Environmental Issues Essay for Students and Children

500+ words essay on environmental issues.

The environment plays a significant role to support life on earth. But there are some issues that are causing damages to life and the ecosystem of the earth. It is related to the not only environment but with everyone that lives on the planet. Besides, its main source is pollution , global warming, greenhouse gas , and many others. The everyday activities of human are constantly degrading the quality of the environment which ultimately results in the loss of survival condition from the earth.

Environmental Issues Essay

Source of Environment Issue

There are hundreds of issue that causing damage to the environment. But in this, we are going to discuss the main causes of environmental issues because they are very dangerous to life and the ecosystem.

Pollution – It is one of the main causes of an environmental issue because it poisons the air , water , soil , and noise. As we know that in the past few decades the numbers of industries have rapidly increased. Moreover, these industries discharge their untreated waste into the water bodies, on soil, and in air. Most of these wastes contain harmful and poisonous materials that spread very easily because of the movement of water bodies and wind.

Greenhouse Gases – These are the gases which are responsible for the increase in the temperature of the earth surface. This gases directly relates to air pollution because of the pollution produced by the vehicle and factories which contains a toxic chemical that harms the life and environment of earth.

Climate Changes – Due to environmental issue the climate is changing rapidly and things like smog, acid rains are getting common. Also, the number of natural calamities is also increasing and almost every year there is flood, famine, drought , landslides, earthquakes, and many more calamities are increasing.

Above all, human being and their greed for more is the ultimate cause of all the environmental issue.

Get the huge list of more than 500 Essay Topics and Ideas

How to Minimize Environment Issue?

Now we know the major issues which are causing damage to the environment. So, now we can discuss the ways by which we can save our environment. For doing so we have to take some measures that will help us in fighting environmental issues .

Moreover, these issues will not only save the environment but also save the life and ecosystem of the planet. Some of the ways of minimizing environmental threat are discussed below:

Reforestation – It will not only help in maintaining the balance of the ecosystem but also help in restoring the natural cycles that work with it. Also, it will help in recharge of groundwater, maintaining the monsoon cycle , decreasing the number of carbons from the air, and many more.

The 3 R’s principle – For contributing to the environment one should have to use the 3 R’s principle that is Reduce, Reuse, and Recycle. Moreover, it helps the environment in a lot of ways.

To conclude, we can say that humans are a major source of environmental issues. Likewise, our activities are the major reason that the level of harmful gases and pollutants have increased in the environment. But now the humans have taken this problem seriously and now working to eradicate it. Above all, if all humans contribute equally to the environment then this issue can be fight backed. The natural balance can once again be restored.

FAQs about Environmental Issue

Q.1 Name the major environmental issues. A.1 The major environmental issues are pollution, environmental degradation, resource depletion, and climate change. Besides, there are several other environmental issues that also need attention.

Q.2 What is the cause of environmental change? A.2 Human activities are the main cause of environmental change. Moreover, due to our activities, the amount of greenhouse gases has rapidly increased over the past few decades.

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119 Environmental Issues Essay Topic Ideas & Examples

Inside This Article

The environment is facing numerous challenges today, and it is important for us to address these issues in order to create a sustainable future for our planet. In this article, we will explore 119 environmental issues essay topic ideas and provide examples to help you get started on your own essay.

  • Climate change: Discuss the causes and effects of climate change and potential solutions to mitigate its impact.

Example: The role of deforestation in contributing to climate change and the importance of reforestation efforts.

  • Air pollution: Analyze the sources of air pollution and its effects on human health and the environment.

Example: The impact of vehicle emissions on air quality in urban areas and ways to reduce pollution from transportation.

  • Water pollution: Examine the sources of water pollution and the potential consequences for aquatic ecosystems and human health.

Example: The effects of agricultural runoff on water quality and strategies to prevent pollution from entering waterways.

  • Deforestation: Discuss the causes and consequences of deforestation and the importance of preserving forests for biodiversity and climate regulation.

Example: The impact of deforestation on indigenous communities and the loss of traditional knowledge and cultural practices.

  • Plastic pollution: Explore the sources and effects of plastic pollution in the ocean and ways to reduce plastic waste.

Example: The role of microplastics in marine ecosystems and the need for regulations to prevent further pollution.

  • Biodiversity loss: Analyze the factors contributing to the loss of biodiversity and the importance of protecting endangered species.

Example: The impact of habitat destruction on wildlife populations and the need for conservation efforts to preserve biodiversity.

  • Overfishing: Discuss the consequences of overfishing on marine ecosystems and sustainable fishing practices.

Example: The decline of fish stocks due to overfishing and the importance of implementing fishing quotas and marine protected areas.

  • E-waste: Examine the growing problem of electronic waste and the environmental and health risks associated with improper disposal.

Example: The challenges of recycling electronic devices and the need for better e-waste management practices.

  • Urban sprawl: Analyze the impact of urban sprawl on natural habitats and the importance of smart growth and sustainable urban planning.

Example: The loss of green spaces and farmland to urban development and the benefits of compact, walkable communities.

  • Renewable energy: Discuss the potential of renewable energy sources to reduce greenhouse gas emissions and dependence on fossil fuels.

Example: The growth of solar and wind power as clean energy alternatives and the challenges of integrating renewables into the grid.

  • Ocean acidification: Explore the causes and consequences of ocean acidification on marine ecosystems and the need for carbon emission reductions.

Example: The effects of ocean acidification on coral reefs and shellfish populations and the importance of marine conservation efforts.

  • Soil erosion: Analyze the causes of soil erosion and the impact on agricultural productivity and ecosystem health.

Example: The loss of topsoil due to deforestation and unsustainable farming practices and strategies to prevent erosion through soil conservation.

  • Wildlife trafficking: Discuss the illegal trade of wildlife and the threats to endangered species and biodiversity.

Example: The demand for exotic pets and animal products driving the illegal wildlife trade and the need for stronger enforcement of wildlife protection laws.

  • Pesticide use: Examine the environmental and health risks associated with pesticide use in agriculture and the need for sustainable pest management practices.

Example: The impact of pesticide runoff on water quality and non-target species and the benefits of organic farming methods.

  • Food waste: Analyze the causes and consequences of food waste and potential solutions to reduce waste and improve food security.

Example: The environmental footprint of food production and distribution and the benefits of composting and food rescue programs.

  • Greenhouse gas emissions: Discuss the sources of greenhouse gas emissions and the need for global action to reduce carbon pollution.

Example: The role of the transportation sector in contributing to greenhouse gas emissions and the potential for electrification and public transit to reduce emissions.

  • Climate refugees: Explore the impact of climate change on vulnerable communities and the need for adaptation and resilience measures.

Example: The displacement of communities due to sea-level rise and extreme weather events and the challenges of climate migration.

  • Land degradation: Analyze the causes of land degradation and the consequences for food security, water quality, and ecosystem health.

Example: The loss of arable land to desertification and soil erosion and the importance of sustainable land management practices.

  • Ocean pollution: Discuss the sources of ocean pollution, including plastic waste, oil spills, and chemical contaminants, and the need for marine conservation.

Example: The impact of oil spills on marine ecosystems and the challenges of cleaning up and restoring affected areas.

  • Environmental justice: Explore the intersection of environmental issues with social justice and equity, including the disproportionate impacts on marginalized communities.

Example: The siting of polluting industries in low-income neighborhoods and communities of color and the need for environmental policies that prioritize equity and inclusion.

  • Green infrastructure: Discuss

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Climate change: a threat to human wellbeing and health of the planet. taking action now can secure our future.

BERLIN, Feb 28 – Human-induced climate change is causing dangerous and widespread disruption in nature and affecting the lives of billions of people around the world, despite efforts to reduce the risks. People and ecosystems least able to cope are being hardest hit, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report, released today.

“This report is a dire warning about the consequences of inaction,” said Hoesung Lee, Chair of the IPCC. “It shows that climate change is a grave and mounting threat to our wellbeing and a healthy planet. Our actions today will shape how people adapt and nature responds to increasing climate risks.”

The world faces unavoidable multiple climate hazards over the next two decades with global warming of 1.5°C (2.7°F). Even temporarily exceeding this warming level will result in additional severe impacts, some of which will be irreversible. Risks for society will increase, including to infrastructure and low-lying coastal settlements.

The Summary for Policymakers of the IPCC Working Group II report,  Climate Change 2022: Impacts, Adaptation and Vulnerability was approved on Sunday, February 27 2022, by 195 member governments of the IPCC, through a virtual approval session that was held over two weeks starting on February 14.

Urgent action required to deal with increasing risks

Increased heatwaves, droughts and floods are already exceeding plants’ and animals’ tolerance thresholds, driving mass mortalities in species such as trees and corals. These weather extremes are occurring simultaneously, causing cascading impacts that are increasingly difficult to manage. They have exposed millions of people to acute food and water insecurity, especially in Africa, Asia, Central and South America, on Small Islands and in the Arctic.

To avoid mounting loss of life, biodiversity and infrastructure, ambitious, accelerated action is required to adapt to climate change, at the same time as making rapid, deep cuts in greenhouse gas emissions. So far, progress on adaptation is uneven and there are increasing gaps between action taken and what is needed to deal with the increasing risks, the new report finds. These gaps are largest among lower-income populations. 

The Working Group II report is the second instalment of the IPCC’s Sixth Assessment Report (AR6), which will be completed this year.

“This report recognizes the interdependence of climate, biodiversity and people and integrates natural, social and economic sciences more strongly than earlier IPCC assessments,” said Hoesung Lee. “It emphasizes the urgency of immediate and more ambitious action to address climate risks. Half measures are no longer an option.”

Safeguarding and strengthening nature is key to securing a liveable future

There are options to adapt to a changing climate. This report provides new insights into nature’s potential not only to reduce climate risks but also to improve people’s lives.

“Healthy ecosystems are more resilient to climate change and provide life-critical services such as food and clean water”, said IPCC Working Group II Co-Chair Hans-Otto Pörtner. “By restoring degraded ecosystems and effectively and equitably conserving 30 to 50 per cent of Earth’s land, freshwater and ocean habitats, society can benefit from nature’s capacity to absorb and store carbon, and we can accelerate progress towards sustainable development, but adequate finance and political support are essential.”

Scientists point out that climate change interacts with global trends such as unsustainable use of natural resources, growing urbanization, social inequalities, losses and damages from extreme events and a pandemic, jeopardizing future development.

“Our assessment clearly shows that tackling all these different challenges involves everyone – governments, the private sector, civil society – working together to prioritize risk reduction, as well as equity and justice, in decision-making and investment,” said IPCC Working Group II Co-Chair Debra Roberts.

“In this way, different interests, values and world views can be reconciled. By bringing together scientific and technological know-how as well as Indigenous and local knowledge, solutions will be more effective. Failure to achieve climate resilient and sustainable development will result in a sub-optimal future for people and nature.”

Cities: Hotspots of impacts and risks, but also a crucial part of the solution

This report provides a detailed assessment of climate change impacts, risks and adaptation in cities, where more than half the world’s population lives. People’s health, lives and livelihoods, as well as property and critical infrastructure, including energy and transportation systems, are being increasingly adversely affected by hazards from heatwaves, storms, drought and flooding as well as slow-onset changes, including sea level rise.

“Together, growing urbanization and climate change create complex risks, especially for those cities that already experience poorly planned urban growth, high levels of poverty and unemployment, and a lack of basic services,” Debra Roberts said.

“But cities also provide opportunities for climate action – green buildings, reliable supplies of clean water and renewable energy, and sustainable transport systems that connect urban and rural areas can all lead to a more inclusive, fairer society.”

There is increasing evidence of adaptation that has caused unintended consequences, for example destroying nature, putting peoples’ lives at risk or increasing greenhouse gas emissions. This can be avoided by involving everyone in planning, attention to equity and justice, and drawing on Indigenous and local knowledge.

A narrowing window for action

Climate change is a global challenge that requires local solutions and that’s why the Working Group II contribution to the IPCC’s Sixth Assessment Report (AR6) provides extensive regional information to enable Climate Resilient Development.

The report clearly states Climate Resilient Development is already challenging at current warming levels. It will become more limited if global warming exceeds 1.5°C (2.7°F). In some regions it will be impossible if global warming exceeds 2°C (3.6°F). This key finding underlines the urgency for climate action, focusing on equity and justice. Adequate funding, technology transfer, political commitment and partnership lead to more effective climate change adaptation and emissions reductions.

“The scientific evidence is unequivocal: climate change is a threat to human wellbeing and the health of the planet. Any further delay in concerted global action will miss a brief and rapidly closing window to secure a liveable future,” said Hans-Otto Pörtner.

For more information, please contact:

IPCC Press Office, Email: [email protected]   IPCC Working Group II:  Sina Löschke,  Komila Nabiyeva: [email protected]

Notes for Editors

Climate Change 2022: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change

The Working Group II report examines the impacts of climate change on nature and people around the globe. It explores future impacts at different levels of warming and the resulting risks and offers options to strengthen nature’s and society’s resilience to ongoing climate change, to fight hunger, poverty, and inequality and keep Earth a place worth living on – for current as well as for future generations. 

Working Group II introduces several new components in its latest report: One is a special section on climate change impacts, risks and options to act for cities and settlements by the sea, tropical forests, mountains, biodiversity hotspots, dryland and deserts, the Mediterranean as well as the polar regions. Another is an atlas that will present data and findings on observed and projected climate change impacts and risks from global to regional scales, thus offering even more insights for decision makers.

The Summary for Policymakers of the Working Group II contribution to the Sixth Assessment Report (AR6) as well as additional materials and information are available at https://www.ipcc.ch/report/ar6/wg2/

Note : Originally scheduled for release in September 2021, the report was delayed for several months by the COVID-19 pandemic, as work in the scientific community including the IPCC shifted online. This is the second time that the IPCC has conducted a virtual approval session for one of its reports.

AR6 Working Group II in numbers

270 authors from 67 countries

  • 47 – coordinating authors
  • 184 – lead authors
  • 39 – review editors
  • 675 – contributing authors

Over 34,000 cited references

A total of 62,418 expert and government review comments

(First Order Draft 16,348; Second Order Draft 40,293; Final Government Distribution: 5,777)

More information about the Sixth Assessment Report can be found  here .

Additional media resources

Assets available after the embargo is lifted on Media Essentials website .

Press conference recording, collection of sound bites from WGII authors, link to presentation slides, B-roll of approval session, link to launch Trello board including press release and video trailer in UN languages, a social media pack.

The website includes  outreach materials  such as videos about the IPCC and video recordings from  outreach events  conducted as webinars or live-streamed events.

Most videos published by the IPCC can be found on our  YouTube  channel. Credit for artwork

About the IPCC

The Intergovernmental Panel on Climate Change (IPCC) is the UN body for assessing the science related to climate change. It was established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988 to provide political leaders with periodic scientific assessments concerning climate change, its implications and risks, as well as to put forward adaptation and mitigation strategies. In the same year the UN General Assembly endorsed the action by the WMO and UNEP in jointly establishing the IPCC. It has 195 member states.

Thousands of people from all over the world contribute to the work of the IPCC. For the assessment reports, IPCC scientists volunteer their time to assess the thousands of scientific papers published each year to provide a comprehensive summary of what is known about the drivers of climate change, its impacts and future risks, and how adaptation and mitigation can reduce those risks.

The IPCC has three working groups:  Working Group I , dealing with the physical science basis of climate change;  Working Group II , dealing with impacts, adaptation and vulnerability; and  Working Group III , dealing with the mitigation of climate change. It also has a  Task Force on National Greenhouse Gas Inventories  that develops methodologies for measuring emissions and removals. As part of the IPCC, a Task Group on Data Support for Climate Change Assessments (TG-Data) provides guidance to the Data Distribution Centre (DDC) on curation, traceability, stability, availability and transparency of data and scenarios related to the reports of the IPCC.

IPCC assessments provide governments, at all levels, with scientific information that they can use to develop climate policies. IPCC assessments are a key input into the international negotiations to tackle climate change. IPCC reports are drafted and reviewed in several stages, thus guaranteeing objectivity and transparency. An IPCC assessment report consists of the contributions of the three working groups and a Synthesis Report. The Synthesis Report integrates the findings of the three working group reports and of any special reports prepared in that assessment cycle.

About the Sixth Assessment Cycle

At its 41st Session in February 2015, the IPCC decided to produce a Sixth Assessment Report (AR6). At its 42nd Session in October 2015 it elected a new Bureau that would oversee the work on this report and the Special Reports to be produced in the assessment cycle.

Global Warming of 1.5°C , an IPCC special report on the impacts of global warming of 1.5 degrees Celsius above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty  was launched in October 2018.

Climate Change and Land , an IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems  was launched in August 2019, and the  Special Report on the Ocean and Cryosphere in a Changing Climate  was released in September 2019.

In May 2019 the IPCC released the  2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories , an update to the methodology used by governments to estimate their greenhouse gas emissions and removals.

In August 2021 the IPCC released the Working Group I contribution to the AR6, Climate Change 2021, the Physical Science Basis

The Working Group III contribution to the AR6 is scheduled for early April 2022.

The Synthesis Report of the Sixth Assessment Report will be completed in the second half of 2022.

For more information go to  www.ipcc.ch

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Harvard students share thoughts, fears, plans to meet environmental challenges

For many, thinking about the world’s environmental future brings concern, even outright alarm.

There have been, after all, decades of increasingly strident warnings by experts and growing, ever-more-obvious signs of the Earth’s shifting climate. Couple this with a perception that past actions to address the problem have been tantamount to baby steps made by a generation of leaders who are still arguing about what to do, and even whether there really is a problem.

It’s no surprise, then, that the next generation of global environmental leaders are preparing for their chance to begin work on the problem in government, business, public health, engineering, and other fields with a real sense of mission and urgency.

The Gazette spoke to students engaged in environmental action in a variety of ways on campus to get their views of the problem today and thoughts on how their activities and work may help us meet the challenge.

Eric Fell is pictured.

Eric Fell and Eliza Spear

Fell is president and Spear is vice president of Harvard Energy Journal Club. Fell is a graduate student at the Harvard John H. Paulson School of Engineering and Applied Sciences and Spear is a graduate student in the Department of Chemistry and Chemical Biology.

FELL:   For the past three centuries, fossil fuels have enabled massive growth of our civilization to where we are today. But it is now time for a new generation of cleaner-energy technologies to fuel the next chapter of humanity’s story. We’re not too late to solve this environmental challenge, but we definitely shouldn’t procrastinate as much as we have been. I don’t worry about if we’ll get it done, it’s the when. Our survival depends on it. At Harvard, I’ve been interested in the energy-storage problem and have been focusing on developing a grid-scale solution utilizing flow batteries based on organic molecules in the lab of Mike Aziz . We’ll need significant deployment of batteries to enable massive penetration of renewables into the electrical grid.

SPEAR: Processes leading to greenhouse-gas emissions are so deeply entrenched in our way of life that change continues to be incredibly slow. We need to be making dramatic structural changes, and we should all be very worried about that. In the Harvard Energy Journal Club, our focus is energy, so we strive to learn as much as we can about the diverse options for clean-energy generation in various sectors. A really important aspect of that is understanding how much of an impact those technologies, like solar, hydro, and wind, can really have on reducing greenhouse-gas emissions. It’s not always as much as you’d like to believe, and there are still a lot of technical and policy challenges to overcome.

I can’t imagine working on anything else, but the question of what I’ll be working on specifically is on my mind a lot. The photovoltaics field is at a really exciting point where a new technology is just starting to break out onto the market, so there are a lot of opportunities for optimization in terms of performance, safety, and environmental impact. That’s what I’m working on now [in Roy Gordon’s lab ] and I’m really enjoying it. I’ll definitely be in the renewable-energy technology realm. The specifics will depend on where I see the greatest opportunity to make an impact.

Kritika Kharbanda is pictured.

Photo (left) courtesy of Kritika Kharbanda; photo by Tiera Satchebell.

Kritika Kharbanda ’23 and Laier-Rayshon Smith ’21

Kharbanda is with the Harvard Student Climate Change Conference, Harvard Circular Economy Symposium. Smith is a member of Climate Leaders Program for Professional Students at Harvard. Both are students at Harvard Graduate School of Design.

KHARBANDA: I come from a country where the most pressing issues are, and will be for a long time, poverty, food shortage, and unemployment born out of corruption, illiteracy, and rapid gentrification. India was the seventh-most-affected country by climate change in 2019. With two-thirds of the population living in rural areas with no access to electricity, even the notion of climate change is unimaginable.

I strongly believe that the answer lies in the conjugality of research and industry. In my field, achieving circularity in the building material processes is the burning concern. The building industry currently contributes to 40 percent of global carbon dioxide emissions, of which 38 percent is contributed by the embedded or embodied energy used for the manufacturing of materials. A part of the Harvard i-lab, I am a co-founder of Cardinal LCA, an early stage life-cycle assessment tool that helps architects and designers visualize this embedded energy in building materials, saving up to 46 percent of the energy from the current workflow. This venture has a strong foundation as a research project for a seminar class I took at the GSD in fall 2020, instructed by Jonathan Grinham. I am currently working as a sustainability engineer at Henning Larsen architects in Copenhagen while on a leave of absence from GSD. In the decades to come, I aspire to continue working on the embodied carbon aspect of the building industry. Devising an avant garde strategy to record the embedded carbon is the key. In the end, whose carbon is it, anyway?

SMITH: The biggest challenges are areas where the threat of climate change intersects with environmental justice. It is important that we ensure that climate-change mitigation and adaptation strategies are equitable, whether it is sea-level rise or the increase in urban heat islands. We should seek to address the threats faced by the most vulnerable communities — the communities least able to resolve the threat themselves. These often tend to be low-income communities and communities of color that for decades have been burdened with bearing the brunt of environmental health hazards.

During my time at Harvard, I have come to understand how urban planning and design can seek to address this challenge. Planners and designers can develop strategies to prioritize communities that are facing a significant climate-change risk, but because of other structural injustices may not be able to access the resources to mitigate the risk. I also learned about climate gentrification: a phenomenon in which people in wealthier communities move to areas with lower risks of climate-change threats that are/were previously lower-income communities. I expect to work on many of these issues, as many are connected and are threats to communities across the country. From disinvestment and economic extraction to the struggle to find quality affordable housing, these injustices allow for significant disparities in life outcomes and dealing with risk.

Lucy Shaw is pictured.

Lucy Shaw ’21

Shaw is co-president of the HBS Energy and Environment Club. She is a joint-degree student at Harvard Business School and Harvard Kennedy School.

SHAW: I want to see a world where climate change is averted and the environment preserved, without it being at the expense of the development and prosperity of lower-income countries. We have, or are on the cusp of having, many of the financial and technological tools we need to reduce emissions and environmental damage from a wide array of industries, such as agriculture, energy, and transport. The challenge I am most worried about is how we balance economic growth and opportunity with reducing humanity’s environmental impact and share this burden equitably across countries.

I came to Harvard as a joint degree student at the Kennedy School and Business School to be able to see this challenge from two different angles. In my policy-oriented classes, we learned about the opportunities and challenges of global coordination among national governments — the difficulty in enforcing climate agreements, and in allocating and agreeing on who bears the responsibility and the costs of change, but also the huge potential that an international framework with nationally binding laws on environmental protection and carbon-emission reduction could have on changing the behavior of people and businesses. In my business-oriented classes, we learned about the power of business to create change, if there is a driven leadership. We also learned that people and businesses respond to incentives, and the importance of reducing cost of technologies or increasing the cost of not switching to more sustainable technologies — for example, through a tax. After graduate school, I plan to join a leading private equity investor in their growing infrastructure team, which will equip me with tools to understand what makes a good investment in infrastructure and what are the opportunities for reducing the environmental impact of infrastructure while enhancing its value. I hope to one day be involved in shaping environmental and development policy, whether it is on a national or international level.

essay on threats to environment

Photo (left) by Tabitha Soren.

Quinn Lewis ’23 and Suhaas Bhat ’24

Both are with the Student Climate Change Conference, Harvard College.

LEWIS:   When I was a kid, I imagined being an adult as a future with a stable house, a fun job, and happy kids. That future didn’t include wildfires that obscured the sun for months, global water shortages, or billionaires escaping to terrariums on Mars. The threats are so great and so assured by inaction that it’s very hard for me to justify doing anything else with my time and attention because very little will matter if there’s 1 billion climate refugees and significant portions of the continental United States become uninhabitable for human life.

For whatever reason, I still feel a great deal of hope around giving it a shot. I can’t imagine not working to mitigate the climate crisis. Media and journalism will play a huge role in raising awareness, as they generate public pressure that can sway those in power. Another route for change is to cut directly to those in power and try to convince them of the urgency of the situation. Given that I am 22 years old, it is much easier to raise public awareness or work in media and journalism than it is to sit down with some of the most powerful people on the planet, who tend to be rather busy. At school, I’m on a team that runs the University-wide Student Climate Change Conference at Harvard, which is a platform for speakers from diverse backgrounds to discuss the climate crisis and ways students and educators can take immediate and effective action. Also, I write about and research challenges and solutions to the climate crisis through the lenses of geopolitics and the global economy, both as a student at the College and as a case writer at the Harvard Business School. Outside of Harvard, I have worked in investigative journalism and at Crooked Media, as well as on political campaigns to indirectly and directly drive urgency around the climate crisis.

BHAT:   The failure to act on climate change in the last few decades, despite mountains of scientific evidence, is a consequence of political and institutional cowardice. Fossil fuel companies have obfuscated, misinformed, and lobbied for decades, and governments have failed to act in the best interests of their citizens. Of course, the fight against climate change is complex and multidimensional, requiring scientific, technical, and entrepreneurial expertise, but it will ultimately require systemic change to allow these talents to shine.

At Harvard, my work on climate has been focused on running the Harvard Student Climate Conference, as well as organizing for Fossil Fuel Divest Harvard. My hope for the Climate Conference is to provide students access to speakers who have dedicated their careers to all aspects of the fight against climate change, so that students interested in working on climate have more direction and inspiration for what to do with their careers. We’ve featured Congresswoman Ayanna Pressley, members of the Sunrise Movement, and the CEO of Impossible Foods as some examples of inspiring and impactful people who are working against climate change today.

I organize for FFDH because I believe that serious institutional change is necessary for solving the climate crisis and also because of a sort of patriotism I have for Harvard. I deeply respect and care for this institution, and genuinely believe it is an incredible force for good in the world. At the same time, I believe Harvard has a moral duty to stand against the corporations whose misdeeds and falsification of science have enabled the climate crisis.

Libby Dimenstein is pictured.

Libby Dimenstein ’22

Dimenstein is co-president of Harvard Law School Environmental Law Society.

DIMENSTEIN:   Climate change is the one truly existential threat that my generation has had to face. What’s most scary is that we know it’s happening. We know how bad it will be; we know people are already dying from it; and we still have done so little relative to the magnitude of the problem. I also worry that people don’t see climate change as an “everyone problem,” and more as a problem for people who have the time and money to worry about it, when in reality it will harm people who are already disadvantaged the most.

I want to recognize Professor Wendy Jacobs, who recently passed away. Wendy founded HLS’s fantastic Environmental Law and Policy Clinic, and she also created an interdisciplinary class called the Climate Solutions Living Lab. In the lab, groups of students drawn from throughout the University would conduct real-world projects to reduce greenhouse-gas emissions. The class was hard, because actually reducing greenhouse gases is hard, but it taught us about the work that needs to be done. This summer I’m interning with the Environmental Defense Fund’s U.S. Clean Air Team, and I anticipate a lot of my work will revolve around the climate. After graduating, I’m hoping to do environmental litigation, either with a governmental division or a nonprofit, but I also have an interest in policy work: Impact litigation is fascinating and important, but what we need most is sweeping policy change.

Candice Chen is pictured.

Candice Chen ’22 and Noah Secondo ’22

Chen and Secondo are co-directors of the Harvard Environmental Action Committee. Both attend Harvard College.

SECONDO: The environment is fundamental to rural Americans’ identity, but they do not believe — as much as urban Americans — that the government can solve environmental problems. Without the whole country mobilized and enthusiastic, from New Hampshire to Nebraska, we will fail to confront the climate crisis. I have no doubt that we can solve this problem. To rebuild trust between the U.S. government and rural communities, federal departments and agencies need to speak with rural stakeholders, partner with state and local leaders, and foreground rural voices. Through the Harvard College Democrats and the Environmental Action Committee, I have contributed to local advocacy efforts and creative projects, including an environmental art publication.

I hope to work in government to keep the policy development and implementation processes receptive to rural perspectives, including in the environmental arena. At every level of government, if we work with each other in good faith, we will tackle the climate crisis and be better for it.

CHEN: I’m passionate about promoting more sustainable, plant-based diets. As individual consumers, we have very little control over the actions of the largest emitters, massive corporations, but we can all collectively make dietary decisions that can avoid a lot of environmental degradation. Our food system is currently very wasteful, and our overreliance on animal agriculture devastates natural ecosystems, produces lots of potent greenhouse gases, and creates many human health hazards from poor animal-waste disposal. I feel like the climate conversation is often focused around the clean energy transition, and while it is certainly the largest component of how we can avoid the worst effects of global warming, the dietary conversation is too often overlooked. A more sustainable future also requires us to rethink agriculture, and especially what types of agriculture our government subsidizes. In the coming years, I hope that more will consider the outsized environmental impact of animal agriculture and will consider making more plant-based food swaps.

To raise awareness of the environmental benefits of adopting a more plant-based diet, I’ve been involved with running a campaign through the Environmental Action Committee called Veguary. Veguary encourages participants to try going vegetarian or vegan for the month of February, and participants receive estimates for how much their carbon/water/land use footprints have changed based on their pledged dietary changes for the month.

Cristina Liu is pictured.

Photo (left) courtesy of Cristina Su Liu.

Cristina Su Liu ’22 and James Healy ’21

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Liu is with Harvard Climate Leaders Program for Professional Students. Healy is with the Harvard Student Climate Change Conference. Both are students at Harvard T.H. Chan School of Public Health.

HEALY:   As a public health student I see so many environmental challenges, be it the 90 percent of the world who breathe unhealthy air, or the disproportionate effects of extreme heat on communities of color, or the environmental disruptions to the natural world and the zoonotic disease that humans are increasingly being exposed to. But the central commonality at the heart of all these crises is the climate crisis. Climate change, from the greenhouse-gas emissions to the physical heating of the Earth, is worsening all of these environmental crises. That’s why I call the climate crisis the great exacerbator. While we will all feel the effects of climate change, it will not be felt equally. Whether it’s racial inequity or wealth inequality, the climate crisis is widening these already gaping divides.

Solutions may have to be outside of our current road maps for confronting crises. I have seen the success of individual efforts and private innovation in tackling the COVID-19 pandemic, from individuals wearing masks and social distancing to the huge advances in vaccine development. But for climate change, individual efforts and innovation won’t be enough. I would be in favor of policy reform and coalition-building between new actors. As an overseer of the Harvard Student Climate Change Conference and the Harvard Climate Leaders Program, I’ve aimed to help mobilize Harvard’s diverse community to tackle climate change. I am also researching how climate change makes U.S. temperatures more variable, and how that’s reducing the life expectancies of Medicare recipients. The goal of this research, with Professor Joel Schwartz, will be to understand the effects of climate change on vulnerable communities. I certainly hope to expand on these themes in my future work.

SU LIU:  A climate solution will need to be a joint effort from the whole society, not just people inside the environmental or climate circles. In addition to cross-sectoral cooperation, solving climate change will require much stronger international cooperation so that technologies, projects, and resources can be developed and shared globally. As a Chinese-Brazilian student currently studying in the United States, I find it very valuable to learn about the climate challenges and solutions of each of these countries, and how these can or cannot be applied in other settings. China-U.S. relations are tense right now, but I hope that climate talks can still go ahead since we have much to learn from each other.

Personally, as a student in environmental health at [the Harvard Chan School], I feel that my contribution to addressing this challenge until now has been in doing research, learning more about the health impacts of climate change, and most importantly, learning how to communicate climate issues to people outside climate circles. Every week there are several climate-change events at Harvard, where a different perspective on climate change is addressed. It has been very inspiring for me, and I feel that I could learn about climate change in a more holistic way.

Recently, I started an internship at FXB Village, where I am working on developing and integrating climate resilience indicators into their poverty-alleviation program in rural communities in Puebla, Mexico. It has been very rewarding to introduce climate-change and climate-resilience topics to people working on poverty alleviation and see how everything is interconnected. When we address climate resilience, we are also addressing access to basic services, livelihoods, health, equity, and quality of life in general. This is where climate justice is addressed, and that is a very powerful idea.

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essay on threats to environment

Facts about the nature crisis

Pixabay/andreas160578

What you need to know about the nature crisis

We are experiencing a dangerous decline in nature and humans are causing it:

  • We are using the equivalent of 1.6 Earths to maintain our current way of life and ecosystems cannot keep up with our demands. (Becoming Generation Restoration, UNEP)
  • One million of the world’s estimated 8 million species of plants and animals are threatened with extinction. (IPBES)
  • 75 percent of the Earth’s land surface has been significantly altered by human actions, including 85 percent of wetland areas. (IPBES)
  • 66 percent of ocean area is impacted by human activities, including from fisheries and pollution. (IPBES)
  • Close to 90% of the world’s marine fish stocks are fully exploited, overexploited or depleted. (UNCTAD)
  • Our global food system is the primary driver of biodiversity loss with agriculture alone being the identified threat 24,000 of the 28,000 species at risk of extinction. (Chatham House and UNEP)
  • Agricultural expansion is said to account for 70% of the projected loss of terrestrial biodiversity. (CBD)

From 7-19 December 2022, countries met in Montreal for  COP15  to strike a landmark agreement to guide global actions on biodiversity.  The Kunming-Montreal Global Biodiversity Framework lays out an ambitious plan that addresses the key drivers of biodiversity loss and puts us on the path to halt and reverse nature loss by 2030. See  UNEP’s COP-15 page  for more information and the latest updates.

What are the impacts of nature loss and degradation

Nature loss has far-reaching consequences. Damaged ecosystems exacerbate climate change, undermine food security and put people and communities at risk. 

  • Around 3.2 billion people, or 40 percent of the global population, are adversely affected by land degradation.
  • Up to $577 billion in annual global crop production is at risk from pollinator loss.
  • 25 percent of global greenhouse gas emissions are generated by land clearing, crop production and fertilization.
  • Development is putting animals and humans in closer contact increasing the risk of diseases like COVID-19 to spread. About 60 percent of human infections are estimated to have an animal origin. 
  • 100-300 million people are at increased risk of floods and hurricanes because of coastal habitat loss. 
  • Declines in nature and biodiversity at current trajectories will undermine progress toward 35 out of 44 of the targets of SDGs related to poverty, hunger, health, water cities, climate, oceans and land.

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What do we need to do to halt and reverse nature loss?

We only have until the end of the decade to bend the curve on nature and biodiversity loss. Transformational change is possible if we start now at every level from local to global. Actions that should be taken include:

  • The UN Biodiversity Conference (COP 15) in Montreal later this year must culminate in a clearly defined, ambitious Post-2020 Global Biodiversity Framework that is matched by finances and accountability mechanisms to achieve the framework’s targets. Read more about COP 15 .
  • Investments in nature-based solutions will need to at least triple by 2030 if the world is to meet its climate change, biodiversity and land degradation targets. Explore UNEP’s State of Finance for Nature report and watch the video.
  • Preventing the large-scale collapse of nature will require effective conservation of more of our land, inland waters and oceans, as well as the world delivering on its current commitment to restore at least one billion hectares of degraded land in the next decade. Learn about the UN Decade on Ecosystem Restoration.
  • Agriculture has altered the face of the planet more than any other human activity. We need to transform our food systems to become more sustainable and resilient in order to reverse environmental degradation, restore ecosystems and ensure food and nutritional security. Read about food system impacts on nature and biodiversity.
  • Governments must assign a financial value on the services that nature provides to people so that environmental action can be prioritized in policy and investment decisions. Read the IPBES new report for how assigning values to nature can help address biodiversity loss.
  • Tax structures and subsidies should be reformed to incentivize sustainable production and ensure that environmental degradation no longer pays. This joint FAO-UNDP-UNEP report calls for governments to rethink the way agriculture is subsidized and supported.
  • Corporations should put sustainability at the heart of decision making and focus on new sustainable business models to meet society’s needs in ways less impactful on the environment. UNEP’s Global Environment Outlook for Business briefs provide roadmaps that business can follow to address our environmental challenges.
  • All financial players should align their business strategies with global and national sustainability goals including the SDGs, the Paris Agreement and the upcoming Biodiversity Framework. Read more about how to catalyze action across the financial system .

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Related Sustainable Development Goals

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The Environmental Threats Our World Is Facing Today

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  • Manju Santhakumari 2 &
  • Netramani Sagar 2 , 3  

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Environmental threats are harmful after-effects of the human activities to the physical environment plaguing the planet with pollution, deforestation, climate change, ozone depletion, and water scarcity. This chapter addresses the three vital parameters such as water, air and climate, to enhance the consciousness among the people. Water scarcity is a severe environmental issue and needs potentially sustainable methods to address the threat. This study emphasizes the techniques to overcome the water crisis, such as wastewater reclamation methods, desalination, and conservation techniques. The work highlights the toxic mixture of particles and gases resulting in air pollution and its effect on humans, animals, and plants. The study focuses the global climate change, another potential future concern and must be defined at our time for our future generations due to rising sea level and catastrophic flooding, shifting weather pattern, and deadly heatwaves. Finally, the work discusses intelligent actions to enhance climate resilience, such as adaptation and mitigation.

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Smart Rain Water Harvesting for Smart Cities

Abbreviations.

Carbon capture and storage

California Department of Pesticide Regulation

Chlorofluorocarbons

European Union

International Energy Agency

Intergovernmental panel on climate change

Kern County Agriculture Commissioner

National Aeronautics and Space Administration

Nongovernmental organization

United Nations

United Nations University Institute for Water, Environment and Health

World Health Organization

Degree centigrade

Microgram per cubic meter

Carbon monoxide

Carbon dioxide

Hydrogen sulfide

Sulfuric acid

Hydrogen chloride

Hydrofluoric acid

Nitric acid

Kilo watt-hour per cubic meter

Nitric oxide

Nitrogen dioxide

Potential Hydrogen

Particulate matter with diameter 10 micrometers

Particulate matter with diameter 2.5 micrometers

Parts per million

Sulfur dioxide

Sulfur trioxide

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Acknowledgment

The authors would like to thank the Director, CSIR-NGRI (Dr VM Tiwari) for permitting to publish this book chapter (NGRI/Lib/2019/Pub-90). The authors thank Dr EVSSK Babu for his encouragement and support and also thank him for providing the necessary facilities to complete the book chapter from institutional projects: MLP-6406-28 (EVB) and GEOMET (MLP-0002-FBR-2-EVSSK).

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Manju Santhakumari & Netramani Sagar

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Santhakumari, M., Sagar, N. (2020). The Environmental Threats Our World Is Facing Today. In: Hussain, C. (eds) Handbook of Environmental Materials Management. Springer, Cham. https://doi.org/10.1007/978-3-319-58538-3_180-1

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Home — Essay Samples — Environment — Environment Problems — Environmental Issues

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Essays on Environmental Issues

Environmental issues are a crucial topic for essays, as they address some of the most pressing challenges facing our planet today. When choosing an environmental issues essay topic, it's important to consider the significance of the subject matter and the potential for impactful discussions. This article will offer advice on selecting a compelling topic and provide a diverse list of recommended essay topics, divided by category.

The Importance of Environmental Issues Essay Topics

Environmental issues encompass a wide range of challenges, including climate change, pollution, deforestation, and endangered species. These topics are critical because they directly impact the health of our planet and all its inhabitants. By addressing environmental issues in essays, students can raise awareness, promote solutions, and contribute to the global conversation about sustainability and conservation.

When choosing a topic for an environmental issues essay, it's essential to consider your interests, the current relevance of the issue, and the potential for generating thought-provoking discussions. You should also take into account the availability of credible sources and data to support your arguments. Additionally, choosing a specific aspect of a broader environmental issue can help narrow the focus of your essay and make your arguments more compelling.

Recommended Environmental Issues Essay Topics

  • Climate Change
  • The impact of climate change on global food security
  • Policy responses to climate change in developing countries
  • The role of renewable energy in mitigating climate change
  • Climate change adaptation strategies for vulnerable communities
  • Carbon pricing and its effectiveness in reducing greenhouse gas emissions
  • The impact of climate change on wildlife
  • Strategies to mitigate climate change
  • The role of renewable energy in combating climate change
  • Climate change and its effect on agriculture
  • The importance of international cooperation in addressing climate change
  • Plastic pollution in the world's oceans
  • The health effects of air pollution in urban areas
  • Regulatory approaches to controlling industrial pollution
  • The impact of electronic waste on the environment
  • Strategies for reducing water pollution in agricultural areas
  • The effects of air pollution on human health
  • Ways to reduce water pollution
  • The role of government regulations in controlling pollution
  • The impact of industrial pollution on the environment
  • Deforestation
  • The effects of deforestation on biodiversity in tropical rainforests
  • Community-based forest management as a solution to deforestation
  • The role of corporate responsibility in combating deforestation
  • The impact of deforestation on indigenous communities
  • Reforestation efforts and their impact on climate change mitigation

Endangered Species

  • The ethical implications of captive breeding for endangered species conservation
  • The impact of illegal wildlife trade on endangered species populations
  • Conservation strategies for protecting endangered marine species
  • The role of ecotourism in supporting endangered species conservation
  • The potential for de-extinction in preserving endangered species

Sustainable Development

  • Challenges and opportunities for sustainable urban development
  • The role of sustainable agriculture in addressing food insecurity
  • The impact of consumer behavior on sustainable development goals
  • Corporate sustainability initiatives and their impact on the environment
  • The role of education in promoting sustainable development practices

Environmental Policy

  • The effectiveness of international agreements in addressing environmental issues
  • The role of government regulation in promoting environmental conservation
  • The impact of environmental lobbying on policy-making decisions
  • The potential for market-based solutions in environmental policy
  • The influence of public opinion on environmental policy development

Water Scarcity

  • The causes of water scarcity in developing countries
  • Technological solutions to address water scarcity
  • The impact of water scarcity on agriculture
  • Strategies for sustainable water management
  • The role of government policies in addressing water scarcity

Biodiversity Loss

  • The importance of preserving biodiversity
  • The impact of habitat destruction on biodiversity
  • Strategies for conserving endangered species
  • The role of ecotourism in promoting biodiversity conservation
  • The ethical implications of biodiversity loss

Waste Management

  • The challenges of e-waste disposal
  • Strategies for promoting recycling and composting
  • The impact of waste management on public health
  • The role of circular economy in reducing waste
  • The economic benefits of effective waste management

These environmental issues essay topics provide a wide range of options for students to explore and analyze. By choosing a compelling environmental issues essay topic, students can engage in meaningful discussions and contribute to the ongoing efforts to address the challenges facing our planet. It's climate change, pollution, deforestation, endangered species, sustainable development, or environmental policy - there are countless opportunities to explore and raise awareness about important environmental issues through essays.

Climate Change and Global Cooperation

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The Impact of Plastic Consumption on Our Life

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Environmental Issues: The Problem of Climate Change

The main factors of adapting to a new environment, the power of change: how you can change the world, different types and sources of pollution, the ecological footprint caused by human activities, geography's role in addressing global environmental risks, water pollution, its factors, and ways to reduce, human – the significant wellspring of global warming, climate change as the one of the biggest threats to humanity now, the long term effects of littering and pollution on the environment, a research on the relationship between the global economy and the environmental protection issues, the environment hazard of plastics, deforestation and the ways to overcome it, global warming and what people can do to save earth, we are causing environmental problems and we are suffering from them, the impact of china's progress on the environment, air pollution its causes and damaging effects, the top three individual contributors to climate change, the issue of noise pollution and its effects on the health of humans and wildlife, the debate of whether single-use plastic should be banned, relevant topics.

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essay on threats to environment

National Academies Press: OpenBook

Our Common Journey: A Transition Toward Sustainability (1999)

Chapter: 4 environmental threats and opportunities, 4 environmental threats and opportunities.

The goals for a transition toward sustainability, as we set them out in Chapter 1, are to meet human needs over the next two generations while reducing hunger and poverty and preserving our environmental life support systems. The activities to approach this goal can only move ahead within the constraints set by resources and the environment. Many people have argued that, unless we make dramatic changes in our human enterprises, the development needed to meet future human needs risks damaging the life-support capabilities of the earth—which in turn would of course prevent society from meeting its goals. In this chapter, we therefore ask two related questions:

• What are the greatest threats that humanity will encounter as it attempts to navigate the transition to sustainability?

• What are the most promising opportunities for avoiding or circumventing these threats on the path to sustainability?

Our object is not to predict what environmental damages might be caused by development at particular times and places—a largely futile activity for all but the most specific and immediate development plans. Rather, it is to highlight some of the most serious environmental obstacles that might be met in plausible efforts to reach the goals outlined in Chapter 1 and along development paths such as those explored in Chapters 2 and 3, to take timely steps to avoid or circumvent these obstacles. 1

This chapter begins with a brief discussion of the approaches and issues we considered in scouting the environmental hazards that societies may confront. We then turn to efforts to assess the relative severity of

these hazards for particular times and places. Following the lead of the Brundtland Commission, we next analyze how human activities in a number of crucial developmental sectors might pose important challenges and opportunities for navigating the transition toward sustainability. Finally, we turn to the question of interactions—how multiple developmental activities may interact with complex environmental systems to transform the very nature of the journey before us.

Throughout our discussion, we not only seek to identify potential obstacles to a successful transition, but also to highlight the skills, knowledge, and materials that might be most useful in detecting and understanding the hazards, and in devising solutions or mid-course corrections to address them. We conclude that in any given place there are significant if often place-specific opportunities for societies to pursue goals of meeting human needs while sustaining earth's life support systems. Some of these opportunities are likely to be realized by individual actors—firms, organizations, and states—in the normal course of their self-interested activities. Others, however, will require integrative planning and management approaches.

Conceptual Issues

One of the most difficult challenges of the Board's exercise—and one that has bedeviled other attempts to evaluate the pitfalls to sustainable development—has been to determine which of the many potential problems are truly those that cannot be ignored. Perhaps the easiest approach might be to list as potential concerns for sustainable development every resource limitation or environmental response that can be imagined. Equally clear, however, is that a canoe-steering society that tries to focus public resources on avoiding every possible danger in a river at once will likely be looking the wrong way as it collides with the biggest rock. How can we distinguish those threats that, while not insignificant, are likely to be avoided or adapted to from those with a real potential for sinking the vessel? And how can we devise a system that encourages society to update its priorities among all hazards in light of new information and expertise?

A further difficulty in the analysis arises because hazards have spatial and temporal dimensions and important interactions. However connected the world may be, and however global the transformations humans impose on it, the sustainability transition will be played out differently on a vast number of local stages. Neither population growth, nor climate change, nor water limitations will be the same in Japan as in the Sudan. The environmental hazards that nations and communities find most threatening and the response strategies they look to will continue to be

significantly different in different places in the world and at different times. Moreover, some components of the environmental system have impressive resiliency and ability to recover from human-caused or natural stress. Temporal dynamics and variations in the resiliency of systems confound clear illumination of critical hazards. Identification of hazards must also confront the difficulty of identifying, measuring, and predicting cumulative and interactive effects and discontinuous changes. Many of the activities that humans engage in occur at local scales, but as these activities are repeated around the world, their effects accumulate; collectively, local changes can lead to regional and global changes. Many of the worst and of the best-known environmental problems (e.g., stratospheric ozone depletion, anoxia in the Gulf of Mexico) resulted from the slow, day-by-day accumulation of small changes and dispersed activities. Such cumulative effects are only noticed after they have intensified over time, or when nonlinearities in the response of global or regional systems lead to dramatic and unforeseen events. Interactions of multiple changes also lead to surprise. Consequences that are deemed unlikely are often overlooked, yet rare events with extreme or large-scale consequences may influence the sustainability of the global system even more than cumulative effects.

Clearly, uncertainty is rampant and surprise is inevitable. Recent environmental surprises have ranged from the emergence of "new" communicable diseases such as Legionnaires' disease, in a part of the developed world where such things were assumed to be hazards of the past; through the devastation of the developing-world town of Bhopal, India, in a very modern industrial accident; to the belated discovery that the nontoxic, noncorrosive CFCs that had displaced hazardous refrigerants and propellants turned out to have their own serious risks. 2 More such surprises are likely as the earth system comes under increasing pressure from human activities. One difficulty lies in achieving a balance between falsely declaring certainty to engender action and the fatalistic resignation that societies can never know enough to know when or how to act.

In dealing with these difficulties, the Board has attempted to develop a process for setting priorities and for identifying issues that require top concern. While our analysis builds on numerous national and international "stock-taking" efforts, we ultimately focus our attention on those issues that cut across sectors and that interact to simultaneously threaten human and ecosystem health, urban development, industrial advances, and sustained agricultural production. We conclude that integrative solutions-those aimed at interacting challenges across many sectors—will be key to successfully navigating the transition to sustainability.

Perceptions of risk change with circumstances, as pressures increase, information is collected, technology advances, and surprises occur. The

environmental challenges that local places face as they navigate the transition to sustainability will also differ, because of inherent variations in resource bases and biophysical, social, and political environments. These variations include differences in geochemical and ecological vulnerability to pollution, social capital formation, and countless other details. Together, they make unsatisfactory any global-scale exercise to rank potential hazards. How do we then focus on challenges and opportunities that are relevant at the global scale yet meaningful locally?

We conclude that the most serious threats are those that (1) affect the ability of multiple sectors of almost any society to move ahead toward our normative goals for sustainability; (2) have cumulative or delayed consequences, with effects felt over a long time; (3) are irreversible or difficult to change; and/or (4) have a notable potential to interact with each other to damage earth's support systems. To identify the problems that fit these criteria, we draw on several approaches. First, we use an environment-oriented analysis, 3 in which hazards are ranked on the basis of the breadth of their consequences (e.g., having human health consequences, ecosystem consequences, and consequences for materials and productivity). Secondly, we use the framework of ''common challenges" to development in various sectors proposed by the 1987 Brundtland Commission as the basis for expert group analyses of threats and opportunities for the transition to sustainability. Finally, we identify the threats stemming from the interaction of sectoral activities.

Environmental Perspectives

Researchers 4 drew on the UN Environment Program's The World Environment: 1972–1982 , the U.S. Environmental Protection Agency's Unfinished Business and a range of other national and international environmental assessments that had been carried out worldwide, to develop a list of 28 potential environmental hazards that included most issues judged important in one or more of these studies. The hazards fell into five broad categories: land and water pollution, air pollution, contaminants of the human environment (e.g., indoor air pollution), resource losses, and natural disasters. Environmental data and explicit value judgments about the relative importance of present versus future impacts and of human health versus ecological impacts were then combined to generate comparative national rankings of the overall hazards list. From their analysis, it is apparent that the availability of high-quality freshwater is a priority concern in the United States, whether the most weight is given to human health, ecosystem, or materials concerns. Also, the more regional to global problems of stratospheric ozone depletion, climate change, acidification, and tropospheric ozone production and air pollution are common

and highly ranked issues of concern across the three areas. Such an approach provides the basis for assigning priorities to environmental threats.

In support of this Board's activities, the list was modified 5 and compared with eight other major efforts to assess environmental hazards, scoring each hazard on the basis of how important the various efforts found them to be (Table 4.1). Looking at Table 4.1 as a whole, some problems such as groundwater contamination and forest degradation stand out as being of nearly universal concern. Others, such as indoor air pollution and contamination, show up less frequently. Over time, there has been a shift from a focus on the depletion of natural resources and contamination of the environment to the loss of particular ecosystems (e.g., forests). In the individual assessments, the environmental threats identified as the most serious are often those most salient to a particular population. For example, the report on India devoted considerable attention to the health hazards of chemicals, both in the workplace and in accidental leakages, largely because at the time of the report the Bhopal disaster was still a major environmental event.

Overall, these analyses suggest that, for most nations of the world, water and air pollution are the top priority issues; for most of the more industrialized nations, ozone depletion and climate change are also ranked highly; while for many of the less-industrialized countries, droughts or floods, disease epidemics, and the availability of local living resources are crucial. The scored hazards approach 6 shows that sufficient data exist to make some relative hazard identifications for both today and the future. It also makes clear that relative hazard rankings—even of global environmental problems— are strongly dependent on the circumstances of the region assessed.

One of the limitations of this approach is its failure to address interactions—for example, the fact that such issues as water quality, acidification, and climate change are intimately linked, and that change in one will have consequences for change in others. In addition, because the approach focuses on the problem rather than the cause, it is not a good pragmatic tool on its own. Solutions are difficult to develop without knowing causes.

Development Perspectives

For another type of perspective, we built on the work of the Brundtland Commission's report Our Common Future . 7 In the interests of policy relevance, this effort broke with the tradition of analysis focused on environmental issues. Instead, analysis is directed to the "common challenges" to the environment arising from development activities within particular sectors: population and human resource development, cities,

Table 4.1 Assessments of the Importance of Environmental Hazards

Sources: UNCED (1992); World Bank (1992); WRI (1996); UNEP (1982) ; Easterbrook (1995); Centre for Science and Environment (1995); Council on Environmental Quality and Department of State (1982); Brown (1956).

agricultural production, industry, energy, and living resources. Using the Brundtland "common challenges" concept, we evaluated potential sector-specific resource and environmental impediments to reaching sustainability goals, along with the opportunities each sector offers to reduce, prevent, or mitigate the most serious threats. In addition, we evaluated progress over the last decade in achieving the measures identified by the Brundtland "challenges."

Human Population and Well-Being

In 1987, the Brundtland Commission framed the issue of human population growth in terms of both the balance between population and resources and the need for increased health, well-being, and human rights to self-determination. Today, these issues are strongly linked, and we recognize that the reduction in poverty, poor health, mortality, and the increase in educational and employment opportunities for all are the keys to slowing population growth and to the wise and sustainable use of resources. Thus, one of the most critical challenges for efforts to navigate a transition to sustainability will be to reduce population growth while simultaneously improving the health, education, and opportunities of the world's people.

Population growth is an underlying threat to sustainability due to the increased consumption of energy and materials needed to provide for many more people, to crowding and competition for resources, to environmental degradation, and to the difficulties that added numbers pose in efforts to advance human development. Today, population growth has ended in most industrialized countries and rates of population growth are in decline everywhere except in parts of Africa (see Chapter 2); yet the population of 2050 is nonetheless predicted to reach about 9 billion. In a classic decomposition of future population growth in developing countries, a researcher examined the major sources of this continued growth: unwanted childbearing due to low availability of contraception, a still-large desired family size, and the large number of young people of reproductive age. 8 Currently, 120 million married women (and many more unmarried women) report in surveys that they are not practicing contraception despite a desire for smaller families or for more time between births. Meeting their needs for contraception would reduce future population growth by nearly 2 billion. At the same time, such surveys also show that the desired family size in most developing countries is still above two children. An immediate reduction to the level of replacement (2.1) would reduce future growth by about 1 billion. The remainder of future population growth can be accounted for by so-called population momentum, which is due to the extraordinarily large number of young

people. This momentum ensures that population growth will persist for decades even if fertility were to drop to replacement level.

Addressing each of these sources of future growth could reduce fertility and future population numbers further and faster than current trends would project. Opportunities include making contraception more readily available to those who desire it (Table 4.2), accelerating trends that lead to lower desired family size, and slowing the momentum of population growth arising from the large number of prospective parents that are alive today. 9 Linking voluntary family planning with other reproductive and child health services can increase access to contraception for the many who want it. Improving the survival of children, their education, and the status of girls and women has been correlated with and may lead to a desire for smaller families. Increasing the age of childbearing, primarily by improving the secondary education and income-generating opportunities for adolescent girls, can slow the momentum of population growth. All of these opportunities, if exploited, could contribute directly to our societal goals for a transition to sustainability; at the same time, through these factors' influence on reducing the ultimate size of the population, they would increase the probability of meeting environmental goals.

Threats to human-well being stem from many environmental sources. Environmental factors can affect human health directly—through exposure to air pollution, heavy metals, and synthetic chemicals—and indirectly through loss of natural biological controls over opportunistic agents and vectors of infectious disease. Because of human introductions nearly

Projections of the Population Size of the Developing World With and Without Unwanted Births

Projection

Projected population size (billions) in year

 
 

2050

2100

Standard* (with unwanted births)

8.6

10.2

Without unwanted births

7.5

8.3

Effect of unwanted fertility

1.1

1.9

*World Bank projection as quoted in Bos

Source: Bongaarts (1994). Courtesy of the American Association for the Advancement of Science.

50 years ago, the global environment now carries a number of synthetic chemicals that can interfere with human physiology, including the endocrine system, the immune system, and neurological function. 10 Additionally, heavy metal deposition in the environment is rising and will continue to increase under development scenarios implicit in meeting our normative goals. Health effects of exposure to heavy metals may be substantial, and include long-term neurological effects on intelligence and behavior. Air pollution is a critical problem of urban systems in many regions of the world, and the increase in air pollution with a rapidly urbanizing world raises serious concerns for human health and the health of crops and natural ecosystems. As described in Chapter 2, over the past several decades, there has been an emergence, resurgence, and redistribution of infectious diseases. The potential eruption of diseases in an increasingly populated world is a serious threat to sustainability goals. These diseases threaten human health, water safety, food security, and ecosystem health.

Fortunately, because of biological and other scientific revolutions and policy reform over the past decades, there are opportunities for addressing the health risks from exposure to environmental threats. Biotechnology holds great promise (for example, in the creation of new medicines and diagnostics, pest-resistant crop species, plants with low-water requirements, and biodegradable pesticides and herbicides). Policies that control the point sources of air pollution, deposition of heavy metals, and disposal of synthetic chemicals help resolve health-related problems for local and regional human populations and can have very significant and long-term payoffs for future generations. Also, the establishment of early warning systems and other predictive capabilities to identify conditions conducive to outbreaks and clusters of infectious disease could be useful for health institutions at all spatial scales.

In addition, a number of opportunities arise via interactions of this human well-being sector with others. For example, reduction in industrial wastes through approaches using industrial ecology would have large advantages for human health, and also for the environment as it is affected by energy and water sectors, through the increased efficiency of these resources' use. Finally, the maintenance of natural ecosystems and the protection of their services can influence human health in many ways, including by providing natural enemies for disease vectors and natural water and air purification and supply systems.

Over the next half century, urban populations are likely to grow from the present 3 billion to perhaps 7 billion people, with most of the growth

occurring in non-OECD (see Chapter 2 and 3). 11 Cities are engines of economic growth and wealth creation, of innovation and creativity, but they are also the sites of extremes of wealth and poverty, unequal access to drinking water and sanitation, pollution, and public health problems. As the Brundtland Commission noted, the growth of urban populations has often preceded development of the housing, infrastructure, and employment needed to sustain that population. In the 10 years from 1985 to 1995, a period during which the Brundtland report was published, the world saw the addition of the equivalent of 81 cities with populations of over a million people. 12 There have been dramatic and successful efforts to improve water, air, and sanitation services in developing world urban centers during this period. But the number of city dwellers without adequate water and exposed to poor sanitation and air pollution has grown as urban population growth has outpaced investments. 13 The health consequences of inadequate drinking water and poor sanitation services are felt most strongly by the poor.

Among the major challenges of urban development is air pollution, produced largely by the interactions of hydrocarbons and nitrogen oxides produced in industrial and transportation processes as well as by heating and cooking. 14 While investments in pollution control in industrialized countries have led to air pollutant reductions in many cities, air pollution is still a major problem in the developed world. In the United States, some 80 million people live in areas that do not meet air quality standards, and in many European cities air pollutant concentrations are also higher than the established standards. 15 At the same time, air quality in the cities of the industrializing world has worsened. Worldwide, the World Health Organization estimates that 1.4 billion urban residents breathe air that fails to meet WHO air quality standards. 16

Access to water and sanitation services also present enormous challenges to rapidly growing cities. Despite concerted efforts during the 1980s, designated the "International Drinking Water Supply and Sanitation Decade" by the World Health Organization, in 1990 about 200 million urban dwellers were without a safe water supply, and around 400 million were without adequate sanitation. 17 In the largest cities of the industrializing world, the poorest populations in the slums and at the city margins tend to have the least access to safe water. For example, in Sao Paulo, nearly 20 percent of the city's population lived in slums (called favelas) in 1993; around 85 percent of the favelas had no sewerage service. 18 Innovative technological opportunities—such as condominial sewers, 19 improved ventilated pit latrines, various lower cost sewage treatments, and approaches to reuse of municipal wastewater—are available to provide flexible and cost-effective services and are being used with success in some regions, but have yet to be widely applied. Also, in some areas, such

The population of Mexico City is approximately 20 million and growing, with much migration from rural areas. The continued growth has placed high demand on an unstable water supply network, designed to extract most of the city's water (72 percent) from the Mexico City Aquifer, which underlies the metropolitan area. Increasing land subsidence, groundwater contamination, and inadequate hazardous waste management have made the aquifer and water supply network vulnerable to contamination, posing risks to public health. A 1995 bi-national study of the problem was jointly undertaken by the Mexico Academy of Science, the Mexico Academy of Engineering, and the U.S. National Research Council. The study made recommendations on management of water supply through metering and pricing mechanisms, needed research, treatment of municipal wastewater prior to disposal, demand management approaches, a comprehensive groundwater protection program, a variety of water reclamation schemes, and possible institutional changes related to applying a new cultural perspective to the value of water in Mexico City. It is noteworthy that this comprehensive study recommended several approaches to improved management and conservation of water—and none involving further resource development.

as Mexico City (see Box 4.1), high-priority attention can be given to treatment of municipal wastewater as part of a comprehensive plan for improving the balance of water supply, water demand, and water conservation.

In 1900, there were only 16 cities with populations of 1 million or more; by 1994 there were 305 such cities—and of these, 13 had populations of greater than 10 million. 21 Most of this growth has taken place over the last 50 years. As described in Chapter 2, projections of population growth indicate that there will be nearly 7 billion urban dwellers by 2050. The most rapid expansion of high-density cities will be during the next several decades. This trend presents an opportunity to build modern, state-of-the-art facilities and to provide efficient infrastructure systems for the delivery of services. Maintenance and improvement of the quality, adaptability, reliability, cost-effectiveness, and efficiency of these systems are critical to established and aging cities as well. Realizing these opportunities, of course, depends on the foresight, will, capital, and incentives to take advantage of them. Seizing these chances would help to meet the future needs for housing, while reducing the footprint on the land, and, with increases in efficiency, the needs for energy and materials.

Agriculture and Food Security

The task of feeding an additional several billion people in the next 50 years is an unprecedented challenge, one fraught with biophysical,

environmental, and institutional hazards and roadblocks. Food demand will rise in response to population growth, growth of per capita income, and attempts to reduce the undernutrition of the very poor. By 2050 food demand could almost double to accommodate the projected population depending on the growth of income and the nature of diet. 22 But the paths to meeting these demands are far from clear. The challenge of feeding this population and reducing hunger requires dramatic advances both in food production, which we focus on here, and in food distribution and access. Production of the globally traded staples (maize, wheat, rice, soybeans, poultry, and swine) will be driven by new technologies already in or rapidly moving toward the private sector. 23 The emergence of genetic biotechnologies, protected by intellectual property rights and patenting, is attracting enormous private investment. Global markets and the movement of private capital into processing and marketing have increased handling efficiencies. Market balance among rich and poor countries, monopoly control, and environmental impacts due to the scale of operations all remain major issues. Industrial technologies are major engines for continued growth. Prospects for growth in production of the numerous "minor" or regional staples, such as cassava, yams, potatoes, grain legumes, millet, white maize, sorghum, and other crops critical to food security for a large segment of the world's poor, are not nearly as optimistic. Such growth is not now in progress nor is it projected for the foreseeable future. The Brundtland Commission recognized that a great strategic effort would be required to meet the challenge of feeding a growing population, yet the past 10 years have seen a reduction in resources for the international agricultural research community along with indicator values that increasingly show world capabilities for increasing food production are stagnating. 24

During the last half century, the dramatic gains in crop production that have occurred almost worldwide (except, in particular, Sub-Saharan Africa) have come from four interrelated sources: expansion of cultivated land, increased use of fertilizer and pest control chemicals, expansion of irrigated area, and the introduction of high-yielding crop varieties. The continued gains in agricultural production required in the 21 st century will be considerably more difficult to accomplish than in the immediate past. 25 There are currently difficulties in raising yield ceilings for the cereal crops, despite a history of rapid yield gains in the past. Incremental response to increases in fertilizer use has declined in many areas. Expansion of irrigated land has become more costly and has slowed dramatically in the past two decades. Because of rising demand for water with growing urbanization, water supplies are increasingly less available to agriculture. 26 The loss of soil fertility and degradation of agricultural lands due to inappropriate management, climate change, and other factors

has been reversed in some agricultural areas but at the same time has become an important issue in many other areas. 27 For example, the expansion of irrigated area, combined with the failure to design and implement incentive-compatible irrigation management, has contributed to waterlogging and soil salinity. Reductions in agricultural productivity due to air and water quality changes, some of which emanate from agriculture itself, have also raised concerns. 28 Increasing pest problems because of increasing pesticide resistance stemming from misuse of chemical pesticides, the decimation of natural enemies, and the invasion of new pests are also topics of concern. 29 Any one of these problems alone could impede efforts toward increasing production and yield. Together, these biophysical factors threaten achieving a successful transition toward sustainability.

Perhaps more important still are the threats associated with inadequate investment in the agricultural sector now—for research, education, technological developments, and transfer of knowledge and information to the developing world. 30 Local agricultural research capacity, local public and private capacity to make knowledge, technology, and materials available to producers, and the schooling or informal education of farmers and farm workers are all required for sustained growth in agricultural production. The international agricultural research system and the private sector research community are important sources of new knowledge and new technology, 31 but these systems are effective only in the presence of viable national and regional research systems capable of adapting new technologies to local agroclimatic conditions. Finally, productivity and sustainability depend on the knowledge that farm people bring to the management of their resources and production; education is critical. Institutions must make advances in the technology and management approaches available to farmers, and local financial credit and labor markets must function effectively.

Limitations of institutional capacity may be one of the reasons why Sub-Saharan African countries have failed to realize the gains in productivity that have been achieved by green revolution technology in South and Southeast Asia and Latin America. Institutional limitations, along with political instability, complex land tenure systems, and unique agroclimatic environments may all contribute to the apparent lag in productivity gains there. Understanding the dimensions and factors controlling this failure is critically important because Sub-Saharan Africa is the major region where growth in agricultural production is running behind population growth. One of the major challenges of the sustainability transition will be to develop new and appropriate approaches to improve food production in this region.

If the development of international and national agricultural research

systems is maintained, there are many opportunities to enhance our ability to respond to growing world food demand at the same time that we sustain resources and the broader environment. Improved varieties and better management could lead to increases in yield, at least up to fundamental limits set by plant physiology. Scientific and technological breakthroughs, particularly in the area of biotechnology, could over the long term lead to a lifting of the yield ceilings that have been set by the green revolution technologies. 32 Biotechnology is still in its infancy, and its application is controversial. Nevertheless, both the science and the technology are advancing rapidly, and the development and diffusion of biotechnologies may play an important role in increasing and sustaining agricultural production in many areas of the world.

While biotechnology holds substantial hope for improving crop production and efficiency of resource use, many other opportunities exist to increase and sustain food production while decreasing environmental consequences. Protection and careful utilization of soil, water, and biological resources underlie many of these opportunities, and promising management approaches have already been developed and successfully used in some places. For example, integrated nutrient management, like integrated pest management, takes advantage of the ecological processes operating in soils and crop ecosystems and uses them in combination with industrial inputs to optimize productivity and reduce pesticide and nutrient spread. 33 Ecologically based pest management takes advantage of biological diversity to reduce the need for pesticide use. Increased use of efficient irrigation systems will conserve and maintain water supplies and lessen competition with urban and other uses. 34 In breeding programs, increasing attention to flexibility and genetic diversity of crop plants can increase the ability of the agricultural sector to respond to climate and other environmental ''surprises." 35 The development of management systems and breeding programs for regional staple crops could also enlarge the food security basket for the poor in many regions. For these opportunities to be useful, new knowledge is needed about both the biophysical crop system and the sociological barriers to implementation. Taking advantage of these opportunities will help to provide the food needs for future human populations, while preserving water in areas of scarcity and reducing pressure on the land.

Over the next two generations, the global market for goods and services is likely to increase two- to four-fold (Chapter 2 and Chapter 3 appendix). With that increase will come an enormous demand for materials. Avoiding the waste, pollution, and environmental disruption now

associated with the extraction, processing, and consumption of materials, and reducing energy and water inputs into industrial production, are the foremost issues during the transition to sustainability. In the 10 years since the Brundtland Commission's challenge to industry to produce more with less, there have been substantial improvements in reducing and reusing materials by both industry and consumers. But the trend toward increasing material use efficiency and dematerialization, discussed in Chapter 2, must be accomplished universally and at much faster rates if it is to offset the rapid increases in production forecasts for the next decades.

The demand for materials to meet expanding markets may in some cases be limited by resource shortages. However, given a supply of energy at competitive prices, the increased demand most likely will result in substantial materials substitutions. Absolute materials shortages are unlikely, at least in the next several decades. 36 The materials challenge, instead, is likely to be associated with pollution due to the "leakage" of materials from the manufacturing, processing, and consumption systems. 37 Such leakages include not only those of nontoxic but valuable materials wasted in the production and consumption streams, and also those of a variety of toxic and hazardous substances used in industrial production. More than 12 billion tons of industrial waste are generated in the United States each year; and municipal solid wastes, which include consumer wastes, are generated at the rate of 0.2 billion tons per year. 38 Clearly, such residual production must be brought under control, or better yet, prevented.

Again, some of these leakages represent not just loss of valuable materials but of substances presenting specific toxicological and ecological threats. More than 100,000 industrial chemicals are in use today, and the number is increasing rapidly in the expanding agriculture, metals, electronics, textiles, and food industries. 39 Some of the effects of these chemicals are well known, but there are insufficient data for health assessment for the majority of these chemicals. Some, like the persistent organic pollutants, are widely distributed beyond their points of origin and concentrate as they move up the food chain. Human exposure to these pollutants can cause immune dysfunction, reproductive and behavioral abnormalities, and cancer. Also, heavy metals such as lead, copper, and zinc can reside in the environment for hundreds of years; human exposure to them can lead to kidney damage, developmental retardation, cancer, and autoimmune responses. Nevertheless, global production, consumption, and circulation of many toxic metals and organics have increased dramatically in the last half century because of their utility in many industrial activities, though production began to level off in the early 1970s and emissions began to decline (Figure 4.1). But numerous opportunities exist to reduce material usage as well as

environmentally harmful leakages. Refurbishing or remanufacturing used products or their parts, changing the nature of the product used to a new condition for accomplishing the same purpose (usually provision of a service instead of the product), 40 and recycling and reuse of used subsystems, parts, and materials in products all generally require much less energy, capital, and labor than the original creation of the materials and products. In addition, such processes minimize environmental damage. There is a clear and obvious case for us to examine what we know about the role of industry in the flow of materials, energy, and products, the effects of market forces (e.g., on recycling), and the possibilities for modifying these flows through the system, for more efficient energy use, decreasing environmental damage, and improving the efficiency of providing goods and services.

In recent years, many industries have moved to increase the efficiency of using materials in processing and to control the loss of scrap and other wastes from the production cycle. For example, one corporate plan for introducing customer return programs (copier machines as well as disposable parts like toner cartridges for copiers) led to remanufactured equipment from 30,000 tons of copying machines, thereby reducing both the load on landfills and the consumption of raw materials and energy. 41 Control of leakage is also a means of cost control for industrial production, and there are precedents for the creation of profitable industrial operations based on recapture of consumer materials. Approaches that control the production of garbage and reduce leakage of materials at the consumer end have also been used in some parts of the world. Product recycling has dramatically increased and design of products to facilitate recycling has become a tenet of "industrial ecology." 42 Despite these successes, there is a worldwide loss of valuable materials because of leakage. Thus, one significant set of challenges rests in the development of incentives for higher efficiency and lower leakage from producer and consumer systems. Among such actions would be (1) the provision of incentives to identify heretofore unrecognized economic value of materials; (2) the elimination of historical market distortions (e.g., subsidies) that may interfere with choices that would be more sustainable in the absence of the distortions; and (3) the provision of incentives to move to competitively priced energy whose production does not result in the release of carbon dioxide (i.e., through the use of noncarbon sources or carbon sequestration).

Beyond the challenges related to the reduction and elimination of industrial wastes, the rapidly changing industrial trajectory carries with it the general problem of anticipating problems in new industries and of projecting the dynamics of employment into a future with many more people. The past decade has seen a shift to increasing employment and

Figure 4.1 Global production and consumption of selected toxic metals, 1850-1990. The figure indicates that within the last 20 years, emissions of lead, copper and zinc have begun to decline. Source: Nriagu (1979). Updated in Nriagu (1996). Courtesy of the Macmillan Magazines, Ltd. and the American Association for the Advancement of Science.

productivity within industry. Nonetheless, the current trends toward production of more by fewer people could lead to persistent unemployment of an expanded population, a spectre not foreseen by the Brundtland Commission. 43

As the preceding paragraphs make clear, industry is faced with many enormous challenges and much responsibility for reducing and preventing environmental problems related to industrial wastes and leakages. At the same time, however, it also faces a tremendous opportunity for massive market expansion, the development of new technologies (and, therefore new product possibilities, even beyond the products for which the technologies were developed), and the creation of totally new markets based on the requirements of new customers in industrializing countries. There is also great potential for the industrializing world to skip over transitional technologies to new, cleaner technologies without experiencing the same environmental degradation as the industrialized world due to the use of more traditional technologies. The capital, barriers, and

incentives to diffusion must be understood and addressed to meet this potential. Meeting the coupled objectives of designing and producing for product competitiveness and for environmental protection and resource conservation is the critical challenge to industry in the next century, and the resulting effects will be felt in all other sectors. Involving industry directly in these challenges and in finding the means to meet them is an opportunity to bring creative actors into the process voluntarily, as well as under incentive and regulatory forces.

Energy is a critical ingredient in most activities of industrialized and industrializing economies. It is required to extract, process, fabricate and recycle materials, to heat and cool homes and places of business, to produce foods, to move people and goods, and to power communications. For a successful transition to sustainability, energy sources must grow at sufficient rates to maintain other energy-dependent activities, yet at the same time must impose few if any environmental costs in the form of local air pollution, carbon dioxide, toxic residuals, and despoiled land. The world will need to find a way that allows 9 billion people or more to enjoy a lifestyle that requires energy while at the same time protects and sustains human health and the health of the biosphere from local to global scales.

Numerous environmental hazards, including climate change, acidification of water and soil, and air pollution, stem from our dependence on fossil fuel energy. Alone or together, these significant and accumulating hazards can influence a transition toward sustainability. These environmental risks, rather than any limitations of fossil fuel energy resources, are the most significant factors facing the energy sector today. In most industrialized nations, emissions controls are beginning to bring local and regional pollution under control. In contrast, in much of the developing world, local and regional pollution poses serious and growing problems. Regarding global atmospheric changes, in the 10 years since the Brundtland report, much of the world has come to acknowledge the threat from greenhouse gas emissions via international conventions and agreements, but with few exceptions serious constraints on emissions have not been implemented (see Chapters 1 and 2).

For years there have been concerns about limited reserves of fossil fuel. Modern estimates, however, suggest that despite extensive past extraction, the world has very large reserves. In the absence of "externality" taxes (taxes imposed on these fuels to cover their environmental costs) or other policy changes, fossil fuels are likely to remain abundant and cheap for decades to come. A number of direct and indirect subsidies

to energy suppliers and technologies have shaped and continue to shape the evolution of the current fossil energy system. Today, most energy is derived from fossil fuels: coal, oil, and natural gas. Oil is primarily used to power transportation. Recent trends in electric power production, especially in the industrialized world, show a move away from coal toward natural gas (see Chapter 2).

Fossil fuel combustion is the source of critical air pollution problems throughout the world. 44 In the leading industrialized countries, emissions of primary particulates and oxides of sulfur and nitrogen are now being aggressively controlled such that local and regional air quality has improved considerably in recent decades, although standards are frequently not met and the adequacy of some standards is still uncertain. 45 At the same time, these problems are increasing in many developing regions. Problems with secondary pollutants formed though photochemical reactions and with long-range transport continue to be significant. For example, while sulfuric acid deposition in the United States has been reduced primarily through the reduction of sulfur emissions from combustion, nitric acid deposition has not declined (Figure 4.2). Globally, CO 2 emissions from fossil fuel combustion continue to grow and threaten to produce notable climate change by modifying the planetary heat balance (see Chapters 2 and 3). While a shift from coal to natural gas may reduce carbon dioxide emissions, emissions of a still more potent greenhouse gas, methane, could result if natural gas energy systems are not leak-free.

Nonfossil energy sources circumvent the serious local, regional, and global air pollution problems of fossil fuels, but each holds its own set of limitations and challenges. 46 Most available sources of hydroelectric power have already been developed in industrialized countries. A number of developing economies such as China, Nepal, and Brazil have large-scale hydroelectric development programs in progress, but concerns about environmental effects on river systems have slowed these programs' growth. The growth of nuclear power has slowed in many parts of the industrialized world due to high costs, public concerns about nuclear wastes, regulatory complications prompted by environmental and safety debates, security issues, and philosophical concerns. However, developing countries such as China and Korea continue to have active programs of nuclear power. Various renewable energy systems have been developed to drawn on such sources as wind, sunlight, and biomass fuels. While these systems show promise, they have had difficulty making headway, even with significant subsidies, in the face of abundant and low-cost fossil fuel.

Opportunities can be seized to increase efficiency and develop or utilize new technologies to reduce the threats associated with meeting the energy needs of the world's population. The efficiency of industrialized

Figure 4.2 Trends in SO 2 and NO x emissions in North America and Europe (OECD countries only), 1980–1994 (excludes Australia, Greece, Japan, Mexico, New Zealand, and Turkey due to incomplete data). Source: OECD (1997), Swedish Secretariat on Acid Rain (1996). Courtesy of WRI (World Resources Institute).

economies' energy use to produce goods has been gradually improving (Chapter 2), but energy-efficiency opportunities have only partly been exploited. There are also many new technologies (e.g., photovoltaics, electric cars) that may help provide the energy the world needs with far fewer adverse local, regional, and global environmental impacts. As environmental regulations, including emissions fees and emission trading regimes, come into play, market incentives will induce the adoption of cleaner technologies. This is already apparent in the switch of many electric power systems from coal to gas. If this process is to continue and accelerate, ways must be found to reflect directly or indirectly the full environmental costs of fossil fuel in the market place. This can be done directly with fossil fuel taxes or indirectly through mechanisms such as fuel-efficiency standards for motor vehicle fleets and green energy requirements on electric power systems.

While there are many cleaner energy technologies and more efficient end-use technologies now available, the current stock of technology is not sufficient to support the transition to a sustainable energy system. The market is most likely to commercialize technologies that have already been developed to the point where they show short- to medium-term promise for commercialization. If the energy system is to undergo the

major transition that will be required to meet the needs of the world without serious environmental consequences, a much larger investment will be needed in energy-related basic technology research. 47 Traditional government R&D will be unlikely to meet all of this need, so new mechanisms must be found to support such research. Some of these mechanisms are discussed in Chapter 6. In designing and evaluating institutions and incentives to encourage sustainable energy technologies, it is important to carefully examine their objectives and implications at the system level, using such strategies as material balance modeling and economic input-output analysis coupled with considerations of environmental loadings. Without such a systematic assessment, polices that appear to promote better solutions may in the long run have serious undesirable consequences, such as problems in recycling and disposing new materials.

Living Resources

The human population rests its requirements for food, shelter, and other essential goods on the shoulders of earth's living and other resources. The grassland, forest, freshwater and marine ecosystems of the world provide such goods as food, timber, forage, fuels pharmaceuticals, and precursors to industrial products. The harvest and management of these resources form the base of enormous economic and social enterprises as well. In addition, ecosystems and the species within them provide vastly underrecognized services such as recycling of water and chemicals, mitigation of floods, pollination of crops, and cleansing of the atmosphere. 48 Humans have enjoyed these goods and services for millennia, and in many regions it has been possible to make use of them without degrading their long-term viability or the life support systems they influence. However, our ever-intensifying use and misuse of ecosystem services is now doing much to imperil them, and, consequently, our own long-term welfare. Moreover, the indirect consequences of the other human endeavors discussed in this chapter also exert enormous pressure on these services. In 1987, the Brundtland Commission described the challenge of managing living natural resources for sustainable development as one of implementing conservation measures in the national interest. Among the most critical challenges of the transition to sustainability over the coming decades will be to develop approaches that sustainably manage both the resources societies use directly and the benefits that we accrue indirectly from the world's living capital. 49

Human use of land to obtain goods and services is one of the most significant alterations of the global system. Land transformations and use in forestry, grazing, and agriculture have modified nearly 50 percent of the earth's land surface. 50 Agriculture and urban areas cover 10 to 15 per-

cent, pastures cover 6 to 8 percent, and substantially more land is dedicated to forestry and grazing systems. Harvesting of wood for fuel and fiber and the clearing of land for agriculture removed on the order of 13 million hectares of forest per year between 1980 and 1995. 51 Human alterations of freshwater and marine systems (especially coastal zones and fisheries) have also been great in scale and effect. For example, approximately 50 percent of mangrove ecosystems globally have been transformed or destroyed by human activities, and humans use about 8 percent of the primary production of the oceans. 52 Beyond direct use, human activities affect all lands and waters through their effects on the atmosphere and water systems, biogeochemical cycles, and biotic systems. 53 Elevated CO 2 affects all ecosystems; air pollution and acid deposition affect even those we think we are protecting.

The nonsustainable use of living resources carries a number of critical consequences for humans and the other species of earth. Most obviously, overuse and misuse lead to a reduction or loss of resources and thus directly affect human well-being. For example, a number of recent analyses have raised alarms over the nonsustainable management of ocean fisheries (see Chapter 2). Recent assessments 54 suggest that half of the world's fish stocks are now fully exploited, nearly a quarter are overexploited, and many fisheries have collapsed. Fisheries provide direct employment to about 200 million people, and account for 19 percent of the total human consumption of animal protein. 55 Their degradation has grave implications for economic and food security.

Equally important, however, is the fact that the misuse of resources like fisheries, forests, grasslands, and agricultural systems has tremendous unintended effects on the functioning of ecosystems more generally and on the services these ecosystems provide. For example, land transformation is the primary driving force in the loss of biological diversity worldwide. Biotic extinction rates have increased 100 to 1,000 times preindustrial rates and species are being driven to extinction thousands of times faster than new ones can evolve. 56 With loss of biological diversity and alteration or loss of the ecosystems that support them, many social and economic consequences follow. For example, land use changes in watersheds can seriously degrade the water purification processes of soil/plant systems at enormous cost to urban communities. 57 Degradation and loss of wetlands can expose communities to increased flood and storm surge damage. Decimation of pollinating insects has had important negative consequences on yields of particular crops. 58 Introductions and invasions of nonnative species such as killer bees, fire ants, and zebra mussels through human activities cause enormous damage to living resources and threaten human health.

Clearly, at the heart of the sustainability transition is the challenge to

manage all of the earth's ecosystems to maintain populations, species, and ecosystems in the face of human domination, and thereby to sustain the goods and services the ecosystems provide to humans. Reducing population growth and levels of consumption and waste are central to meeting this objective because by doing so societies relieve some of the pressures now experienced by ecosystems. Beyond this is the need to develop holistic management approaches that take into consideration the interacting components of ecosystems and landscapes rather than simply focusing on a single species or product. Experiments in ecosystem management are in progress in fisheries and forests around the world, and we can draw knowledge from these experiments for social learning. Finally, the management of living resources must acknowledge and plan for the links among human and natural systems at the landscape and regional scales; and research, management, and development plans must integrate intensive land and water uses (e.g., for agriculture and cities) in the context of areas managed for conservation, water catchments, and purification, air quality services, and recreation purposes. 59

Interaction Perspectives

Over the past several decades, most decision making and much research has chosen to treat environmental problems and the human activities associated with them in relatively narrow, discrete categories such as "soil erosion," "fisheries depletion," and "acid rain." This narrow framing of environmental problems is evident in our reviews of "Environmental'' and "Development" perspectives presented earlier in this chapter, and in the organization of environmental ministries, regulation, and research administration around the world. Both understanding and management have benefited substantially from these narrowly focused traditional approaches. Much has also been missed, however. It has become increasingly clear that much of the workings of the world, and the challenges and opportunities those workings entail for a transition to sustainability, lie in the interactions among environmental issues and human activities that have previously been treated as largely separate and distinct. Recognition of the importance of such interactions has been central to emerging international research programs such as those of the International Geosphere-Biosphere Program (IGBP), the International Human Dimensions Program (IHDP), and DIVERSITAS. 60 Such recognition has even begun to emerge in international policy discussions, as exemplified by recent efforts of the UN Environment Program (UNEP), World Bank, and others to draw attention to the connections among global environmental issues and human needs. 61 Despite some progress in implementing these grand designs, however, research support and political action

remain largely confined within the narrow categories of traditional thinking.

Today and in future decades, emphasis will have to be given to the interactions among environmental problems. For example, no longer can we ask about the consequences of climate change on agricultural ecosystems; instead, we must ask about the combined effects of climate change, increased climate variability, elevated carbon dioxide, soil quality changes, crop management changes, and tropospheric and stratospheric ozone changes on crop productivity. Also, it makes little sense to ask how climate change affects one system (e.g., coral reefs), when other changes related to human activities (e.g., land use and urban, industrial, and agricultural effluents) act in concert with global changes to alter these systems. 62 Nor does it make sense to ask about the effects of elevated CO 2 on forest uptake and the storage of carbon when these can only be predicted by accounting for such changes as nitrogen deposition, land use change, air pollution, acidification, and climate change. 63 In the next decade we will see research and problem-solving shift in focus from single issues to multiple interacting stresses. 64

Threats from human activities will result in profound changes in future climate, earth chemistry, and terrestrial biological systems. Environmental transitions expected over the next 50 years and estimations of uncertainty are summarized by the Board in Table 4.3. These estimates reflect the consensus of a large group of international scientific experts based on evidence in the 1995 report by the Intergovernmental Panel on Climate Change (IPCC). The experts conclude with a high degree of confidence that the next 50 years will bring a warmer world, mainly at night; a cooler stratosphere; increased atmospheric water vapor; higher sea level and smaller glaciers. The atmosphere will contain higher concentrations of CO 2 , nitrogen compounds, hydrofluorocarbons (HFCs), and smog. Due to human activities, natural habitat will continue to degrade and to be invaded by exotics, while some plants will flourish as a result of increased CO 2 in the atmosphere.

Just as environmental threats and challenges operate interactively, they are caused by the activities of several sectors and have the potential to influence the transition toward sustainability in many sectors. In the following paragraphs, we discuss three integrative, interactive challenges. The changes underlying these challenges are cumulative and are likely to result in surprise.

The earth's water resources are influenced by almost all human activities, and water supports and links the sustainability of industry, en-

Expectations Of Global Environmental Change Over the Next 50 Years

1

global surface warming
stratospheric cooling
higher nighttime surface temperatures
decreased spring snowfall at higher latitudes and elevations
decreased glaciers in most areas
increased sea level
increased water vapor
global precipitation increase
ground temperature warming

increased CO2
increased methane
increased nitrous oxide
increased nitrogen compounds
increased tropospheric ozone
decreased HCFCs, decreased CFCs and increased HFCs2
decreased sulfate from combustion
increased biomass burning
increased biogenic sources, including pesticides
increased nitrogen compounds in soils
increased pollution of coastal regions
increased sediment loading in some regions
interactions with land use

loss and degradation of habitat
increase of drought stress on crops
increase of airborne pollution (e.g., ozone) on plants
increased CO2 induced crop productivity (assuming other factors are constant)
latitudinal and altitudinal expansion of plant species
increased soil salinity in some regions
longer growing season in some regions
loss of biodiversity

(table continued on next page)

(table continued from previous page)

enhanced arctic winter surface warming
winter hemisphere precipitation increase
subtropics precipitation decrease
tropics precipitation increase
arctic precipitation increase
changes in precipitation magnitude
reduced polar sea ice
increased drought probability in mid-continental regions
regional surface warming in most regions

decreased stratospheric ozone
increased heavy metals
increased endocrine disrupters

spread of exotic species
spread of pests
decreased global forests

increased climate variability
changes in precipitation frequency
regional surface cooling in some regions
changes in extreme weather events (e.g., severe storms)
increased intensity and frequency of tropical storms (e.g., hurricanes)
increased high, mid-level, convective clouds
slowing ocean circulation

increased ocean pollution

 

changes in freshwater runoff
change in ENSO3 magnitude and frequency

increased volcanic activity

 

1 Changes in terrestrial biological systems will be regional and highly variable.
2 (HCFC) hydrochlorofluorocarbon, (CFC) chlorofluorocarbon, (HFC) hydrofluorocarbon.
3 (ENSO) El Niño-Southern Oscillation.

ergy, human health, urban development, agriculture, and the diversity and functioning of biological systems. Like energy, the availability of water is a critical resource for nearly all human activities. At the global level, the supply of fresh water has been dramatically altered by these activities. Water was not identified by the Brundtland Commission among its "Common Challenges," but, clearly, significant challenges related to water confront future populations. As noted in Chapter 2, although there have been slowing water withdrawals, water quality continues to be a concern, particularly in developing countries, and water supply can be regionally or locally scarce.

Global numbers suggest adequate per capita water worldwide. But global numbers are deceiving—variable distributions of fresh water lead to great disparities in access to water, with scarcities in some areas and excess supply in others. Thus, in a number of regions, water is in short supply relative to needs, in some cases because of insufficient amounts and in others because of poor water quality. As regional populations grow and urban systems develop, these stresses are accelerating with conflicting and increasing demands for water supply. Some estimates suggest that a dozen or more nations in semi-arid climates cannot currently provide minimum per capita water requirements for their citizens and that many more will fail to do so in the future as a result of climate change 65 (see Table 4.4). It should be noted that comparing water availability by nations is suggestive but neglects options for management and sharing among nations as explained below. In many parts of the world, conflicts over water rights are sources of continuing social and economic stress. Also, as noted in the "Cities" section, many people in urban and rural areas do not have access to clean drinking water or sanitation services, and some 250 million new cases of waterborne disease are reported each year, resulting in 5 to 10 million deaths. 66 Thus, water scarcity and water degradation are growing threats to a transition to sustainability, and a major challenge is the need to supply both more water and cleaner water to the growing population.

The demands for and status of water resources reflect interactions across all sectors. For example, the price of energy influences water options; increases in the cost of energy increase the cost of groundwater extraction, pumping, and irrigation operation. In turn, demands on water influence energy options. Increasing agricultural production, either by increasing yield or land under production, will carry with it increased demand for irrigation; and, at the same time, rapidly urbanizing populations will demand greater water for consumptive purposes, increasing the potential for conflicts about the balance between consumptive and nonconsumptive water uses. As more marginal water supplies are used

Per Capita Water Availability Today and in 2025, Selected Countries

   

Algeria

750

380

Burundi

660

280

Cape Verde

500

220

Comoros

2040

790

Djibouti

750

270

Egypt

1070

620

Ethiopia

2360

980

Kenya

590

190

Lesotho

2220

930

Libya

160

60

Morocco

1200

680

Nigeria

2660

1000

Rwanda

880

350

Somalia

1510

610

South Africa

1420

790

Tanzania

2780

900

Tunisia

530

330

   

Barbados

170

170

Haiti

1690

960

   

Peru

1790

980

   

Cyprus

1290

1000

Iran

2080

960

Israel

470

310

Jordan

260

80

Kuwait

< 10

<10

Lebanon

1600

960

Oman

1330

470

Qatar

50

20

Saudi Arabia

160

50

Singapore

220

190

United Arab Emirates

190

110

Yemen (both)

240

80

   

Malta

80

80

Note: Water use of 500 m3 per person per year might suffice in a semi-arid society with extremely sophisticated water management.
Source: Reprinted from Gleick (1992). Computed from UN population data and estimates; water availability data from WRI (1990). Courtesy of Cambridge University Press.

for irrigation, the need to manage for salinity and drainage will intensify to avoid negative impacts on agricultural productivity.

Increased removal of water from surface water systems, whether for agriculture, urban use, or industry, will potentially damage the functioning of the aquatic ecosystems and the marine systems from which they are taken and into which they empty. Damages to aquatic systems may, in turn, affect the quality and quantity of water available for human use, ultimately influencing the spread of disease and toxic water. Competing human demands will lead to a decrease in the amounts of water available for natural ecosystems, including highly valued lakes, riparian zones, and watersheds. Deforestation and urban developments alter runoff and groundwater recharge patterns. Moreover, pollutants including nitrates from agricultural fertilization and acidic deposition; metals such as copper, cadmium, zinc, and lead from mining; industrial and agricultural activities; and organic pollutants from industrial and agricultural activities have increased in many of the freshwater and coastal marine ecosystems of the developed world. 67 Although reduction of a number of these pollutants has been observed in a number of lakes and rivers, 68 the negative consequences of these changes for aquatic ecosystems and the diversity of biota they hold are enormous. The feedback effects to human welfare argue for the necessity of management approaches that explicitly protect aquatic ecosystems for the services they provide to humans (Table 4.5).

The likely effects of climate change on regional water balances are uncertain. Water supply could be decreased through increased evapotranspiration (caused by warmer air temperatures), especially in areas that already experience arid and semi-arid climates. In other regions, precipitation is likely to increase; depending on the timing and amount of change, water storage and control systems may come under considerable strain. Elsewhere, water resources could prove more plentiful. Rising sea level can produce saltwater intrusion into freshwater reservoirs. In some regions, current reservoir and water-retaining systems may be unable to maintain water supply during drought periods. Finally, dramatic shifts in ocean circulation patterns, should they occur through global climate change, could have major impacts on regional rainfall patterns and climate.

Integrated Strategies for Water Management

Many current technologies can be employed to increase the efficiency and effectiveness of water use, but for those technologies to be applied and new ones to be developed, a new vision of water management will be required. For example, one new paradigm accounting for trends in water

Threats to Aquatic Ecosystem Services from Human Activities

Human Activity

Impact on Aquatic Ecosystems

Values/Services at Risk

Dam construction

Alters timing and quantity of river flows, water temperature, nutrient and sediment transport, delta replenishment; blocks fish migrations.

Habitat, sports, and commercial fisheries; maintenance of deltas and their economies

Dike and levee construction

Destroys hydrologic connection between river and floodplain habitat

Habitat, sports, and commercial fisheries; natural floodplain fertility; natural flood control

Excessive river diversions

Depletes streamflows to ecologically damaging levels

Habitat, sports, and commercial fisheries; recreation; pollution dilution; hydropower; transportation

Draining of wetlands

Eliminates key component of aquatic environment

Natural flood control, habitat for fisheries and waterfowl, recreation, natural water filtration

Deforestation/poor land use

Alters runoff patterns, inhibits natural recharge, fills water bodies with silt

Water supply quantity and quality, fish and wildlife habitat, transportation, flood control

Uncontrolled pollution

Diminishes water quality

Water supply, habitat, commercial fisheries, recreation

Overharvesting

Depletes living resources

Sport and commercial fisheries, waterfowl, other living resources

Introduction of exotic species

Eliminates native species, alters production and nutrient cycling

Sport and commercial fisheries, waterfowl, water quality, fish and wildlife habitat, transportation

Release of metals and acid-forming pollutants to air and water

Alters chemistry of rivers and lakes

Habitat, fisheries, recreation

Emission of climate-altering air pollutants

Has potential to make dramatic changes in runoff patterns from increases in temperature and changes in rainfall

Water supply, hydropower, transportation, fish and wildlife habitat, pollution dilution, recreation, fisheries, flood control

Population and consumption growth

Increases pressures to dam and divert more water, drain more wetlands, etc.; increases water pollution, acid rain, and potential for climate change

Virtually all aquatic ecosystem services

Source: Daily (1997). Courtesy of Island Press.

withdrawals has the objective of increasing the productive use of water by increasing the efficiency of meeting needs and allocating water wisely among different uses. 69 Several other strategies that hold promise for better integrated water use and planning recognize the interconnected nature of sectors and activities of humans and life support systems. Strategies for watershed management go beyond the typical framework of hydrology and engineering to consider water resources in the context of interacting physical, biological, and chemical systems that control water cycling and use at a landscape scale. These strategies take into account land use, water quality, and ecosystem processes and protection, as well as urban and economic requirements. Local examples of watershed management abound. On larger scales, work on the Chesapeake Bay and the Columbia Basin 70 provides particularly insightful treatments of the challenges and opportunities for sustainability and adaptive management.

Regional water planning also takes a watershed perspective and seeks an explicit allocation of watershed resources to a mix of water applications, including withdrawals for agriculture, industry, and urban use, and in-stream activities such as waste assimilation, ecosystem and species maintenance and preservation, and recreation. For regional water planning to work, major changes in the way water is valued, allocated, and managed will be required. Regional planning must look seriously at such issues as restructuring agriculture for more efficient use of water, dramatically reducing outdoor urban water use, particularly in arid and semi-arid areas, increasing recycling, and determining and providing environmental water requirements (e.g., for protection of wetlands, fisheries, and endangered species). A number of studies have shown that water is chronically overused because it is underpriced. 71 Pricing policies that reflect the cost of water for particular uses at particular times and that encourage more efficient use and adaptation of conservation, reuse, and recycling approaches will be crucial. Meeting some of these objectives may be exceedingly difficult in poor regions. Changes in approaches to water-related regulation, education, laws, markets, and information dissemination also will be necessary. In addition, heightened efforts to diffuse available technology to all regions without access to appropriate technology are necessary, as are training and institutional arrangements that make their use possible.

Atmosphere and Climate

Changes in atmospheric chemical composition and chemistry also reflect the activities of multiple human endeavors, as well as natural processes. The cumulative and interactive consequences of gas emissions associated with industry, fossil fuel consumption, and agriculture are

linked via atmospheric circulation and chemistry, and the influence of those chemical and physical interactions is felt from regional to global scales. Lessons from the past tell us that we cannot solve urban air pollution problems without evaluating the multiple gases from multiple sources that together regulate air chemistry and pollution. In the case of urban smog in the United States, for example, a decade or more of regulation of hydrocarbons emissions from industrial processes failed to improve air quality; recognition and regulation of the nitrogen oxides emitted from automobiles is now seen as an additional critical factor in controlling pollution. 72 Moreover, while we once thought of smog and tropospheric ozone production as an urban-scale phenomenon, it is now clear that it can be regional in scale. For example, studies in the southeastern United States have indicated that urban emissions of hydrocarbons (volatile organic compounds, VOCs) and nitrogen oxides (NO x ), in conjunction with nitrogen oxide emissions from the agricultural sector and hydrocarbon emissions from natural forests, combine to affect regional-scale pollution events (Figure 4.3). 73 Such broad-scale pollutant levels may feed back to reduce agricultural productivity 74 as well as combine to impair human health and the health of natural ecosystems.

Atmospheric changes that were once characterized as local to regional in scale have now been recognized for their role in global atmospheric and climatic change. Sulfur aerosols emitted from a variety of combustion processes are a source of acid deposition and have been under regulation for the last 30 years. Only recently has it been shown that those aerosols that form regionally may have resulted in an increase in earth's reflectance sufficient to offset some of the effects of greenhouse gas increases. 75 Similarly, burning associated with land use changes such as deforestation or agriculture, alone or in combination with industrial air pollution, can have tremendous impacts on the health of people and ecosystems. Fires associated with tropical deforestation and burning for agricultural purposes emit carbon, nitrogen, and sulfur gases into the atmosphere, where they undergo chemical reactions and lead to the production of tropospheric ozone and acidic precipitation. Consequently, high-ozone episodes and acid rain are experienced by people and ecosystems in areas far removed from urban activity. 76

The interaction of multiple atmospheric changes also holds surprises for the regional and global system. For example, the deposition of compounds of nitrogen, a regional change produced by intensive agricultural and combustion processes, 77 may interact with elevated atmospheric CO 2 concentrations, a global-scale change, to affect the ecological and biological responses of terrestrial and marine ecosystems. Models suggest that increased nitrogen deposition in North America and Europe may increase the ability of forests to absorb carbon dioxide, 78 although a measurement

Figure 4.3 The evaluation of the effectiveness of VOC-based and NO x -based strategies for ozone pollution abatement is confounded by the potential significant contribution of VOC and NO x emissions from biogenic and other natural sources. In the figure, I-VOC and I-NO x is used to denote industrial VOC and NO x , respectively, and B-VOC and B-NO x is used to denote biogenic VOC and NO x , respectively. Source: Chamedies and Cowling (1995). Courtesy of North Carolina State University.

has not confirmed this. There is reason to doubt that this effect, if it occurs, would continue indefinitely. Long-term nitrogen deposition resulting from human activities is likely to damage vegetation, thereby decreasing its carbon uptake. Moreover, nitrogen deposition may also increase the emissions of other greenhouse gases. 79

Integrated Strategies for the Atmospheric Environment

As for water resources, managing for air quality and for the atmospheric environment requires a different strategy than societies have seen in the past decades. An approach is needed that accounts for the multiple

sources of materials released to the atmosphere, the natural and human-influenced processing of those materials, and the multiple and interacting effects on exposed systems. In the case of the atmosphere, the scale at which this integrated management must take place ranges from the urban airshed to the globe. New strategies must be developed to evaluate the understanding of factors driving air pollution and integrated solutions to air pollution, such as tropospheric ozone, at regional to continental scales. Consortia of local, state, and national and international agencies, industries, and scientists will have to come together to develop research and management programs with longer time horizons and greater spatial domains.

Efforts to improve regional air quality are now under way in the United States and Europe. Scientifically based implementation strategies that control emissions across large regions are being developed for areas of the United States. 80 Similarly, the European Community, in its Convention on Long-Range Transboundary Air Pollution, has developed integrated approaches to controlling sulfur and nitrogen emissions on the basis of both the location of sources and the sensitivity of deposition sites. 81

Global-scale atmospheric changes also require integrated solutions. Many activities (e.g., energy use, agriculture) cause concomitant changes in the atmosphere at local, regional, and global scales, and the tradeoffs and conflicts among alternative strategies must be evaluated across all scales. For example, the burning of natural gas (about 90 percent of which is methane), as opposed to other fossil fuels, has been encouraged because of its higher energy yield per molecule of CO 2 released in combustion and its lesser impact on regional air quality. On the other hand, methane is a very effective greenhouse gas (about 20 times as potent as CO 2 per molecule), so inadvertent emissions of methane used in energy production could offset benefits from reducing CO 2 emissions. Thus, as gas usage increases worldwide, loss rates from gas field drilling and from wellheads must be decreased along with losses from gas distribution lines. Another global methane source, rice paddies, are strongest emitters when fresh organic matter such as post-harvest stubble is plowed into the paddy soil. 82 Burning the rice stubble is an historical alternative to placing the rice stubble in the soil. Yet some areas such as Sacramento, California, in efforts to prevent regional air pollution, are requiring the stubble to be plowed back into the soil, thereby potentially increasing methane emissions in the following growing season. Thus, a balance is needed between decreasing pollution sources and increasing other environmental effects through responsive technological fixes—for example, balancing the risks of local air pollution against greenhouse forcing of global climate change.

Species and Ecosystems

A third area in which interactions and cumulative effects are exceedingly important is the biological component of the earth system. The welfare of species and ecosystems in a rapidly developing world is of critical importance in meeting the normative goals of a sustainability transition. These resources provide many of the goods and services needed to sustain human life—goods such as timber, forage, fuels, pharmaceuticals, precursors to industrial products, and services such as recycling of water and chemicals, mitigation of floods, pollination of crops, and cleansing of the atmosphere. Beyond the importance of these goods and services, the diversity of genes, species, and ecosystems is valued intrinsically, and loss of biological diversity is of major concern because it is irreversible. 83

The major forces or stresses on biological diversity and ecosystem functioning under our scenarios for the transition are likely to be simply an intensification of trends already seen today (see Chapters 2 and 3), with significant and mostly negative effects on the functioning of ecosystems. 84 Some appraisals of possible increases in agricultural productivity suggest that significant land areas could be returned to natural or more varied ecosystems. 85 Nevertheless, as the human population grows, land conversion for agriculture, extractive uses, and urban settlements exert tremendous influence on biological diversity and on the ability of ecosystems to act as biogeochemical buffers and water suppliers (as noted in Chapter 2). Increased use of biofuels could place even more pressure on land use. Atmospheric and water pollution due to industrial and agricultural activities can have effects on species and ecosystems as significant as they have on human health, and the resulting alterations in the functioning of ecosystems can also feed back to affect human well-being. For example, industrial, agricultural, and urban pollution that leads to eutrophication of estuaries can lead to the production of toxic algal blooms and fish kills, thus affecting industry and human health. Climate and atmospheric changes that result from industrial and agricultural activities will affect ecosystems in multiple and interacting ways. Some changes may have seemingly positive effects on ecosystems; for example, plant ''fertilization" due to elevated carbon dioxide concentrations in the atmosphere may lead to enhanced growth and carbon storage in some ecosystems and thus serve as a negative feedback to atmospheric and climate change, at least in the short term. Ultimately, however, climate and atmospheric changes will alter the structure and composition of ecosystems and the services they provide in unpredictable ways. 86

To the degree that our actual development paths involve ever-increasing pressures on natural ecosystems, the goals of a transition to sustainability cannot be met. One of the major threats to ecosystem

goods and services is the lack of understanding about how specific ecosystem functions and services may change with ecosystem transformations and about the options for reducing those functional changes. A second threat is a lack of knowledge about, or incorrect valuation of, ecosystems' worth to society. Effective strategies for sustaining species and ecosystems will have to address both of these issues.

Integrated Strategies for Sustaining Species and Ecosystems

Many of the opportunities discussed above in the areas of energy, water, agriculture, industry, urban systems, and human health are ultimately opportunities for sustaining biological resources and the services they provide. For example, numerous opportunities exist for combining management for sustainable forestry and sustainable agriculture with management for biodiversity and ecosystem integrity. 87 Management of agricultural landscapes to optimize for natural pollinators and natural predators of agricultural pests will at the same time conserve species and ecosystems, because in doing so patches of diverse natural vegetation adjacent to agricultural systems are maintained. 88 Management of regions to maximize water supply and water quality for urban systems can at the same time conserve and sustain the natural systems that provide watershed services. Improvements in efficiency of water and chemical use in agricultural systems (thereby reducing the demands on and losses from these systems) will sustain the quality of down-wind and downstream ecosystems at the same time they protect human health. 89 Opportunities to restore degraded lands have direct relevance to sustainable agriculture and forestry as well as to natural ecosystems.

The focus of preservation efforts is shifting from management of single species to that of multiple species and their interactions with each other and their physical environments. This expansion of the scope of preservation also greatly increases the complexity of the choices to be made both scientifically and in the way that human activities are considered and reshaped. Integrated conservation plans that can simultaneously preserve ecosystems and their species while fostering carefully planned regional economic development illustrate integrated management in which human societies and "nature" are both winners. To take advantage of these and other opportunities, institutions and policies that allow designating regional or landscape-level prescriptions for land use and that enable evaluating and maintaining them over long time scales are likely to be necessary. Development decisions that protect and take advantage of the services natural ecosystems provide will help strengthen prospects for achieving a sustainability transition and therefore should be encouraged.

Integrated Approaches in a Place-Based Context

This chapter has illustrated the strong linkages and interactions that exist between resources and human activities across many different issues, sectors, and scales. Efforts to reach the goals we have sketched for a transition to sustainability cannot be expected to succeed if they are pursued within narrow disciplinary or sectoral frameworks that ignore these interactions. Rather, many of the greatest opportunities identified here for navigating that transition are integrative in defining the problems and seeking the solutions.

As a result of this review of the environmental challenges and opportunities facing a sustainability transition, the Board believes that the most significant threats to it are likely to be the cumulative, interactive consequences of activities across a number of sectors. Society and its decision makers must recognize that agricultural, urban, industrial, and ecosystem processes interact with each other and must be evaluated as an integrated system. This conclusion is shared by other groups that have addressed analogous questions over a period extending back several years, but has been achieving renewed emphasis in recent years. 90

Recognizing the importance of interactions among environmental problems, and of the need for integrated approaches to understand and manage these interactions, still leaves open some questions of appropriate spatial scale. In one sense, the answer is simple: because interactions occur at all scales, integrative research and management are needed at all scales. This is certainly correct as far as it goes. But it is not a particularly helpful observation in improving existing research and management systems. As a step toward developing such guidance, the Board drew on the history of efforts to develop and sustain improvements in agricultural productivity around the world. A major lesson of that experience has been the "location specific" character of useful knowledge and know-how that involves biological and social systems. In the agricultural realm, efforts simply to transfer understanding or technologies created in one part of the world across scales or places have generally not succeeded. Instead, as summarized by a major restrospective sponsored by the Rockefeller Foundation—

The location-specific nature of biological technology meant that the prototype technologies developed at the international centers could become available to producers in the wide range of agroclimate regions and social and economic environments in which the commodities were being produced only if the capacity to modify, adapt, and reinvent the technology was available. It became clear that the challenge of constructing a global agricultural research system capable of sustaining growth in agricultural production required the development of research

capacity for each commodity of economic significance in each agroclimatic region. 91

This Board's work suggests that the insights from experience with agricultural production systems have general applicability to the challenges of navigating a transition to sustainability. As the examples covered in the preceding section of this chapter suggest, many of the most successful integrated analyses of challenges to sustainability have focused on specific places. Like the earlier agricultural efforts, they have prospered to the extent that they have been able to integrate general principles and knowledge of global relationships with specific understanding of local environmental circumstances and social institutions. There is no magic scale for such effective integrations—they have ranged from the planetary work on ozone depletion, through continental assessments of acid rain and regional efforts to restore the Columbia Basin, to highly localized efforts to design sustainability strategies for particular communities. What effective integrative analyses do seem to have in common is the ability to take seriously questions of scale and linkages, and to shape research, development, and management strategies to discover the conceptualizations of "place" most relevant to the problem at hand. To emphasize our beliefs that attention to scale matters in efforts to promote a sustainability transition, but that no particular scale has a "natural" rightness for all the challenges likely to be faced, we have chosen to highlight here the need for "place-based" integrative analysis. As suggested in the Chapter 1 review of the progress towards sustainability reported at the 1997 Special Session of the UN General Assembly, selected leaders in government, industry, and advocacy groups have begun to recognize the need for such integrated, place-based assessments of the challenges and opportunities for a transition to sustainability. In Chapters 5 and 6, we turn to a consideration of the indicators, research, and institutions needed to realize the potential of these analyses.

This analysis shows that progress has been made toward identifying environmental hazards and toward a greater understanding of the challenges in each of the sectors identified 10 years ago by the Brundtland Commission. It has also identified some of the difficulties in overcoming these hazards, and the opportunities to address them. What has become evident in the past decade is the overwhelming degree to which there is increasing interaction among the sectors, and the degree to which the consequences of these interactions are cumulative, sometimes nonlinear, and subject to critical thresholds. Therefore, we conclude that most of

the individual environmental problems that have occupied most of the world's attention to date are unlikely in themselves to prevent substantial progress in a transition toward sustainability over the next two generations. Over longer time periods, unmitigated expansion of even these individual problems could certainly pose serious threats to people and the planet's life support systems. Even more troubling in the medium term, however, are the environmental threats arising from multiple, cumulative, and interactive stresses, driven by a variety of human activities. These stresses or syndromes, which result in severe environmental degradation, can be difficult to untangle from one another, and complex to manage. Though often aggravated by global changes, they are shaped by the physical, ecological, and social interactions at particular places, that is locales or regions. Developing an integrated and place-based understanding of such threats and the options for dealing with them is a central challenge for promoting a transition toward sustainability.

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1 Possible large social, economic, or political threats such as war, terrorism, crime, financial collapse, or substance abuse are not part of this analysis. In part, this is because of the configuration and expertise of the board, but more so because of the absence of the kind of thinking and studies of such social threats that makes possible the comparative ranking and analysis of environmental threats that we undertake in this chapter.

2 Kates and Clark (1996).

3 Norberg-Bohm et al. (1992).

4 Researchers developing the list, Norberg-Bohm et al. (1992); UNEP program on The World's Environment , Holdgate et al. (1982); EPA program on Unfinished Business , EPA (1987).

5 Norberg-Bohm et al. (1992) list modified by Clark and Patt (1997).

6 Scored hazards approach by Clark and Patt (1997).

7 WCED (1987).

8 Bongaarts (1984).

10 NRC (1999b).

11 WRI (1996).

12 Personal communication with Thomas Buettner, United Nations.

13 World Bank (1992); WRI (1996).

14 NRC (1991a, 1997b).

15 WRI (1998).

16 WHO and UNEP (1992).

17 World Bank (1992).

19 The condominial sewerage system, which is used in northeast Brazil, has a shorter grid and shallower feeder sewers running through backyards, resulting in shallower connections to the main pipes, lower construction costs (20 to 30 percent lower than for conventional systems), and less pipe.

20 NRC (1995).

21 Berry (1990); UN (1996).

22 Bender (1997); Ruttan (1996); Daily et al. (1998); see Chapter 3.

23 Pinstrup-Anderson et al. (1997).

24 NRC (1991b); Pinstrup-Anderson and Pandya-Lorch (1996); Ruttan (1996); Strong (1998).

25 NRC (1991b); Ruttan (1996); Cassman et al. (1997).

26 Postal et al. (1996).

27 Matson et al. (1997); NRC (1991b).

28 Chameides et al. (1994).

29 Naylor and Ehrlich (1997); NRC (1991b).

30 NRC (1991b), (1992b); Ruttan (1996).

31 See Strong (1998).

32 Kendall et al. (1997); Conway (1997).

33 Matson et al. (1997); NRC (1991b, 1992b); Woomer and Swift (1994).

34 Postel (1992, 1993).

35 NRC (1992a).

36 NAE (1997).

37 NAE (1994a); NRC (1997a).

38 Industrial waste, Allen and Jain (1992); municipal solid wastes, EPA (1990).

39 Raskin et al. (1996).

40 E.g., selling the cleaning of the factory or office (''selling the factory") as opposed to selling cleaning products and tools.

41 Xerox (1997).

42 Product recycling, NAE (1994b); industrial ecology, NAE (1994a,b), and Socolow et al. (1994).

43 NAE (1994b).

44 NRC (1990,1991a).

45 NRC (1990,1998b).

46 PCAST (1997).

47 PCAST (1997,1999).

48 Daily (1997).

49 PCAST (1998).

50 Vitousek et al. (1997).

51 FAO (1997); Noble and Dirzo (1997).

52 Mangrove ecosystems, WRI (1996); oceans, Pauly and Christensen (1995).

53 Vitousek et al. (1997).

54 FAO (1994); NRC (1999a).

55 Botsford et al. (1997).

56 Lawton and May (1995); PCAST (1998).

57 E.g., Chichilnisky and Heal (1998).

58 Nabhan and Buchmann (1997).

59 Noble and Dirzo (1997); Vitousek et al. (1997); Matson et al. (1997).

60 See, e.g., IGBP (1994); IHDP (1998); DIVERSITAS (1998); and the NRC's "Pathways" report [NRC (1998a)].

61 UNEP et al. (1998); World Bank (1998).

62 Vitousek et al. (1997).

63 Schimel (1994); IPCC (1996); NRC (1994).

64 NRC (1998a).

65 Gleick (1992).

66 Gleick (1998).

67 Nash (1993).

68 Smith et al. (1992).

69 Gleick (1998).

70 Chesapeake Bay, e.g., Costanza and Greer (1998); Columbia Basin, e.g., Lee (1993), and NRC (1996).

71 E.g., Mitchell and Hanemann (1994).

72 NRC (1991a).

73 Chameides and Cowling (1995).

74 Chameides et al. (1994).

75 IPCC (1995).

76 Graedel and Crutzen (1993); Andreae (1993); Rodhe and Herrera (1988).

77 Galloway et al. (1995); Vitousek et al. (1997).

78 Schimel (1994); Townsend et al. (1996).

79 Aber et al. (1989); Aber et al. (1995); Matson et al. (1999).

80 Chameides and Cowling (1995).

81 Hornung and Skeffington (1993).

82 Yagi and Minami (1990).

83 NRC (1992a).

84 Vitousek et al. (1997); Chapin et al. (1997).

85 Ausubel (1996); Waggoner (1994).

86 See chapter 2 NRC (1998a).

87 Daily (1997).

88 Risch et al. (1986); Pimental and Edwards (1982); Matson et al. (1997); Thies and Tscharntke (1999).

89 Matson et al. (1997); Crosson (1995).

90 Several decades, e.g., Odum (1994), Watt (1966), and Holling (1978); recent years, e.g., the World in Transition reports of the German Advisory Council on Global Change (WBGU 1993–1997); see also Chapter 6, Box 6.1.

91 Bell et al. (1994), p. 362; see also Schultz (1964).

World human population is expected to reach upwards of 9 billion by 2050 and then level off over the next half-century. How can the transition to a stabilizing population also be a transition to sustainability? How can science and technology help to ensure that human needs are met while the planet's environment is nurtured and restored?

Our Common Journey examines these momentous questions to draw strategic connections between scientific research, technological development, and societies' efforts to achieve environmentally sustainable improvements in human well being. The book argues that societies should approach sustainable development not as a destination but as an ongoing, adaptive learning process. Speaking to the next two generations, it proposes a strategy for using scientific and technical knowledge to better inform future action in the areas of fertility reduction, urban systems, agricultural production, energy and materials use, ecosystem restoration and biodiversity conservation, and suggests an approach for building a new research agenda for sustainability science.

Our Common Journey documents large-scale historical currents of social and environmental change and reviews methods for "what if" analysis of possible future development pathways and their implications for sustainability. The book also identifies the greatest threats to sustainability—in areas such as human settlements, agriculture, industry, and energy—and explores the most promising opportunities for circumventing or mitigating these threats. It goes on to discuss what indicators of change, from children's birth-weights to atmosphere chemistry, will be most useful in monitoring a transition to sustainability.

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Environmental Concerns in the Modern World Essay

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There are many environmental concerns faced by human race. These concerns are defined as the environmental problems that directly or indirectly affect human beings. There is need therefore to work on these environmental problems with an aim of reducing their impacts. Climate change is one of the major concern facing human beings globally.

Ozone layer depletion and loss of biodiversity have also negatively affected human race thus calling for strategies to combat these environmental issues. Other environmental concerns are in reverence to land degradation, pollution among others. The following discussion is inclusive of the first three concerns.

Ozone layer depletion occurring at the stratosphere which contains the ozone gas, has led to direct ultra-violet rays reaching the earth surface. Oxygen molecules present in the stratosphere absorbs ultraviolet waves which are harmful.

The depletion of ozone layer occurs when the gas is broken down by increased chlorine compounds in the atmosphere which are man-made and also the bromine compounds. The direct reach of ultraviolet (UV) rays to human beings has increased diseases such skin cancer and eye problems.

There has also been an increase in infectious diseases. Ultra violet rays also causes drying up plants which are the major primary source of food to humans (Díez & Dwivedi, 2008). UV rays affect the aquatic life such as fish which are also source of food to human beings.

Climate change is the change in temperatures either by increase or decrease. The increase of temperature which has led to global warming is the major concern facing human beings on climate change.

Anthropogenic activities are however the major cause of climate change on global warming out of increased deforestation by the increasing population, increased release of fossil fuel and the green house gases such as chlorofluorocarbons which increases green house effect.

The further implications to human beings is the increase in sea levels which causes flooding thus loss of human lives, displacements and loss of properties. There is also decrease in water resources due to changes in evaporation thus lowering the agricultural output. Human beings are then faced by food shortages leading to hunger, nutritional diseases, and deaths.

Loss of biodiversity which is the decrease of species in ecosystems is also among the major concern faced by human race. Human beings are the major cause of loss of biodiversity through habitat destruction such as clearing of forest cover, burning of bush which kills the active micro organisms in the soil, and dumping of wastes in water resources which endanger aquatic life.

Biodiversity promotes better lives to human beings such as: ecosystem services through climate stability a role played by trees, soil formation by micro-organisms.

Loss of biodiversity is also inclusive of decrease of biological resources to human like plants which are source of food and medicines. Sociological benefits are also lost as the biodiversity is used by humans for education, recreation, and cultural values (Díez & Dwivedi, 2008).

In conclusion, human beings are the major contributors of the environmental issues which have raised the concerns. There is however natural factors which have lead to environmental concerns but their impact is too minimal compared to those caused by human beings. Human race is therefore faced with the challenge of reducing the environmental issues.

On climate change, there is need to practice reforestation, use electric, solar and wind energy to replace the fossil fuels thus reducing the green house effect. On ozone layer depletion just like climate change, there is need to reduce the release of carbons such as chlorofluorocarbons.

It is also important for humans to protect the existing species like reducing the dumping of untreated waste in water resources and clearing of forest at the same time opting for better farming methods other than burning (Rourke, 2008).

Díez, J., & Dwivedi, P. (2008). Global Environmental Challenges: Perspectives from the South. New York: Broadview Press.

Rourke, J. T. (2008). International Politics on the World Stage. New York: McGraw-Hill Higher Education.

  • Physical Features of the Earth and Forces in Motion
  • Tropical Rain Forest: What Threats This Ecosystem?
  • What we can do to protect Ozone layer
  • Ozone Holes, Their Causes, Effects and Reduction
  • Acid Rain and Ozone Pollution
  • Water Quality Issues in Developing Countries
  • Comparison of Secondary and Tertiary Waste Water Management
  • A Discussion of Air Pollution & Related Health Implications on the Community
  • Effects of the Columbia River Dams on Salmon Population
  • The Effects of the US Army Corp Engineers Lock and Dam System on Recreation
  • Chicago (A-D)
  • Chicago (N-B)

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IvyPanda . (2018) 'Environmental Concerns in the Modern World'. 21 May.

IvyPanda . 2018. "Environmental Concerns in the Modern World." May 21, 2018. https://ivypanda.com/essays/environmental-concerns/.

1. IvyPanda . "Environmental Concerns in the Modern World." May 21, 2018. https://ivypanda.com/essays/environmental-concerns/.

Bibliography

IvyPanda . "Environmental Concerns in the Modern World." May 21, 2018. https://ivypanda.com/essays/environmental-concerns/.

Threats to the Global Environment

Introduction.

The environment is our surround, and its safety depends on how we treat it. There are several ways the environment has been damaged in the 21 st  century: climate change, biodiversity loss, water and air pollution, natural disasters including droughts and high temperatures, and the drain of natural resources. The world has noticed the changes and is taking measures to ensure the environment is protected, including planting trees, using less paper, and using renewable energy sources. In the united states project, the two projects that I will discuss are the use of fossil fuels as an energy source and globalization. Fossil fuels are made from decomposing animals and plants. These fuels are found in the earth’s crust and are made of hydrogen and carbon and can be turned into energy. When these fuels are burned, they release huge amounts of carbon dioxide and nitrogen oxides into the atmosphere. Carbon dioxide is a greenhouse gas that traps heat in the atmosphere leading to global warming. When introduced to the air, the nitrogen oxides lead to acid rain. The major sources of nitrogen oxide emissions are cars and trucks, ships and airplanes, large industrial operations, and coal-fired power plants. The best solutions for businesses that reduce the release of these gases into the air include managing and reducing emissions, buying renewable energy, and increasing energy efficiency. Individuals using cars and trucks should minimize miles and conserve energy (Johnsson et al., 2019).

Globalization is defined as the increase in the flow of goods, capital, services, and ideas across international boundaries. Globalization has brought a lot of change to the world and greatly affected the global environment. Some positive effects include less international aggression and increased international cooperation. To the environment, it has impacted and not in a positive way, including increased transportation of goods, economic specialization, decreased biodiversity, and increased awareness. In terms of increased transport of goods, the environment has been affected by increased emissions, invasive species, and the destruction of habitats. Also, overspecialization leads to environmental issues that involve habitat loss, overuse of resources, and deforestation. Globalization, according to research, cannot be stopped but can be improved. Between 200 and 2010, trade only accounted for 20% of net manufacturing losses in the United States. The world should provide better education, career training, and less rigid labor markets to avoid teh pressures of globalization (Chen et al., 2021). The paper’s main aim is to discuss the two issues chosen that affect the environment and identify the factors that make them serious risks. Then analyze ways in which humans have contributed to the aggravation of the two threats to the environment and suggest ways the global community can take to prevent worse effects of the threats to the environment.

Fossil Fuels

Factors that make fossil fuels a threat to the environment.

When buried carbon-based organisms that died long ago decompose, they form fossil fuels. The carbon-rich deposits are extracted from the organisms and burned to produce energy. Fossil fuel is non-renewable energy that makes up 80% of the world’s energy. The types of fossil fuels are coal, gas, and oil. Burning of these fossil fuels releases carbon dioxide, carbon monoxide, sulfur dioxide, nitrogen oxides, lead, and particulate matter. Airborne nitrogen pollution affects not only the air we breathe but also the water and land we walk on. Nitrogen is the most abundant component of air and is used by both animals and plants. Sources of power from human activities such as industrial wastes, agriculture, electric power generation, transportation, and upset the natural balance of nitrogen in the atmosphere. Nitrogen oxides, when released into the atmosphere, contribute to the formation of acid rain and smog. Research from the intergovernmental panel on climate change (IPCC) shows that emissions from these fuels are the main cause of global warming. Studies from 2018 show that 80% of global emissions of carbon dioxide came from fossil fuels. Coals, as fossil fuels, are the dirtiest of them all and are responsible for a 0.3C to 1C increase in global temperatures. Natural gas is referred to as the cleaner fossil fuel, but it accounts for 20% of global carbon emissions. Oil releases around a third of the world’s carbon emissions. In recent years, there have been spillages that affect the ocean ecosystem (Johnsson et al., 2019).

Fossil fuels cause air pollution, water pollution, and climate change. Climate is affected when carbon dioxide emitted during the burning of fuels causes global warming. The more CO2 released, the more heat is trapped on earth through the greenhouse effect. The increase in temperatures leads to deforestation, droughts, scarcity of food sources, and a rise in sea levels. Water pollution occurs when sulfur dioxide dissolves into water and creates sulfuric acid, which produces acid water leading to the acidification of freshwater bodies such as lakes and oceans, which are habitats for many water animals. Air pollution happens when carbon monoxide, sulfur oxide, and nitrogen oxides are released into the air. The effects of these gases released into the air include cancer, respiratory disease, and cardiovascular disease. People prone to these effects are pregnant women, children, and the elderly (Ueckerdt et al., 2021).

How humans have contributed to aggravating the threat

Humans have also contributed to the effects of fossil fuels on the environment. When fossil fuels are retrieved from the ground, they leave the ground open, threatening human safety. The process also leaves open holes, which result in soil erosion and contamination of soil, surface water, and groundwater. Also, sometimes the extraction of fossil fuels happens in areas that had trees before. Humans are the ones who direct the whole process meaning that they promote deforestation so that the extraction can occur. During the burning of fossil fuels to release toxic gases, the process is directed by humans meaning that they directly contribute to the production of the gases that produce acid rain and affect the respiratory system of humans (Erickson et al., 2018).

Measures to mitigate worse effects of the threat

One way to mitigate the use of fossil fuels is adapting the use of renewable sources such as solar energy, hydroelectricity, and wind power. Transitioning to clean energy significantly reduces emissions that negatively affect the environment. Nuclear emissions and renewable energy do not produce s emissions and are recommended worldwide to slow the effects of climate change. Businesses are recommended to manage and reduce emissions by preparing annual greenhouse gas inventories and setting targets to reduce the emissions. Also, businesses are required to increase energy efficiency to reduce the emission of greenhouse gases. They should develop and implement an effective corporate energy management program that allows them to manage the energy they use to manage other business aspects. Businesses are aloe recommended to buy renewable energy to reduce the emission of greenhouse gases that impact the environment negatively (Wood & Roelich, 2019).

Individuals are required to minimize miles since driving cars produces large amounts of nitrogen oxide emissions. Drivers are advised to consolidate driving trips and take public transport when possible to help cut down air pollution. Through the conservation of energy methods, such as buying equipment that uses less electricity, such as heaters, refrigerators, and air conditioners, individuals are able to minimize airborne nutrient pollution. Another way to mitigate the use of fossil fuels is by taking part in carbon offsetting programs which are designed to reduce the carbon produced from activities such as burning fossil fuels. An example is when taking a flight to a place, one can buy the carbon offset credits that support projects that reduce the amount of carbon in the air (Erickson et al., 2018).

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  • Security Council

Climate Change ‘Biggest Threat Modern Humans Have Ever Faced’, World-Renowned Naturalist Tells Security Council, Calls for Greater Global Cooperation

Climate change is a “crisis multiplier” that has profound implications for international peace and stability, Secretary-General António Guterres told the Security Council today, amid calls for deep partnerships within and beyond the United Nations system to blunt its acute effects on food security, natural resources and migration patterns fuelling tensions across countries and regions.

Throughout the morning, the Council’s high-level open debate on climate and security heard from a range of influential voices, including naturalist David Attenborough, who called climate change “the biggest threat to security that modern humans have ever faced”.  In video remarks telecast at the outset, he warned that concentrations of carbon dioxide currently in the atmosphere have not been equalled for millions of years.

“If we continue on our current path, we will face the collapse of everything that gives us our security,” he said:  food production, access to fresh water, habitable ambient temperature and ocean food chains.  The poorest — those with the least security — are certain to suffer.  “Our duty right now is surely to do all we can to help those in the most immediate danger.”

While the world will never return to the stable climate that gave birth to civilization, he said that, if Governments attending the twenty-sixth Conference of the Parties to the United Nations Framework Convention on Climate Change (UNFCCC) in November recognize climate change as a global security threat, “we may yet act proportionately — and in time”.

Climate change can only be dealt with by unparalleled levels of global cooperation, he said.  It will compel countries to question economic models, invent new industries and recognize the moral responsibility that wealthy nations have to the rest of the world, placing a value on nature that “goes far beyond money”.  He challenged the international community to finally create a stable, healthy world where resources are equally shared and where — for the first time in history — people “come to know what it feels like to be secure”.

Mr. Guterres echoed those calls, describing the climate emergency as “the defining issue of our time”.  Noting that the last decade was the hottest in human history, he said wildfires, cyclones, floods and droughts are now the new normal.  “These shocks not only damage the environment on which we depend, they also weaken our political, economic and social systems,” he said.

Indeed, where climate change dries up rivers, reduces harvests, destroys critical infrastructure and displaces communities, it exacerbates the risks of conflict, he said.  A study by the Stockholm International Peace Research Institute found that 8 of the 10 countries hosting the largest multilateral peace operations in 2018 were in areas highly exposed to climate change.

The impact is greatest where fragility and conflict have weakened coping mechanisms, he said, where people depend on natural capital for their livelihoods and where women — who bear the greatest burden of the climate emergency — do not enjoy equal rights.  He highlighted examples in Afghanistan, where reduced harvests have pushed people into poverty, leaving them susceptible to recruitment by armed groups, and across West Africa and the Sahel, where changes in grazing patterns have fostered conflict between pastoralists and farmers.  In some Pacific small island nations, entire communities have been forced to relocate.

“The forced movement of larger numbers of people around the world will clearly increase the potential for conflict and insecurity,” he observed.  He called for greater efforts to address climate‑related security risks, starting with a focus on prevention, and creating a global coalition committed to achieving net-zero emissions by mid-century.  The United Nations is asking companies, cities and financial institutions to prepare credible decarbonization plans.

In addition, immediate actions are needed to protect countries from increasingly frequent and severe climate effects.  He urged donors and multilateral and national development banks to increase the share of adaptation and resilience finance to at least 50 per cent of their climate finance support.  Developed countries, too, must keep their pledge to channel $100 billion annually to the global South.  “They have already missed the deadline of 2020,” he acknowledged.

Above all, he called for embracing a concept of security that places people at its centre, stressing that COVID-19 has laid bare the devastation that non‑traditional security threats can cause on a global scale.  In all such efforts, it will be essential to build on the strengths of the Security Council, Peacebuilding Commission, international financial institutions, regional organizations, civil society, the private sector, academia and others.

Issuing a call to action, Nisreen Elsaim, Chair of the Youth Organization on Climate Change and the United Nations Youth Advisory Group, said young people around the globe are watching the Security Council as it grapples with climate change.  Each of the organ’s four meetings on the issue — in 2007, 2011, 2018 and 2019 — have referenced serious climate-related security risks in Somalia, Darfur, West Africa and the Sahel, Mali and the Lake Chad Basin.  “Science has forecasted many more countries will join this list if we did not take the right measures now, and if we did not start adaptation specially in Africa,” she said, adding that, in her country, “we are living in continuous insecurity due to many factors that put Sudan on the top of the list when it comes to climate vulnerability”.

She recalled that, in a 2018 Council resolution on Sudan, members recognized the adverse effects of climate change, ecological changes and natural hazards on the situation in Darfur, focusing specifically on drought, desertification, land degradation and food insecurity.  “Human survival, in a situation of resources degradation, hunger, poverty and uncontrolled climate migration, will make conflict an inevitable result,” she said.  Moreover, climate-related emergencies cause major disruptions in access to health, life-saving sexual and reproductive health services, and result in loss of livelihoods and drive displacement and migration.  They also increase the risk of gender-based violence and harmful practices and force young people to flee in search of a decent life.

Welcoming the Council’s recent deployment of a new special political mission, the United Nations Integrated Transition Assistance Mission in the Sudan (UNITAMS), she said it has a historic opportunity to speak to the root causes of the conflict.  Climate change and youth participation is mentioned twice in the Mission’s mandate, and climate change challenges are included in the 2020 Juba Peace Agreement.  Emphasizing that young people must be part of the solution, she declared:  “We are the present, we have the future, let’s not repeat previous generations’ lapse.”

In the ensuing dialogue, Heads of State and Government, along with ministers and other senior officials described national actions to attenuate the negative impact of climate change and offered their views on the related security risks.  Some pressed the Council to broaden its thinking about non-traditional security threats.  Several — including leaders from Kenya and Niger — stressed that the link between climate and conflict could not be more evident, while others explored the ability of Governments to meet people’s basic needs, and still others cast doubt on the assertion that the relationship between climate and conflict is causal, instead pointing to political and economic factors that are known to drive tensions.

Boris Johnson, Prime Minister of the United Kingdom and Council President for February, speaking in his national capacity, said the Council, while imperfect, has been willing to lead the way in confronting threats to international security.  “That is exactly what climate change represents,” he said, acknowledging that, while there are some who disagree, these cynics “could not be more wrong”.  While the causes of climate change may not sit within the Council’s traditional purview, its effects most certainly do.  He asked delegates to consider the young man forced onto the road when his once‑fertile home becomes a desert — one of the 16 million people displaced by weather-related disasters each year — who becomes easy prey for violent extremists, or the girl who drops out of school because her daily search for water takes her away from her family — and into the sights of the human traffickers.

“If such scenes were triggered by the actions of some despotic warlord or internecine conflict, few would question this Council’s right to act or its duty to do so,” he assured.  “This is not a subject from which we should shy away.”  The world must move from 51 billion metric tons of greenhouse‑gas emissions each year to net zero, so that the increase in global temperatures remains within manageable levels.  For its part, the United Kingdom Parliament passed a law committing to net zero by 2050, he said, drawing attention to his pledge that the nation would slash emissions by 68 per cent by 2030.  He urged the Council to act, “because climate change is a geopolitical issue every bit as much as an environmental one”, stressing that, if it is to succeed in maintaining peace and security worldwide, it must galvanize and support the United Nations family of agencies into a swift and effective response.

Kaïs Saïed, President of Tunisia , agreed with Ms. Elsaim that the world must listen to youth on climate change.  More broadly, humans — and not money — must be placed at the centre of the issue.  Voicing support for the Secretary-General’s 2021 priorities, especially his efforts to galvanize Member States to confront the multiple impacts of climate change, he described it as ironic that humans are, at the same time, the phenomenon’s drivers and its greatest victims.  “It is no one’s right to […] to commit all of humanity to death,” he stressed, noting that Council resolution 2532 (2020) confirmed that insecurity can be driven by a multitude of factors, not just armed conflict.  One such driver is the deepening poverty and resource scarcity resulting from a changing climate, particularly in Africa.  Climate factors often prolong conflict and create conditions conducive to deprivation, exclusion, terrorism and organized crime.

Calling on the Council to adopt a new, more comprehensive approach and for sufficient resources for all specialized agencies related to climate change, he underlined the need for early warning systems and better prevention strategies.  Noting that the COVID-19 pandemic and other recent crises have once again revealed the need for States to strengthen their solidarity, he emphasized the need for prompt action while stressing that the burden borne by States must be differentiated based on their degree of responsibility for causing the crisis.  Moreover, mitigation cannot be at the expense of developing countries, he said.

Uhuru Kenyatta, President of Kenya , said that new approaches to investment by the public and private sector need to reach the countries and regions worst hit by climate change.  Persistent droughts, constant sea‑level rise and increasingly frequent extreme weather patterns are reversing economic growth and development gains achieved over decades.  The result is increased fragility to instability and armed conflict that then come to the attention of this Security Council.  The implementation of the Council’s mandate to maintain global peace and security will only get more difficult with time if climate change remains on its present course.  Rather than wait for a future tipping point, we must redouble the efforts to direct all the resources and multilateral frameworks of our rules-based international order to mitigate the effects of climate change.  While the bulk of this work is happening outside the Council, no body with such a strong mandate should step aside from this challenge.

The climate-security nexus is already impacting Africa.  “Listen to us Africans when we tell you that the link is clear, its impact tangible and the need for solutions urgent,” he said.  Making recommendations, he said that the Council must do more when crafting mandates for conflict resolution and post-conflict resolution to ensure they dovetail with the efforts to deploy climate change mitigation and adaptation measures.  In this regard, he applauded Council resolutions 2349 (2017) and 2502 (2019), respectively on Lake Chad and the Democratic Republic of the Congo, that have integrated measures to address the impact of climate change.  The 15-member organ can also act strongly against illicit financial outflows, illicit resource exploitation, terrorism financing and money‑laundering in the most fragile regions in Africa.  Doing so immediately boosts the resources available to Governments to undertake climate change mitigation and offer the public services and goods needed to consolidate and protect peace.

Brigi Rafini, Prime Minister of Niger , agreed that the impact of climate change on peace and security is increasingly evident, stressing that water scarcity exacerbated by climate change could see gross domestic product (GDP) in the Sahel fall by 6 per cent and hunger increase 20 per cent by 2050.  Climate change has increased competition for diminished land and water resources, ramping up tensions between livestock owners and others.  He underscored the collective responsibility to tackle this existential challenge, stressing that “climate change and land degradation are no longer purely environmental matters”.  Rather, they are part of a broader view that links environmental goals with those for economic and social development, and the pursuit of international peace and stability.

“We need to consider climate change as a threat to peace and security,” he said, urging the Council to shore up its understanding of impact on security and to systematically consider climate change in its resolutions pertaining to specific country and regional contexts.  In such efforts, it should rely on the advisory role of the Peacebuilding Commission, and the Informal Expert Group on Climate and Security, co-chaired by Niger and Ireland.  The appointment of a Special Envoy of the Secretary-General for Climate and Security likewise will raise the profile of this dimension within the Council’s work.

Nguyễn Xuân Phúc, Prime Minister of Viet Nam , said the Earth’s recent calamities have placed great burdens on the political and socioeconomic life of many countries, causing unemployment and poverty, creating instability and exacerbating current conflicts.  Against that backdrop, the Council should galvanize the international community’s collective efforts with an approach that is balanced between traditional and non-traditional security challenges.  That includes addressing the root causes of conflicts such as poverty, inequality, power politics and unilateral interference and coercion.

Calling for strict adherence to the Charter of the United Nations and international law, he said the 2030 Agenda for Sustainable Development, the United Nations Framework Convention on Climate Change (UNFCCC) and the Paris Agreement on climate change must guide the way, and greater resources are needed to support developing countries, least developed countries, small island developing States and landlocked countries.  The Council should also enhance its early warning capacity, bolster its mediation and conflict prevention roles, work more closely with regional organizations and fully respect States’ sovereignty and national ownership.  Noting that Viet Nam is among the six countries most severely affected by climate change, he outlined various national efforts to address the challenge while requesting more international assistance.

Erna Solberg, Prime Minister of Norway , emphasized that climate change is redefining the global security landscape.  “We must rethink and adapt the Council’s approaches to peacebuilding and sustaining peace in three ways,” she said.  First, the Council needs better information on climate-related security risks.  International research networks and the informal expert group will be important in that regard.  Norway has helped establish a Nordic-Baltic expert network.  Second, the Council should discuss climate risks in specific country contexts, based on country reporting and briefings.  The United Nations must be at the forefront of preventive diplomacy.  To achieve sustainable solutions, peace diplomacy must be climate-sensitive, and climate action must be conflict‑sensitive.  Third, it is imperative to strengthen partnerships within and beyond the United Nations system, including with affected States and regional organizations.  The active participation of diverse groups, including women and youth, is also vital.

The national security communities in many countries have understood the security risks posed by climate change, she continued.  While climate change can lead to hard security challenges, there are no hard security solutions.  The first line of defence is ambitious climate action.  It must begin with the full implementation of the Paris Agreement and 2030 Agenda.  Climate action depends on multilateral cooperation.  By shouldering a common responsibility to counter climate change, the Council will be better prepared to maintain international peace and stability.

Ralph E. Gonsalves, Prime Minister and Minister for Foreign Affairs of Saint Vincent and the Grenadines , emphasizing that the Council has a responsibility to address the consequences of climate change, said a failure to do so would be, in part, “an abdication of our duty”.  It is time for the organ to seriously consider drafting a resolution on the matter and to map out a coherent approach, aiming for a working consensus.  Affirming UNFCCC’s role as the primary body for dealing with climate change and the Paris Agreement as a major part of the rules-based international system, he said the Council should play its role without encroaching on the work of UNFCCC’s inclusive decision-making body.  It should also engage with the Peacebuilding Commission and the General Assembly on climate and security risks that touch on issues of humanitarian support, sustainable development, health pandemics, peace and security.

Stressing that the first step to prevent or contain climate-security risks is for the major, and historical, emitters to fulfil — and indeed exceed — the commitments made in the Paris Agreement, he underlined the principle of common but differentiated responsibility.  Climate change is an existential threat that disproportionately affects the most vulnerable, especially small island developing States such as Saint Vincent and the Grenadines.  “It has become distressingly commonplace for an entire year’s [gross domestic product] to be washed away by a hurricane overnight, even as we are hindered by a lack of a sufficient inclusion, on favourable terms, into the global financial architecture,” he said.  Citing the many natural hazards in Haiti, in particular, he also drew attention to the Sahel region and the battle for dwindling resources.  However, no country is immune to such human-made challenges and all must stand in solidarity, with the Council paying close attention to climate change as it crafts its mandates, he said.

Kaja Kallas, Prime Minister of Estonia , said 7 of the 10 countries most vulnerable and least prepared to deal with climate change host a United Nations peacekeeping operation or a special political mission — a fact the Council cannot ignore.  She expressed support for the statement to be delivered by Germany’s Foreign Minister on behalf of like-minded countries pointing the way forward for the Council, stressing that “we need to acknowledge that the climate emergency can pose a danger to peace — and we must make it a part of our security policy planning and discussions here”.  She pressed the Council to “do more” to fully

aspects of its work, noting that the Secretary-General must receive a mandate to collect data and coordinate policy to this aim.

Among other efforts, she said that Estonia cooperates with small island States and least developed countries in green technology solutions and know-how transfer.  The Government also recently launched the Data for the Environment Alliance, a coalition of State and non-State actors that will support the United Nations Environment Programme (UNEP) in developing a global environmental data strategy by 2025.

Simon Coveney, Minister for Foreign Affairs and Defence of Ireland , said that climate change has many complex impacts, not least on international peace and security, the very business of this Council.  Climate change is already causing upheaval, affecting peace and security and the stability of societies.  Pointing out that the relationship between climate and security works in complex ways, he said political instability undermines efforts to build climate resilience, and the impact of climactic shocks is compounded when institutions are strained.  Ireland is proud to join the Weathering Risk Project to help guide action at the Security Council and beyond, and is keen to understand better not just how climate change contributes to insecurity but how climate action can build peace.  Ireland chairs the Informal Expert Group of Member States on this topic, together with Niger, also partnering with Nauru and Germany, as Chairs of the Group of Friends on Climate and Security.

Ireland’s core message today is that the inclusion of climate in Council discussions and actions will strengthen conflict prevention and support peacebuilding efforts.  Stressing the need to ensure the full, equal and meaningful participation of women and youth in decision-making processes related to climate issues and the management of natural resources, he declared:  “But, in listening to and understanding the concerns and insights of future generations, we cannot abrogate our responsibility to provide leadership today”.

Marcelo Ebrard Casaubón, Minister for Foreign Affairs of Mexico , said the COVID-19 pandemic has revealed that international peace and security can no longer be viewed through a single lens, but must also consider multiple drivers of insecurity.  Food insecurity, water scarcity and droughts — all exacerbated by climate change — have reached severe levels in several regions of the world.  Pledging Mexico’s support to the next Conference of Parties to the UNFCCC in Glasgow, later in 2021, he said climate change requires a comprehensive global response with a focus on ecosystem preservations.  Mexico recently submitted its own national plan in that arena, which is coupled with a focus on prevention and adaptation, as well as efforts to reduce inequality and strengthen communities.  Stressing that all efforts must be taken in line with the 2030 Agenda, he welcomed the Council’s creation of an informal group to monitor the links between climate and peace and security as a timely measure.  Underlining the importance of ensuring sustainable peacebuilding and protecting livelihoods, he agreed with the Secretary-General that post-pandemic recovery efforts are an opportunity to “build back better” and build more egalitarian, adaptable societies.

Emmanuel Macron, President of France , said protecting the environment has, in recent years, meant recognizing climate change as a peace and security issue.  Of the 20 countries most affected by conflict in the world, 12 are also severely impacted by climate change, he said, spotlighting the impacts of desertification, the increase in forced migration and agricultural challenges — all of which have resulted in such fallout as the advent of climate refugees and growing conflicts over land and water.  Endorsing the initiative to address such matters under the auspices of the Council, he echoed calls for the appointment of a United Nations Special Envoy for Climate Security, as well as for an annual Secretary-General’s report with relevant recommendations.

Recognizing that the effects of climate change are unfairly distributed worldwide, he recalled his recent call for France’s contribution to the Green Climate Fund to be increased to one third of its total.  France strongly supports the creation of a “Great Green Wall” in Africa, which aims to restore 250 million hectares of land for agriculture, create 10 million green new jobs and sequester carbon.  He also pledged France’s commitment to accelerating the preservation of biodiversity, while calling for strengthened dialogue between the African Union and the United Nations on climate and security.  Turning to the Pacific, where many nations are struggling to implement mitigation measures, he called for additional international support and an easing of geopolitical tensions across the region.

Prakash Javadekar, Minister for Environment, Forests and Climate Change of  India , recalled the global democratic effort to take climate action in a nationally determined manner, based on the principle of common but differentiated responsibility and respective capabilities.  He cautioned the Council against building a parallel climate track where such principles are “brushed aside”.  Noting that there is no common, widely accepted methodology for assessing the links between climate change, conflict and fragility, he said fragility and climate impact are highly context‑specific.  In fragile contexts, where Governments struggle to provide basic services, emergency conditions are largely driven by political violence disrupting harvests and aid supplies, rather than by climate factors alone.  “A complete picture of climate vulnerability only emerges with an assessment of the State’s capacity to be the primary responder to interrelated environmental, social, economic and security dynamics,” he said.  While climate change does not directly cause violent conflict, its interaction with other social, political and economic factors can exacerbate conflict drivers.  He called for the building of robust governance structures at local, national and regional levels to address climate‑ and fragility-related risks, pressing donor countries to provide greater financial, technological and capacity-building assistance to help fragile States enact adaption and mitigation strategies.

John F. Kerry, Special Presidential Envoy for Climate of the United States , thanked European and other countries for their leadership on climate change during what he described as the United States “inexcusable absence” from the debate over the past four years.  Though climate change is indeed an existential threat, the world has yet to adequately respond to it.  Noting that the question of climate change is no longer one for debate, he declared:  “The evidence, the science, is screaming at us.”  Many of the world’s regions most impacted by climate change are also projected to become future conflict hotspots.  Therefore, the issue must feature in all of the Council’s work and reporting.  Emphasizing that President Joseph R. Biden understands that “we do not have a moment to waste”, he cited his new coordinated, whole-of-Government approach which aims to elevate the issue and put the United States on the path to sustainability that can never be reversed by any future President or demagogue.

Addressing climate change will require every country to step up and boost their level of ambition, he said, noting that the world’s largest carbon emitters bear the greatest responsibility.  First and foremost will be the need to reduce the use of coal globally.  “Inaction comes with a far higher price tag than action,” he said, stressing that, not since the industrial revolution has there been such potential to build back better in every part of the globe.  Just by doing nothing, humanity will march forward in what is tantamount to a mutual suicide pact, he warned, spotlighting the importance of the climate summit to be hosted by President Biden in the coming weeks, as well as the Conference of Parties to the UNFCCC to be held in Glasgow later in 2021.  The United States will also work with like-minded countries in the Council, he said, urging Member States to begin treating climate change as the security crisis that it is.

Xie Zhenhua, Special Envoy for Climate Change of China , said that, even as global climate governance enters a new and crucial phase, the spread of COVID-19 poses serious threats to the global response.  Given the differences in historical responsibility and development levels between States, he underscored the principle of common but differentiated responsibility and urged developed nations to lead the way.  In building back after the pandemic, countries should respect nature, protect biodiversity, champion green lifestyles and “avoid old paths of giving without taking” from the Earth.  In that context, he described climate change as a development issue, urging the international community to support developing nations, least developed countries and small island developing States in implementing mitigation and adaptation measures.

“We need to stay committed to multilateralism,” he stressed, underlining the importance of UNFCCC and the Paris Agreement as the main channels for those critical discussions.  Any role to be played by the Security Council on climate change must fall under its purview, he added.  Outlining China’s commitment to fulfilling its responsibilities under the Paris Agreement, he spotlighted its recently announced plan to have national CO 2 emissions peak before 2030 and to achieve carbon neutrality prior to 2060.  He also pointed out that the country’s forest cover has been rising steadily for many years, that it leads the world in green power generation and that it tops the list of clean energy patents registered.

The representative of the Russian Federation agreed that addressing climate change requires a global approach that is coordinated, targeted at reducing emissions and implementing effective adaptation measures, especially through UNFCCC.  Noting that the Council has discussed climate change on several occasions, he said the issue is often presented as a fundamental threat to stability and as a root cause of problems, particularly in Africa, with warnings about the increasing risks of conflict.  While he agreed that climate change can exacerbate conflict, he questioned whether it is the root cause of violence.  “There are serious doubts,” he said.  The connection between climate and conflict can be examined only in certain countries and regions.  Discussing it in the global context is not relevant.  “Not all conflicts are threats to international peace and security,” he explained.  In addition, considering climate as a root cause of security issues distracts from the true root causes, and thus, hinders solutions.  Political and socioeconomic factors, which have a greater influence on conflict risk, cannot be ignored, he said, pointing out that COVID-19 has exacerbated inequalities within and between countries and sparked an uptick in hunger — including in countries that were already in conflict.  He urged donors to address the problem of “green protectionism”, seen in their refusal to exchange technology that would allow others to adapt.   While discussing climate issues in the Council is seen as beneficial, the “real work” of improving coordination of international activities would be better accomplished in the General Assembly, the Economic and Social Council and UNFCC.  Conflicts — in and of themselves — reduce the ability of States to adapt to climate change, he said, explaining that the increased security risks in the Sahel are, in fact, caused by countries pursuing regime change in Libya.

Lazarus McCarthy Chakwera, President of Malawi , speaking for the least developed countries, said building resilience to mitigate the security risks associated with climate change must begin with reflections on COVID-19, as Governments have relegated many other priorities in the quest to fight the virus.  Describing the impact of the nexus between climate change and security is “indiscriminate and consequential”, he said water scarcity, desertification and cyclones all foster competition for resources, and in the process, turn people into climate refugees.  Least developed countries bear the brunt of these phenomena, despite that their emissions are 30 times lower than those of high‑income countries.  Stressing that recovery from the coronavirus must be aligned with efforts to limit global temperature rise to 1.5°C, he pressed developed countries to approach the 2021 UNFCC meeting with more ambition than in years past, as their current commitments to cut emissions remain “woefully inadequate”.  They must fulfil their pledges to provide $100 billion in climate financing annually, answer the call to earmark 50 per cent of financing in the Green Climate Fund for adaptation, especially in least developed countries, and to meaningfully transfer climate‑friendly technologies to help least developed countries accelerate their green development efforts.

Gaston Alphonso Browne, Prime Minister and Minister for Finance and Corporate Governance of Antigua and Barbuda , spoke on behalf of the Alliance of Small Island States, declaring:  “Make no mistake […] climate change’s existential threat to our own survival is not a future consideration, but a current reality.”  For the past 30 years, the Alliance has been the single most consistent advocate on climate, he said, highlighting the often-overlooked threats faced by small island developing States.  He urged the international community to simultaneously plan and operationalize a system to address inevitable loss and damage which uproot peace and security of small island developing States.  Equitable solutions are needed to systematically address difficult issues, such as climate change displacement, including the treatment of climate refugees, and loss of territory. For the past three decades, small island and low-lying States have been sounding the alarm, sending the SOS distress signal.  They are losing their territories, populations, resources and very existence due to climate change.  The Secretary-General recently stated:  “Without nature’s help, we will not thrive or even survive[…] For too long, we have been waging a senseless and suicidal war on nature.”  Sadly, small island developing States continue to be the front line for this war.  “Our appeal for the Council is to take this threat very seriously before it is too late,” he said.

Heiko Maas, Federal Minister for Foreign Affairs of Germany , speaking for the Group of Friends of Climate and Security, said those countries are united by the common belief that climate change is the fundamental challenge of our time.  The poorest and most vulnerable are suffering the most, with entire islands at risk of disappearing.  “We are putting their future, their safety and their well‑being at risk if we don’t act,” he stressed, calling for concerted efforts by the United Nations in making climate change its top priority.  Agreeing with other speakers that the issue has major implications for peace and security, he said it therefore belongs firmly on the Council’s agenda.  In July 2020, the Nauru delegation presented the organ with a plan of action, including calling for the appointment of a Special Envoy on Climate and Security; regular reporting to the Council; climate‑sensitive peacebuilding; and more cooperation with civil society, regional and national actors on climate-related security risks.  Now, it is time for the Council to adopt a strong resolution reflecting each of those points, he said.

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15 Biggest Environmental Problems of 2024

15 Biggest Environmental Problems of 2024

While the climate crisis has many factors that play a role in the exacerbation of the environment, some warrant more attention than others. Here are some of the biggest environmental problems of our lifetime, from deforestation and biodiversity loss to food waste and fast fashion.

1. Global Warming From Fossil Fuels

2023 was the hottest year on record , with global average temperatures at 1.46C above pre-industrial levels and 0.13C higher than the eleven-month average for 2016, currently the warmest calendar year on record. The year was marked by six record-breaking months and two record-breaking seasons.

What’s more, carbon dioxide (CO2) levels have never been so high . After being consistently around 280 parts per million (ppm) for almost 6,000 years of human civilisation, CO2 levels in the atmosphere are now well above 420 ppm, more than double what they were before the onset of the Industrial Revolution in the 19th century. According to National Oceanic and Atmospheric Administration (NOAA) Administrator Rick Spinrad, the steady annual increase is a “direct result of human activity,” mainly from the burning of fossil fuels for transportation and electricity generation but also from cement manufacturing, deforestation , and  agriculture .

This is undoubtedly one of the biggest environmental problems of our lifetime: as greenhouse gas emissions blanket the Earth, they trap the sun’s heat, leading to global warming.

Monthly mean carbon dioxide CO2 measured at Mauna Loa Observatory, Hawaii. Image: Global Monitoring Laboratory

Increased emissions of greenhouse gases have led to a rapid and steady increase in global temperatures, which in turn is  causing catastrophic events all over the world – from Australia and the US experiencing some of the most devastating bushfire seasons ever recorded, locusts swarming across parts of Africa, the Middle East and Asia, decimating crops, and a heatwave in Antarctica that saw temperatures rise above 20C for the first time. S cientists are constantly warning that the planet has crossed a series of tipping points that could have catastrophic consequences, such as  advancing permafrost melt in Arctic regions, the Greenland ice sheet melting at an unprecedented rate, accelerating sixth mass extinction , and increasing deforestation in the Amazon rainforest , just to name a few.

The climate crisis is causing tropical storms and other weather events such as hurricanes, heatwaves and flooding to be more intense and frequent than seen before. However, even if all greenhouse gas emissions were halted immediately, global temperatures would continue to rise in the coming years. That is why it is absolutely imperative that we start now to drastically reduce greenhouse gas emissions, invest in renewable energy sources, and phase our fossil fuels as fast as possible.

You might also like: The Tipping Points of Climate Change: How Will Our World Change?

2. Poor Governance

According to economists like Nicholas Stern, the climate crisis is a result of multiple market failures .

Economists and environmentalists have urged policymakers for years to increase the price of activities that emit greenhouse gases (one of our biggest environmental problems), the lack of which constitutes the largest market failure, for example through carbon taxes, which will stimulate innovations in low-carbon technologies.

To cut emissions quickly and effectively enough, governments must not only massively increase funding for green innovation to bring down the costs of low-carbon energy sources, but they also need to adopt a range of other policies that address each of the other market failures. 

A national carbon tax is currently implemented in 27 countries around the world , including various countries in the EU, Canada, Singapore, Japan, Ukraine and Argentina. However, according to the 2019 OECD Tax Energy Use report, current tax structures are not adequately aligned with the pollution profile of energy sources. For example, the OECD suggests that carbon taxes are not harsh enough on coal production, although it has proved to be effective for the electricity industry. A carbon tax has been effectively implemented in Sweden ; the carbon tax is U$127 per tonne and has reduced emissions by 25% since 1995, while its economy has expanded 75% in the same time period. 

Further, organisations such as the United Nations are not fit to deal with the climate crisis: it was assembled to prevent another world war and is not fit for purpose. Anyway, members of the UN are not mandated to comply with any suggestions or recommendations made by the organisation. For example, the Paris Agreement , a historic deal within the United Nations Framework Convention on Climate Change (UNFCCC), says that countries need to reduce greenhouse gas emissions significantly so that global temperature rise is below 2C by 2100, and ideally under 1.5C. But signing on to it is voluntary, and there are no real repercussions for non-compliance. Further, the issue of equity remains a contentious issue whereby developing countries are allowed to emit more in order to develop to the point where they can develop technologies to emit less, and it allows some countries, such as China, to exploit this. 

3. Food Waste

A third of the food intended for human consumption – around 1.3 billion tons – is wasted or lost. This is enough to feed 3 billion people. Food waste and loss account for approximately one-quarter of greenhouse gas emissions annually ; if it was a country, food waste would be the third-largest emitter  of greenhouse gases, behind China and the US. 

Food production accounts for around one-quarter – 26% – of global greenhouse gas emissions. Our World in Data

Food waste and loss occurs at different stages in developing and developed countries; in developing countries, 40% of food waste occurs at the post-harvest and processing levels, while in developed countries, 40% of food waste occurs at the retail and consumer levels. 

At the retail level, a shocking amount of food is wasted because of aesthetic reasons; in fact, in the US, more than 50% of all produce thrown away in the US is done so because it is deemed to be “too ugly” to be sold to consumers- this amounts to about 60 million tons of fruits and vegetables. This leads to food insecurity , another one of the biggest environmental problems on the list. 

You might also like: How Does Food Waste Affect the Environment?

4. Biodiversity Loss

The past 50 years have seen a rapid growth of human consumption, population, global trade and urbanisation, resulting in humanity using more of the Earth’s resources than it can replenish naturally. 

A 2020 WWF report found that the population sizes of mammals, fish, birds, reptiles and amphibians have experienced a decline of an average of 68% between 1970 and 2016. The report attributes this biodiversity loss to a variety of factors, but mainly land-use change, particularly the conversion of habitats, like forests, grasslands and mangroves, into agricultural systems. Animals such as pangolins, sharks and seahorses are significantly affected by the illegal wildlife trade, and pangolins are critically endangered because of it. 

More broadly, a recent analysis has found that the sixth mass extinction of wildlife on Earth is accelerating. More than 500 species of land animals are on the brink of extinction and are likely to be lost within 20 years; the same number were lost over the whole of the last century. The scientists say that without the human destruction of nature, this rate of loss would have taken thousands of years. 

In Antarctica, climate change-triggered melting of sea ice is taking a heavy toll on emperor penguins and could wipe out entire populations by as early as 2100 , according to 2023 research.

You might also like: The Remarkable Benefits of Biodiversity

5. Plastic Pollution

In 1950, the world produced more than 2 million tons of plastic per year . By 2015, this annual production swelled to 419 million tons and exacerbating plastic waste in the environment. 

plastic packaging waste; plastic pollution; beverage single-use plastic bottles in landfill. Photo: PxHere

A report by science journal, Nature, determined that currently, roughly 14 million tons of plastic make their way into the oceans every year, harming wildlife habitats and the animals that live in them. The research found that if no action is taken, the plastic crisis will grow to 29 million metric tons per year by 2040. If we include microplastics into this, the cumulative amount of plastic in the ocean could reach 600 million tons by 2040.

Shockingly, National Geographic found that 91% of all plastic that has ever been made is not recycled, representing not only one of the biggest environmental problems of our lifetime, but another massive market failure. Considering that plastic takes 400 years to decompose, it will be many generations until it ceases to exist. There’s no telling what the irreversible effects of plastic pollution will have on the environment in the long run. 

You might also like: 8 Shocking Plastic Pollution Statistics to Know About

6. Deforestation

Every hour, forests the size of 300 football fields are cut down. By the year 2030, the planet might have only 10% of its forests; if deforestation isn’t stopped, they could all be gone in less than 100 years. 

The three countries experiencing the highest levels of deforestation are Brazil, the Democratic Republic of Congo and Indonesia. The Amazon, the world’s largest rainforest – spanning 6.9 million square kilometres (2.72 million square miles) and covering around 40% of the South American continent – is also one of the most biologically diverse ecosystems and is home to about three million species of plants and animals . Despite efforts to protect forest land, legal deforestation is still rampant, and about one-third of global tropical deforestation occurs in Brazil’s Amazon forest, amounting to 1.5 million hectares each year . 

deforestation

Agriculture is the leading cause of deforestation, another one of the biggest environmental problems appearing on this list. Land is cleared to raise livestock or to plant other crops that are sold, such as sugar cane and palm oil . Besides for carbon sequestration, forests help to prevent soil erosion, because the tree roots bind the soil and prevent it from washing away, which also prevents landslides. 

You might also like: 10 Deforestation Facts You Should Know About

7. Air Pollution 

One of the biggest environmental problems today is outdoor air pollution .

Data from the World Health Organization (WHO) shows that an estimated 4.2 to 7 million people die from air pollution worldwide every year and that nine out of 10 people breathe air that contains high levels of pollutants. In Africa, 258,000 people died as a result of outdoor air pollution in 2017, up from 164,000 in 1990, according to UNICEF . Causes of air pollution mostly comes from industrial sources and motor vehicles, as well as emissions from burning biomass and poor air quality due to dust storms. 

According to a 2023 study, air pollution in South Asia – one of the most polluted areas in the world – cuts life expectancy by about 5 years . The study blames a series of factors, including a lack of adequate infrastructure and funding for the high levels of pollution in some countries. Most countries in Asia and Africa, which together contribute about 92.7% of life years lost globally due to air pollution, lack key air quality standards needed to develop adequate policies. Moreover, just 6.8% and 3.7% of governments in the two continents, respectively, provide their citizens with fully open-air quality data.

In Europe, a recent report by the European Environment Agency (EEA) showed that more than half a million people living in the European Union died from health issues directly linked to toxic pollutants exposure in 2021.

More on the topic: Less Than 1% of Global Land Area Has Safe Air Pollution Levels: Study

8. Melting Ice Caps and Sea Level Rise

The climate crisis is warming the Arctic more than twice as fast as anywhere else on the planet. Today, sea levels are rising more than twice as quickly as they did for most of the 20th century as a result of increasing temperatures on Earth. Seas are now rising an average of 3.2 mm per year globally and they will continue to grow up to about 0.7 metres by the end of this century. In the Arctic, the Greenland Ice Sheet poses the greatest risk for sea levels because melting land ice is the main cause of rising sea levels.

Representing arguably the biggest of the environmental problems, this is made all the more concerning considering that last year’s summer triggered the loss of 60 billion tons of ice from Greenland, enough to raise global sea levels by 2.2mm in just two months . According to satellite data, the Greenland ice sheet lost a record amount of ice in 2019: an average of a million tons per minute throughout the year, one of the biggest environmental problems that has cascading effects. If the entire Greenland ice sheet melts, sea level would rise by six metres .

Meanwhile, the Antarctic continent contributes about 1 millimetre per year to sea level rise, which is one-third of the annual global increase. According to 2023 data, the continent has lost approximately 7.5 trillion tons of ice since 1997 . Additionally, the last fully intact ice shelf in Canada in the Arctic recently collapsed, having lost about 80 square kilometres – or 40% – of its area over a two-day period in late July, according to the Canadian Ice Service .  

Over 100,000 images taken from space allowed scientists to create a comprehensive record of the state of Antarctica’s ice shelves. Credit: 66 North/Unsplash

Sea level rise will have a devastating impact on those living in coastal regions: according to research and advocacy group Climate Central, sea level rise this century could flood coastal areas that are now home to 340 million to 480 million people , forcing them to migrate to safer areas and contributing to overpopulation and strain of resources in the areas they migrate to. Bangkok (Thailand), Ho Chi Minh City (Vietnam), Manila (Philippines), and Dubai (United Arab Emirates) are among the cities most at risk of sea level rise and flooding.

You might also like: Two-Thirds of World’s Glaciers Set to Disappear by 2100 Under Current Global Warming Scenario

9. Ocean Acidification

Global temperature rise has not only affected the surface, but it is the main cause of ocean acidification . Our oceans absorb about 30% of carbon dioxide that is released into the Earth’s atmosphere. As higher concentrations of carbon emissions are released thanks to human activities such as burning fossil fuels as well as effects of global climate change such as increased rates of wildfires, so do the amount of carbon dioxide that is absorbed back into the sea. 

The smallest change in the pH scale can have a significant impact on the acidity of the ocean. Ocean acidification has devastating impacts on marine ecosystems and species, its food webs, and provoke irreversible changes in habitat quality . Once pH levels reach too low, marine organisms such as oysters, their shells and skeleton could even start to dissolve. 

However, one of the biggest environmental problems from ocean acidification is coral bleaching and subsequent coral reef loss . This is a phenomenon that occurs when rising ocean temperatures disrupt the symbiotic relationship between the reefs and algae that lives within it, driving away the algae and causing coral reefs to lose their natural vibrant colours. Some scientists have estimated coral reefs are at risk of being completely wiped by 2050. Higher acidity in the ocean would obstruct coral reef systems’ ability to rebuild their exoskeletons and recover from these coral bleaching events. 

Some studies have also found that ocean acidification can be linked as one of the effects of plastic pollution in the ocean. The accumulating bacteria and microorganisms derived from plastic garbage dumped in the ocean to damage marine ecosystems and contribute towards coral bleaching.

10. Agriculture 

Studies have shown that the global food system is responsible for up to one-third of all human-caused greenhouse gas emissions, of which 30% comes from livestock and fisheries. Crop production releases greenhouse gases such as nitrous oxide through the use of fertilisers . 

60% of the world’s agricultural area is dedicated to cattle ranching , although it only makes up 24% of global meat consumption. 

Agriculture not only covers a vast amount of land, but it also consumes a vast amount of freshwater, another one of the biggest environmental problems on this list. While arable lands and grazing pastures cover one-third of Earth’s land surfaces , they consume three-quarters of the world’s limited freshwater resources.

Scientists and environmentalists have continuously warned that we need to rethink our current food system; switching to a more plant-based diet would dramatically reduce the carbon footprint of the conventional agriculture industry. 

You might also like: The Future of Farming: Can We Feed the World Without Destroying It?

11. Food and Water Insecurity

Rising temperatures and unsustainable farming practices have resulted in increasing water and food insecurity.

Globally, more than 68 billion tonnes of top-soil is eroded every year at a rate 100 times faster than it can naturally be replenished. Laden with biocides and fertiliser, the soil ends up in waterways where it contaminates drinking water and protected areas downstream. 

Furthermore, exposed and lifeless soil is more vulnerable to wind and water erosion due to lack of root and mycelium systems that hold it together. A key contributor to soil erosion is over-tilling: although it increases productivity in the short-term by mixing in surface nutrients (e.g. fertiliser), tilling is physically destructive to the soil’s structure and in the long-term leads to soil compaction, loss of fertility and surface crust formation that worsens topsoil erosion.

With the global population expected to reach 9 billion people by mid-century, the Food and Agriculture Organization of the United Nations (FAO) projects that global food demand may increase by 70% by 2050 . Around the world, more than 820 million people do not get enough to eat. 

The UN secretary-general António Guterres says, “Unless immediate action is taken, it is increasingly clear that there is an impending global food security emergency that could have long term impacts on hundreds of millions of adults and children.” He urged for countries to rethink their food systems and encouraged more sustainable farming practices. 

In terms of water security, only 3% of the world’s water is freshwater , and two-thirds of that is tucked away in frozen glaciers or otherwise unavailable for our use. As a result, some 1.1 billion people worldwide lack access to water, and a total of 2.7 billion find water scarce for at least one month of the year. By 2025, two-thirds of the world’s population may face water shortages. 

You might also like: Global Food Security: Why It Matters in 2023

12. Fast Fashion and Textile Waste

The global demand for fashion and clothing has risen at an unprecedented rate that the fashion industry now accounts for 10% of global carbon emissions, becoming one of the biggest environmental problems of our time. Fashion alone produces more greenhouse gas emissions than both the aviation and shipping sectors combined , and nearly 20% of global wastewater, or around 93 billion cubic metres from textile dyeing, according to the UN Environment Programme.

What’s more, the world at least generated an estimated 92 million tonnes of textiles waste every year and that number is expected to soar up to 134 million tonnes a year by 2030. Discarded clothing and textile waste, most of which is non-biodegradable, ends up in landfills, while microplastics from clothing materials such as polyester, nylon, polyamide, acrylic and other synthetic materials, is leeched into soil and nearby water sources. Monumental amounts of clothing textile are also dumped in less developed countries as seen with Chile’s Atacama , the driest desert in the world, where at least 39,000 tonnes of textile waste from other nations are left there to rot.

fast fashion waste

This rapidly growing issue is only exacerbated by the ever-expanding fast fashion business model, in which companies relies on cheap and speedy production of low quality clothing to meet the latest and newest trends. While the United Nations Fashion Industry Charter for Climate Action sees signatory fashion and textile companies to commit to achieving net zero emission by 2050, a majority of businesses around the world have yet to address their roles in climate change.

While these are some of the biggest environmental problems plaguing our planet, there are many more that have not been mentioned, including overfishing, urban sprawl, toxic superfund sites and land use changes. While there are many facets that need to be considered in formulating a response to the crisis, they must be coordinated, practical and far-reaching enough to make enough of a difference. 

You might also like: Fast Fashion and Its Environmental Impact

13. Overfishing

Over three billion people around the world rely on fish as their primary source of protein. About 12% of the world relies upon fisheries in some form or another, with 90% of these being small-scale fishermen – think a small crew in a boat, not a ship, using small nets or even rods and reels and lures not too different from the kind you probably use . Of the 18.9 million fishermen in the world, 90% of them fall under the latter category.

Most people consume approximately twice as much food as they did 50 years ago and there are four times as many people on earth as there were at the close of the 1960s. This is one driver of the 30% of commercially fished waters being classified as being ‘overfished’. This means that the stock of available fishing waters is being depleted faster than it can be replaced.

Overfishing comes with detrimental effects on the environment, including increased algae in the water, destruction of fishing communities, ocean littering as well as extremely high rates of biodiversity loss.

As part of the United Nations’ 17 Sustainable Development Goals (SDG 14) , the UN and FAO are working towards maintaining the proportion of fish stocks within biologically sustainable levels. This, however, requires much stricter regulations of the world’s oceans than the ones already in place. In July 2022, the WTO banned fishing subsidies to reduce global overfishing in a historic deal. Indeed, subsidies for fuel, fishing gear, and building new vessels, only incentivise overfishing and represent thus a huge problem. 

You might also like: 7 Solutions to Overfishing We Need Right Now

14. Cobalt Mining

Cobalt is quickly becoming the defining example of the mineral conundrum at the heart of the renewable energy transition . As a key component of battery materials that power electric vehicles (EVs), cobalt is facing a sustained surge in demand as decarbonisation efforts progress. The  world’s largest cobalt supplier is the Democratic Republic of Congo  (DRC), where it is estimated that up to a fifth of the production is produced through artisanal miners.

Cobalt mining , however, is associated with  dangerous workers’ exploitation and other serious environmental and social issues. The environmental costs of cobalt mining activities are also substantial. Southern regions of the DRC are not only home to cobalt and copper, but also large amounts of uranium. In mining regions, scientists have made note of high radioactivity levels. In addition, mineral mining, similar to other industrial mining efforts, often produces pollution that leaches into neighbouring rivers and water sources. Dust from pulverised rock is known to cause breathing problems for local communities as well.

15. Soil Degradation

Organic matter is a crucial component of soil as it allows it to absorb carbon from the atmosphere. Plants absorb CO2 from the air naturally and effectively through photosynthesis and part of this carbon is stored in the soil as  soil organic carbon (SOC). Healthy soil has a minimum of 3-6% organic matter. However, almost everywhere in the world, the content is much lower than that.

According to the United Nations, about 40% of the planet’s soil is degraded . Soil degradation refers to the loss of organic matter, changes in its structural condition and/or decline in soil fertility and it is often the result of human activities, such as traditional farming practices including the use of toxic chemicals and pollutants. If business as usual continued through 2050, experts project additional degradation of an area almost the size of South America. But there is more to it. If we do not change our reckless practices and step up to preserve soil health, food security for billions of people around the world will be irreversibly compromised, with an estimated 40% less food  expected to be produced in 20 years’ time despite the world’s population projected to reach 9.3 billion people.

Featured image by Earth.Org Photographer Roy Mangersnes

How can I contribute to a more sustainable planet?

  • 🗳️ Vote for Climate Action: Exercise your democratic rights by supporting candidates and policies that prioritize climate change mitigation and environmental protection. Stay informed with Earth.Org’s election coverage .
  • 👣 Reduce Your Carbon Footprint: Make conscious choices to reduce your carbon footprint . Opt for renewable energy sources, conserve energy at home, use public transportation or carpool, and embrace sustainable practices like recycling and composting.
  • 💰 Support Environmental Organizations: Join forces with organizations like Earth.Org and its NGO partners , dedicated to educating the public on environmental issues and solutions, supporting conservation efforts, holding those responsible accountable, and advocating for effective environmental solutions. Your support can amplify their efforts and drive positive change.
  • 🌱 Embrace Sustainable Habits: Make sustainable choices in your everyday life. Reduce single-use plastics, choose eco-friendly products, prioritize a plant-based diet and reduce meat consumption, and opt for sustainable fashion and transportation. Small changes can have a big impact.
  • 💬 Be Vocal, Engage and Educate Others: Spread awareness about the climate crisis and the importance of environmental stewardship. Engage in conversations, share information, and inspire others to take action. Together, we can create a global movement for a sustainable future.
  • 🪧 Stand with Climate Activists: Show your support for activists on the frontlines of climate action . Attend peaceful protests, rallies, and marches, or join online campaigns to raise awareness and demand policy changes. By amplifying their voices, you contribute to building a stronger movement for climate justice and a sustainable future .

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The global environment

The global environment is facing critical threats that are rapidly becoming more apparent with each passing day. These threats are causing serious damage to the planet’s ecosystems, natural resources, and the health of the people who inhabit it. These threats are caused by a variety of factors, including climate change, pollution, deforestation, and overpopulation. In this essay, we will delve into the critical threats to the global environment and the measures that can be taken to mitigate them.

Climate change is one of the most significant threats to the global environment. The rise in global temperatures caused by the release of greenhouse gases into the atmosphere is causing severe consequences, such as melting glaciers, rising sea levels, and more frequent and intense natural disasters. These effects have far-reaching consequences for the environment, affecting the world’s ecosystems, agriculture, and water supply. The increase in global temperatures is also impacting the health of people, causing heat waves, respiratory problems, and other health issues.

Another critical threat to the global environment is pollution. Pollution is caused by a range of factors, including industrial waste, agricultural runoff, and transportation emissions. The impact of pollution on the environment is significant, causing harm to the air, water, and soil. This pollution can have severe consequences for the health of people, causing respiratory problems, cancer, and other health issues.

Deforestation is another significant threat to the global environment. Deforestation is caused by the clearing of forests for agriculture, logging, and urban development. This removal of forests is causing a loss of habitat for wildlife, soil erosion, and the release of carbon dioxide into the atmosphere. Deforestation is also contributing to the rise in global temperatures, as trees absorb carbon dioxide from the atmosphere.

Overpopulation is also a critical threat to the global environment. The growth in the world’s population is putting a strain on the planet’s natural resources, such as land, water, and food. The demand for these resources is causing the depletion of natural resources, leading to issues such as droughts, famine, and conflicts over resources.

To mitigate these critical threats to the global environment, there are several measures that can be taken. These include reducing greenhouse gas emissions, investing in renewable energy sources, reducing pollution, promoting sustainable land use practices, and promoting family planning and reproductive health services to reduce population growth.

In conclusion, the global environment is facing critical threats that require urgent action to be taken. Climate change, pollution, deforestation, and overpopulation are all causing severe damage to the planet’s ecosystem and the health of the people who inhabit it. To mitigate these risks, we must take measures to reduce our impact on the environment, promote sustainable practices, and reduce our population growth. Only by taking urgent action can we protect our planet and ensure a sustainable future for generations to come.

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Q: What are critical threats to the global environment?

A: Critical threats to the global environment refer to issues that negatively impact the earth’s ecosystems and biodiversity. Examples include climate change, deforestation, pollution, overfishing, and habitat destruction.

Q: How does climate change impact the global environment?

A: Climate change has numerous negative impacts on the environment, including rising sea levels, extreme weather events, loss of biodiversity, and changes to ecosystems and habitats. It also contributes to the melting of glaciers and ice caps, which can lead to flooding.

Q: What can individuals do to help prevent critical threats to the global environment?

A: Individuals can take simple steps to reduce their environmental impact, such as using public transportation, conserving water, reducing energy consumption, and recycling. Supporting environmentally-friendly businesses and advocating for sustainable practices can also make a difference.

Q: What are the consequences of deforestation?

A: Deforestation can lead to soil erosion, loss of biodiversity, and changes to the local climate. It can also contribute to global climate change by releasing carbon dioxide into the atmosphere.

Q: How does overfishing impact the global environment?

A: Overfishing can lead to the depletion of fish populations and disrupt entire ecosystems. It can also impact the livelihoods of fishermen and coastal communities that depend on fishing for their income.

Q: How can governments and organizations address critical threats to the global environment?

A: Governments and organizations can take steps to address critical threats to the global environment by implementing policies and regulations that promote sustainability and conservation. This can include investing in renewable energy, protecting natural habitats, and promoting sustainable agriculture and forestry practices. Collaboration between governments, organizations, and individuals is also essential.

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Human, economic, environmental toll of climate change on the rise: WMO

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The relentless advance of climate change brought more drought, flooding and heatwaves to communities around the world last year, compounding threats to people’s lives and livelihoods, the UN’s World Meteorological Organization ( WMO ) said on Friday.

WMO latest State of the Global Climate report shows that the last eight years were the eight warmest on record , and that sea level rise and ocean warming hit new highs . Record levels of greenhouse gases caused “planetary scale changes on land, in the ocean and in the atmosphere”.

World Meteorological Organization April 21, 2023

The organization says its report, released ahead of this year’s Mother Earth Day , echoes UN Secretary-General António Guterres ’ call for “ deeper, faster emissions cuts to limit global temperature rise to 1.5 degree Celsius”, as well as “ massively scaled-up investments in adaptation and resilience, particularly for the most vulnerable countries and communities who have done the least to cause the crisis”.

WMO Secretary-General, Prof. Petteri Taalas, said that amid rising greenhouse gas emissions and a changing climate, “populations worldwide continue to be gravely impacted by extreme weather and climate events ”. He stressed that last year, “continuous drought in East Africa, record breaking rainfall in Pakistan and record-breaking heatwaves in China and Europe affected tens of millions, drove food insecurity, boosted mass migration, and cost billions of dollars in loss and damage.”

WMO highlights the importance of investing in climate monitoring and early warning systems to help mitigate the humanitarian impacts of extreme weather. The report also points out that today, improved technology makes the transition to renewable energy “cheaper and more accessible than ever” .

Warmest years on record

The State of the Global Climate report complements the Intergovernmental Panel on Climate Change ( IPCC ) Sixth Assessment report released a month ago, which includes data up to 2020.

WMO’s new figures show that global temperatures have continued to rise, making the years 2015 to 2022 the eight warmest ever since regular tracking started in 1850. WMO notes that this was despite three consecutive years of a cooling La Niña climate pattern.

WMO says concentrations of the three main greenhouse gases, which trap heat in the atmosphere – carbon dioxide, methane, and nitrous oxide – reached record highs in 2021, which is the latest year for which consolidated data is available , and that there are indications of a continued increase in 2022.

Indicators ‘off the charts’

According to the report, “melting of glaciers and sea level rise - which again reached record levels in 2022 - will continue to up to thousands of years ”. WMO further highlights that “Antarctic sea ice fell to its lowest extent on record and the melting of some European glaciers was, literally, off the charts”.

Sea level rise, which threatens the existence of coastal communities and sometimes entire countries, has been fuelled not only by melting glaciers and ice caps in Greenland and Antarctica, but also by the expansion of the volume of oceans due to heat. WMO notes that ocean warming has been “particularly high in the past two decades”.

Seasonal floods are a part of life in Chittagong, Bangladesh.

Deadly consequences

The report examines the many socio-economic impacts of extreme weather, which have wreaked havoc in the lives of the most vulnerable around the world . Five consecutive years of drought in East Africa, in conjunction with other factors such as armed conflict, have brought devastating food insecurity to 20 million people across the region.

Extensive flooding in Pakistan caused by severe rainfall in July and August last year killed over 1,700 people, while some 33 million were affected. WMO highlights that total damage and economic losses were assessed at $30 billion, and that by October 2022, around 8 million people had been internally displaced by the floods.

The report also notes that in addition to putting scores of people on the move, throughout the year, hazardous climate and weather-related events “worsened conditions” for many of the 95 million people already living in displacement .

Threat to ecosystems

Environmental impacts of climate change are another focus of the report, which highlights a shift in recurring events in nature, “such as when trees blossom, or birds migrate”. The flowering of cherry trees in Japan has been tracked since the ninth century, and in 2021 the date of the event was the earliest recorded in 1,200 years .

As a result of such shifts, entire ecosystems can be upended . WMO notes that spring arrival times of over a hundred European migratory bird species over five decades “show increasing levels of mismatch to other spring events”, such as the moment when trees produce leaves and insects take flight, which are important for bird survival.

The report says these mismatches “are likely to have contributed to population decline in some migrant species , particularly those wintering in sub-Saharan Africa”, and to the ongoing destruction of biodiversity.

Ending the ‘war on nature’

In his message on Earth Day, UN chief Mr. Guterres warned that “ biodiversity is collapsing as one million species teeter on the brink of extinction ”, and called on the world to end its “relentless and senseless wars on nature”, insisting that “we have the tools, the knowledge, and the solutions” to address climate change.

Last month, Mr. Guterres convened an Advisory Panel of top UN agency officials, private sector and civil society leaders, to help fast track a global initiative aiming to protect all countries through life-saving early warning systems by 2027. Stepped up coordinated action was announced, initially in 30 countries particularly vulnerable to extreme weather, including Small Island Developing States and Least Developed Countries.

Early Warnings for All

WMO Secretary-General Prof. Petteri Taalas said on Friday that some one hundred countries currently do not have adequate weather services in place, and that the UN Early Warnings for All Initiative “ aims to fill the existing capacity gap to ensure that every person on earth is covered by early warning services”.

Mr. Taalas explained that “achieving this ambitious task requires improvement of observation networks, investments in early warning, hydrological and climate service capacities.” He also stressed the effectiveness of collaboration among UN agencies in addressing humanitarian impacts of climate events, especially in reducing mortality and economic losses. 

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  • Environmental Issue Essay

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Essay on Environmental Issue

Environment is the surrounding of an Organism. This Environment in which an Organism lives is made up of various components like Air, Water, Land, etc. These components are found in fixed proportions to create a Harmonious Balance in the Environment for the Organism to live in. Any kind of undesirable and wanted change in the proportions of these components can be termed as Pollution. This Issue is increasing with every passing year. It is an Issue that troubles Economically, Physically and Socially. The Environmental problem that is worsening with each day needs to be addressed so that its harmful effects on Humans as well as the planet can be redressed. 

Environmental Issue

Our green world is now in Jeopardy. Humans depleted Natural Resources by polluting Water, Soil, and Air. We must tackle the challenges we have created by opening our eyes. The Environment has been profoundly impacted by Industrial Growth. People emit more Pollution for more convenience. Human actions have an impact on the Environment, both directly and indirectly. As a result, there is a symbiotic link between a creature and its surroundings. Let’s discuss some major Issues our Environment Issues which our Environment is facing nowadays:

Global Warming:

Foremost symptom of natural imbalance is Global Warming. When Greenhouse Gasses accumulate and cause the temperature to rise, we see the Greenhouse effect. It has an impact on the rising of the World Ocean level and the melting of Arctic ice. According to specialists, coastal countries and certain islands could be overwhelmed by water over several decades.

Increasing Population:

People require greater space and resources as their population grows, in order to meet all of their food and housing needs. To make room for pastures and agricultural fields, people began cutting down trees. Forests serve as the Earth's main lungs and the primary habitat for a wide range of animals, birds, and insects. Deforestation and Human activities have put a lot of forest species in Jeopardy.

Ozone Layer Depletion:

Depletion of the Ozone layer is a complex Issue that Humanity is grappling with. The Ozone layer absorbs UV radiation, which is damaging to Humans. Increased Ozone hole numbers result in more intense solar radiation and a rise in skin cancer.

Deforestation: 

Plants and trees are essential components of Human life. Everyone benefits from trees because they give air, food, and medicines. Forests are being cut down to meet rising demand. During the summer, natural wildfires are common. To maximize profit, people take down trees in an unethical manner.

Climate change is occurring at a faster rate than it was a century ago. The weather change has an impact on industrial advancement. Climate change has resulted in disastrous hurricanes, floods, and droughts. In recent years, many countries have been hit by a slew of natural disasters.

Polluted Environments can cause a variety of illnesses. Many species of flora and wildlife that are important to flora are threatened with extinction. Nature preserves balance, and all Organisms' feeding habits are linked in a food chain, as we all know. In areas with petroleum refineries, chemicals, iron and steel, non-metal products, pulp and paper manufacturers, and textile industries, the problem of industrial Pollution is often severe.

Causes of Environmental Issue

With the rise of the industries and the migration of people from villages to cities in search of employment, there has been a regular increase in the problem of proper housing and unhygienic conditions of living. These reasons have given rise in factors for Pollution. Environmental Pollution is of five basic types namely; Air, Water, Soil and Noise Pollution.

Air Pollution:  

Air Pollution is a major Issue in today’s world. The smoke pouring out of factory chimneys and automobiles pollute the air that we breathe in. Gasses like Carbon dioxide, Carbon Monoxide and Sulphur Dioxide are emitted which mix with air and cause great harm to the Human body, Flora and Fauna. The dry farm waste, dry grass, leaves and coal used as domestic fuels in our villages also produce harmful Gasses. Acid rain occurs due to excess Sulphur Dioxide in the Air. 

Water Pollution:  

Water Pollution is one of the most serious Environmental Issues. The waste products from the growing industries and sewage water are not treated properly before disposing into rivers and other water bodies, thus creating Pollution. Agricultural processes with excess fertilizers and pesticides also pollute the water bodies.

Soil or Land Pollution:  

The next source of Environmental Pollution is soil. Waste materials such as plastics, polythene, bottles, etc. cause land Pollution and render soil infertile. Moreover, dumping of dead bodies of men and animals, washing of clothes and utensils add to this Issue. It is a very dangerous aspect of Environment since it affects the fertility and food production of the area and the country.

Noise Pollution:  

This Issue is a very subtle form of Pollution. All Human activities contribute to noise Pollution to a large extent. Horns of the vehicles, loud speakers, music system, industrial activities contribute towards this Issue.

Problems like Ozone depletion, Global Warming, Greenhouse effect, change in climatic and weather conditions, melting of glaciers etc. are some more Issues in the Environment.

How to Minimize Environmental Issues?

To minimize this Issue, preventive measures need to be taken.

Principle of 3R’s:  

To save the Environment, use the principle of 3 R’s; Reuse, Reduce and Recycle. 

Reuse products again and again. Instead of throwing away things after one use, find a way to use them again.  Reduce the amount of waste products generated. 

Recycle:  

Paper, plastics, glass and electronic items can be processed into new products while using fewer natural resources and lesser energy.

To prevent and control measures of air Pollution including better-designed equipment and smokeless fuels should be used in homes and industries. 

More and more trees should be planted to balance the ecosystem and control Greenhouse effects.

Noise Pollution can be minimized by better designing and proper maintenance of vehicles. Industrial noise can be reduced by sound proofing equipment like generators, etc. 

To control soil Pollution, usage of plastic bags must be stopped. Sewage should be treated properly before using it as fertilizers and as landfills.  

Several measures can be adopted to control water Pollution. Some of them are that the water requirement can be minimized by altering the techniques involved. Water should be reused with treatment. The quantity of water waste discharged should be reduced. 

People, unfortunately, forget that we are a part of nature. We must live in harmony with nature and take care of it. We need to rethink how we consume natural resources. People must be aware that the natural world is on the verge of collapse. People must recognise that they are not the primary users of the Environment and construct Environmentally suitable homes. We must consider future generations and what will be left behind after we are gone. People come up with remedies to Environmental Issues. We recycle trash, develop electric automobiles, reduce air, water, and soil Pollution, and restore land erosion by planting new trees. But it is not enough; people must drastically alter their lifestyles until nature takes the last drastic measures.

Saving our planet from these Environmental Issues is the responsibility of every individual. If preventive measures are not taken then our future generation will have to face major repercussions. Government is also taking steps to create public awareness. Every individual should be involved in helping to reduce and control Pollution.

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FAQs on Environmental Issue Essay

1. What are the Major Environmental Issues?

The major environmental issues are environmental degradation, climate change, global warming, and greenhouse effects.

2. What is the Best Way to Control Greenhouse Effect?

Afforestation is the best way to control greenhouse effect.

3. What is the Principle of 3Rs?

The principle of 3Rs is Reuse, Reduce and Recycle.

4. How do you Minimize Soil Pollution?

Stopping the use of plastics can minimize soil Pollution.

  • Essay On Environment

Environment Essay

500+ words essay on environment.

Every year, on the 5th of June, we all celebrate World Environment Day. All living beings and non-living beings present on the Earth represent the environment. Plants, creatures, water, air, and other living things exist in our environment. Our environment gets influenced by climatic interaction, geomorphic measures, and hydrologic measures. The life of humans and animals is entirely dependent on climate. Our environment supports life on Earth. Everything we inhale, feel, and energy comes from the environment. The environment is considered a cover that helps sustain life on Earth. Among all the planets, it is our planet Earth that supports life.

Importance of Environment

Everyday, we get to hear about threats to the environment. Our environment includes everything from the forests to the oceans, which impacts our everyday life. It can be deforestation, pollution, soil erosion, etc., which needs to be addressed seriously.

1. Livelihoods of People depend on the Environment

Billions of people depend on the environment for their livelihood. For example, over 1.5 billion people depend on forests for food, medicine, shelter and more. Farmers turn to the woods when their crops fail. Almost two billion people earn a living from agriculture, and the other three billion people are on the ocean.

2. Environment Strength Food Security

Many negative consequences are encountered due to biodiversity loss, but weakened food security is extensive. If we lose our precious animals and plant species, we become more vulnerable to pests and diseases. Due to this, our health is at a greater risk of related illnesses like diabetes and heart disease. So, we should protect our oceans and forests to ensure food for every human being.

3. Trees Clean the Air

Pollution is a crucial issue, and every year, 7 million people die due to pollution. Polluted air impacts our health and lifespans, including behavioural problems, developmental delays, and diseases like Alzheimer’s and Parkinson’s. The trees work as a filter to remove air pollutants like carbon monoxide, nitrogen dioxide and sulphur dioxide while releasing oxygen.

Benefits of the Environment

Our environment provides us with enormous benefits which we can’t repay in our entire life span. The environment includes animals, water, trees, forest and air. Trees and forests filter the air and take in harmful gases, and plants purify the water, maintain natural balance and many others.

The environment keeps a regular check on its functioning as it helps regulate the vital systems essential for the ecosystem. It also helps in maintaining culture and quality of life on Earth. The environment regulates natural cycles that occur daily. These natural cycles balance living things and the environment. If we disturb these natural cycles, it will ultimately affect humans and other living beings.

For thousands of years, the environment helped humans, animals, and plants flourish and grow. It also provides us with fertile land, air, livestock, water and essential things for survival.

Cause of Environmental Degradation

Human activities are the primary cause of environmental degradation because most humans somehow harm the environment. The activities of humans that cause ecological degradation are pollution, defective environmental policies, chemicals, greenhouse gases, global warming, ozone depletion, etc.

Due to the industrial revolution and population explosion, the demand for environmental resources has increased, but their supply has become limited due to overuse and misuse. Some vital resources have been exhausted due to the extensive and intensive use of renewable and non-renewable resources. Our environment is also disturbed by the extinction of resources and the rapidly rising population.

The waste generated by the developed world is beyond the absorptive capacity of the environment. So, the development process resulted in environmental pollution, water, and the atmosphere, ultimately harming the water and air quality. It has also resulted in an increased incidence of respiratory and water-borne diseases.

To conclude, we can say that it is the environment that is keeping us alive. Without the blanket of the environment, we won’t survive.

Moreover, the environment’s contribution to life cannot be repaid. Besides, what the environment has done for us, we only have damaged and degraded it.

From our BYJU’S website, students can also access CBSE Essays related to different topics. It will help students to get good marks in their exams.

Frequently Asked Questions on Environment Essay

How can we protect the environment around us.

The first step is to change our mindset and stop littering public places. Take steps to reduce plastic usage as it is one of the biggest threats to our environment. Remember the slogan ‘Reduce, reuse and recycle’ and take a bold step towards protecting the environment. At all costs, avoid pollution of water, soil, and air.

How does the proper maintenance of the environment help human beings?

Human beings derive most of their daily needs from the environment. Moreover, environmental pollution can lead to increased risk of diseases, illness.

What are the main reasons for environmental pollution?

Over-usage of environmental and natural resources, reduction in environmental protection, destruction of natural resources are the main reasons for environmental pollution.

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September 11, 2024

‘Forever’ Pesticides Threaten Worse Environmental Harms Than DDT

A looming and poorly regulated PFAS threat comes from these chemicals’ common use in pesticides on farms nationwide

By Nathan Donley & Kyla Bennett

Two farm workers spraying insecticide on newly planted strawberries, on a farm along the Pacific Coast

GomezDavid/Getty Images

When the U.S. Environmental Protection Agency ended most uses of the notorious pesticide DDT back in 1972, it wasn’t just because of the poison’s then suspected links to cancer and serious reproductive effects in humans. Evidence also suggested that the chemical would bioaccumulate in living things and persist in the environment for centuries, threatening the health of our children, our children’s children and beyond—a disturbing reality confirmed by recent research .

Now, more than 50 years later, a growing body of research reveals the EPA is failing to fully address a similar, and potentially even greater, multigenerational chemical threat: the skyrocketing presence of perfluoroalkyl and polyfluoroalkyl substances (PFAS), aptly dubbed “ forever chemicals ,” in millions of gallons of pesticide products that are widely used across the U.S. PFAS contain chemical bonds that are extremely hard to break, making them difficult to get rid of once they are released into the world. PFAS contamination has been documented in hundreds of species of wildlife from the far reaches of the Arctic to the tropics in the Pacific Ocean. Very low concentrations of many PFAS have been linked to certain cancers, delays in childhood development and immune system dysfunction in humans. Earlier this year the EPA set drinking water regulations for six PFAS, with permissible levels in the excruciatingly minuscule “parts per trillion” range.When PFAS are present in pesticide products, many of which are sprayed on food crops and run off into nearby waterways, people can be exposed by eating contaminated food and drinking contaminated water.

In a newly published study , we and our colleagues from several environmental watchdog groups identified troubling gaps in the EPA’s pesticide approval process that have resulted in the agency failing to fully assess the harms from the growing number of these forever chemicals added to many pesticides. The implications of that glaring lapse could not be more dire. The gaps in pesticide safety oversight—including waiving immunotoxicity studies for pesticide active ingredients, not fully accounting for the partial transformation of pesticides into different chemicals over time and failing to assess the cumulative toxicity of PFAS pesticide use—must be rectified moving forward.

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Around one billion pounds of pesticide products are used each year across hundreds of millions of acres of U.S. farmland, making pesticides some of the nation’s most widely distributed pollutants. Simply put, if the goal was to spread forever chemicals as broadly as possible across the nation, there would likely be no more efficient way of doing so than putting them in pesticides.

Our study found that 14 percent of all conventional active ingredients in pesticides are PFAS. Worse yet, the long-lived chemicals comprise 30 percent of pesticide active ingredients approved in just the past 10 years, meaning that pesticide contamination with PFAS is trending upward and will likely increase in the coming years.

Although PFAS are known to leach from plastic storage containers into pesticides, contamination is more often the result of pesticide ingredients that are forever chemicals in their own right. PFAS pesticide ingredients and their “degradates”—what they turn into after partially breaking down—can stick around for decades or centuries and are incredibly potent. But the more potent and persistent the poison, the more likely it is to cause collateral damage.

The trend is clear: pesticide manufacturers are increasingly in the business of making “forever pesticides.” According to estimates by the U.S. Geological Survey, the nation annually uses 23 million to 35 million pounds of pesticide ingredients that are PFAS .

Yet what happens to those increasing loads of forever chemicals once they are sprayed on fields is not well understood. The little we do know is extremely troubling: although only about 20 percent of PFAS pesticides have been monitored in U.S. waterways, federal regulators have found nearly all of them in rivers and streams across the nation.

The increasing “PFASification” of pesticides and the resulting environmental contamination are partly the result of regulations that seek to mitigate immediate toxicity concerns without fully accounting for the length of time a chemical will persist in the environment or for the effects of its degradates.

Many researchers now believe that beyond a substance’s overt toxicities, its persistence alone should be a basis for its regulation, because any release of the substance into the environment will likely be irreversible. And as our understanding of PFAS toxicity grows over time, we have found these chemicals are often more harmful than previously thought.

Right now, with summer coming to an end in the U.S., many farmers have already applied pesticides to try to suppress weeds, insects or fungi. That means tens of millions of pounds of forever chemicals were added to the environment this year alone and will remain there, in one form or another, for the birth of your grandchildren’s grandchildren and generations thereafter.

It’s hard to imagine a more frightening indictment of the chemical-intensive agriculture that has been allowed to evolve in this country. But farmers are not the problem here. By not accounting for effects that will be realized decades or even centuries from now, EPA regulators are enabling this type of harmful agriculture.

The only reason the EPA was able to ban incredibly persistent chemicals such as DDT and PCBs in the 1970s was because the agency acknowledged their long-term harm to society and the environment and faced, full-on, the difficult task of navigating the political challenges inherent in banning any widely used pesticide product.

The agency tasked with the job of protecting our health and the environment must pivot and fully embrace its duty to reverse the fast-emerging threat posed by PFAS.

If the EPA fails to face this challenge, it will be responsible for burdening generations to come with increases in deadly, chronic diseases and toxic cleanup responsibilities that will, quite literally, last forever.

This is an opinion and analysis article, and the views expressed by the author or authors are not necessarily those of Scientific American.

Essay: To fix climate anxiety (and also climate change), we first have to fix individualism

graphite drawing of a child's palm touching an adult's, layered against tree branches, shadows, and water ripples

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How do you cope? I feel the sorrow, the quiet plea for guidance every time someone asks me this question. As an environmental reporter dedicated to helping people make sense of climate change, I know I should have answers. But the truth is, it took me until now to face my own grief.

My heart keeps breaking whenever I meet yet another child struggling with asthma amid orange, smoke-filled skies. I, too, am reeling from the whiplash of extreme drought and extreme rain , and I’m still haunted by the thought of a mother having to call each of her daughters to say goodbye as the homes around her cave to fire.

Each year, as I reflect on my own reporting on the floods that keep getting worse and the toxic pollution building up in all forms of life , I find myself questioning whether I could ever justify bringing my own children into this world. I agonize over the amount of plastic we can’t avoid using and mourn the monarch butterflies that have vanished. With each new heat record shattered, and each new report declaring a code red for humanity , I can’t help but feel like we’re just counting down the days to our own extinction.

In the face of sea level rise, can we reimagine California’s vanishing coastline?

“Climate anxiety” is the term we now use to describe these feelings, but I must confess, I was perplexed when I first heard these words a few years ago. Anger, frustration, helplessness, exhaustion — these are the emotions I come across more often when getting to know the communities bracing for, or recovering from, the devastation of what they’ve long considered home.

Then a college student asked me about climate anxiety. It came up again on social media, and again in personal essays and polls. This paralyzing dread was suddenly the talk of the town — but it has also, very noticeably, remained absent in some circles.

All this has led me to wonder: What, exactly, is climate anxiety? And how should we cope? At first blush, this anxiety seems rooted in a fear that we’ll never go back to normal, that the future we were once promised is now gone. But who this “normal” is even for (and what we’re actually afraid of losing) speaks to a much more complicated question:

Is this anxiety pointing to a deeper responsibility that we all must face — and ultimately, is this anxiety something we can transcend?

essay on threats to environment

For Jade Sasser, whose research on climate emotions has been grounded by her own experiences as a Black woman, these questions sharpened into focus during a research-methods seminar that she was teaching early last year at UC Riverside.

The class — all female, many from low-income immigrant communities — had been a fairly quiet group all quarter, so Sasser was surprised when the room completely erupted after she broached what she thought would be an academic, somewhat dispassionate discussion about climate change and the future.

Every student was suddenly talking, even yelling, over one another. Thought after thought tumbled out as they shared that not only does the future feel bleak when it comes to the job market, the housing crisis and whether their generation will ever be able to “settle down with kids” — but all this is many times worse when you’re not white, not documented and not born into a college-educated family.

How can they feel hopeful about the future, they asked, when, on top of everything already stacked against them, they also have to worry about wildfires, extreme heat and air pollution getting out of control?

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‘Climate Anxiety and the Kid Question’ asks: With American society feeling more socially and politically polarized than ever, is it right to bring another person into the world?

“It was literally a collective meltdown unlike anything I had ever experienced,” said Sasser, whose podcast and book, “ Climate Anxiety and the Kid Question, ” were largely inspired by her students that day. “I understood in that moment that you cannot assume someone does not also experience anxiety simply because their way of talking about it may not be the same as yours.”

It doesn’t help, she added, that many people don’t realize what they’re feeling is climate anxiety because the way we talk about it tends to center the experiences of white and more privileged people — people who have been insulated from oppression and have rarely (until now) had to worry about the safety of their own future.

“For a lot of people, climate anxiety looks a certain way: It looks very scared, it looks very sad, and it looks like a person who is ready, willing and able to talk about it,” Sasser said. “But for those who are experiencing many compounding forms of vulnerability at the same time, you can’t just pick out one part of it and say, ‘Oh, this is what’s causing me to feel this way.’”

A brave first step is to acknowledge privilege — and to support, and perhaps even learn, from those who have had to be resilient long before climate change became so overwhelming.

“For me, this work is a matter of survival,” said Kevin J. Patel, who grew up in South L.A. and has been fighting for climate justice since he was 11. He was contemplative, nodding, when I shared what I learned from Sasser, and he gently added that one privilege many communities don’t have is the ability to turn it off. Not everyone can go on a vacation or take a day to recharge, he said. Even having the time to talk about your sadness can be a luxury.

Feeling climate anxiety? These books offer glimmers of hope — and much-needed wisdom

Patel learned at a young age that not all communities get the same level of care. Growing up with hazy air, in a neighborhood hemmed in by the 10 and 110 freeways, Patel almost collapsed one day in front of his sixth-grade class when his heart suddenly started pounding at more than 300 beats per minute.

His parents, farmers from Gujarat, India, rushed Patel to the emergency room and held his hand while everyone around him thought he was dying. After months of hospital visits and procedures, doctors determined that he had developed a severe heart condition in large part due to the smog.

open quotation mark

‘For me, this work is a matter of survival.’

— Kevin J. Patel

As he learned to live with an irregular heartbeat, he found joy in his family’s tiny garden and marveled at all the ladybugs that gathered on the tulsi, a special type of basil. He taught his classmates that food came from the ground, not the grocery store, and together, they went on to form an environmental club.

Today, Patel speaks with the hardened wisdom of someone who has experienced much more than the typical 23-year-old. He’s constantly doing something — whether it’s supporting a neighbor, getting water bottle refill stations installed at his school, or turning the idea of a Los Angeles County Youth Climate Commission into reality. For years, he has guided other marginalized youth through OneUpAction , a grassroots environmental group that he built from the ground up.

Even if he doesn’t call it anxiety, he admits he sometimes has trouble focusing, and there’s a tenseness in his body that can be hard to shake off. But he’s usually able to turn it around by talking to his friends or elders, or by reciting his favorite proverb:

They tried to bury us, but they didn’t know we were seeds.

“It’s not about what I need, it’s about what my community needs,” he said. “There is joy in caring for one another. There is joy in coming together to fight for a future that we believe in.”

When talking about climate anxiety, it’s important to differentiate whether you’re assessing these emotions as a mental health condition, or as a cultural phenomenon.

Let’s start with mental health: Polls show climate anxiety is on the rise and that people all around the world are losing sleep over climate change. Organizations like the Climate-Aware Therapist Directory and the American Psychiatric Assn. have put together an increasing number of guides and resources to help more people understand how climate change has affected our emotional well-being.

Poll shows Californians’ climate anxiety is on the rise

Just knowing that climate change is getting worse can trigger serious psychological responses. And the shock and trauma are all the more great if you’ve already had to live through the kinds of disasters that keep the rest of us up at night.

It’s also important to note that social media has magnified our sense of doom. What you see on social media tends to be a particularly intense and cherry-picked version of reality, but studies show that’s exactly how the vast majority of young people are getting their information about climate change: online rather than in school.

But you can’t treat climate anxiety like other forms of anxiety, and here’s where the cultural politics come in: The only way to make climate anxiety go away is to make climate change go away, and given the fraught and deeply systemic underpinnings of climate change, we must also consider this context when it comes to our climate emotions. How we feel is just as much a product of the narratives that have shaped the way we perceive and respond to the world.

“Climate anxiety can’t be limited to just a clinical setting — we have to take it out of the therapy room and look at it through a lens of privilege, and power, and the economic, historical and social structures that are at the root of the problem,” said Sarah Jaquette Ray, whose book “ A Field Guide to Climate Anxiety ” is a call to arms to think more expansively about our despair. “Treating a person’s climate anxiety without challenging these systems only addresses the symptoms, not the causes... and if white or more privileged emotions get the most airtime, and if we don’t see how climate is intersecting with all these other problems, that can result in a greater silencing of the people most impacted.”

Graphite drawing of an open palm holding a leaf. The veins of the leaf are layered with the veins of the hand.

Ray, an environmental humanist who chairs the environmental studies program at Cal Poly Humboldt, also emphasized that our distress can actually be a catalyst for much-needed change. These emotions are meant to shake us out of complacency, to sound the alarm to the very real crisis before us. But if we don’t openly talk about climate anxiety as something that is not only normal but also expected, we run the risk of further individualizing the problem. We already have a tendency to shut down and feel alone in our sorrows, which traps us into thinking only about ourselves.

“One huge reason why climate anxiety feels so awful is this feeling of not being able to do anything about it,” Ray said. “But if you actually saw yourself as part of a collective, as interconnected with all these other movements doing meaningful things, you wouldn’t be feeling this despair and loneliness.”

The trick to fixing climate anxiety is to fix individualism, she said. Start small, tap into what you’re already good at, join something bigger than yourself.

And by fixing individualism, as many young activists like Patel have already figured out, we just might have a better shot at fixing climate change.

Let us consider, for a moment, how the words that we use can also limit the way we think about our vulnerability and despair.

Something as simple as the “climate” in “climate anxiety” and how we define “environment” can unintentionally reinforce who we center in the conversation.

“In Nigeria, what we call our environment — it’s not just trees and mountains — it’s also about our food, our jobs, the biodiversity that gives us the life support that we need to thrive every day. That’s what we call our environment; it’s about our people,” said Jennifer Uchendu, who founded SustyVibes , a youth-led sustainability group based in her home country, as well as the Eco-Anxiety in Africa Project , which seeks to validate the emotions and experiences of communities often overlooked in climate conversations. “So if people are being oppressed by the system, it is still linked to our idea of the environment.”

Many of Uchendu’s elders have expressed a lifetime of feeling frustrated and powerless, for example, but she said they didn’t immediately connect these feelings to climate change because “climate anxiety” sounded to them like a new and elite phenomenon.

Editorial: California can make climate polluters pay for the mess they have made of Earth

We hear so often today that climate change is the existential crisis of our time, but that dismisses the trauma and violence to all the people who have been fighting to survive for centuries. Colonization, greed and exploitation are inseparable from climate change, Uchendu said, but we miss these connections when we consider our emotions only through a Western lens.

For Jessa Calderon, a Chumash and Tongva songwriter, these disconnects are ever-present in the concrete-hardened rivers snaking through Los Angeles, and the sour taste of industrialization often singeing the air. In her darkest moments, her heart hurts wondering if her son, Honor, will grow up to know clean water.

Her voice cracked as she recalled a brown bear that had been struck dead on the freeway near the Cajon Pass. As she watched strangers gawk at the limp body and share videos online, she wished she had been able to put the bear to rest and sing him into the spirit world.

“If we don’t see them as our people, then we have no hope for ourselves as a people, because we’re showing that we care about nothing more than ourselves,” she said. “And if we care about nothing more than ourselves, then we’re going to continue to devastate each other and the land.”

It is not too late to turn your climate anxiety into climate empathy. Acknowledging the emotional toll on people beyond yourself can be an opportunity to listen and support one another. Embracing our feelings — and then finding others who also want to turn their fear into action — can be the missing spark to much-needed social and environmental healing.

There is also wisdom to be learned in the songs and traditions of past movements, when people banded together — for civil rights, for women’s suffrage — and found ways to keep hope alive against all odds. And the more we look to the young people still caring for their elders in Nigeria, and to our Indigenous neighbors who continue to sing and love and tend to every living being, the better we might also comprehend the resilience required of all of us in the warming years ahead.

Opinion: Here are the places that could become too hot for humans due to climate change

So how should we cope? For Patel, living with his irregular but unwavering heartbeat, he finds strength in the words of adrienne maree brown, who famously wrote in “ Emergent Strategy ” that in the same way our lives are shaped today by our ancestors, we ourselves are future ancestors. Calderon, who similarly taught her son to leave this Earth better with every passing generation, confided to me that on the days when the sorrow feels too great, she sneaks off to plant native manzanita seeds in neighborhoods stripped of plants and trees.

As I’m reminded of all the love we can still sow for the future, I think of Phoenix Armenta, a longtime climate justice organizer in Oakland who has inspired numerous people, including myself, to take heart in all the times we actually got it right. (Remember acid rain? It was a huge problem, but collective action inspired multiple countries to join forces in the 1980s, and we did what needed to be done.)

“Imagine what kind of world you actually want to live in and start working to make that happen,” said Armenta, who recently made the switch to government planning to help more communities find their voice and determine their own visions for the future.

To grieve the world as we know it is to miss out on opportunities to transform our world for the better. To believe we have nothing left to hope for is a self-fulfilling void. We must find the courage to care, to change, to reimagine the systems that got us into such a devastating crisis in the first place — and we must allow ourselves to dream.

“But it can’t just be my dream, or your dream. It has to be our collective dream,” Armenta said. “I’ve known for a very long time that I can’t save the world, but we can save the world together.”

More to Read

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Sept. 11, 2024

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Sept. 9, 2024

essay on threats to environment

Rosanna Xia is an environment reporter for the Los Angeles Times, where she specializes in stories about the coast and ocean. She was a Pulitzer Prize finalist in 2020 for explanatory reporting, and her award-winning book, “ California Against the Sea ,” has been praised as a poetic and mind-expanding exploration of what we stand to lose in the face of rising water.

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Why is violence against environmental defenders getting worse? Five things to know

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  • Global Witness’s latest annual report shows that at least 196 people were killed last year defending the environment, up from 177 killed in 2022.
  • Latin America is still the most violent region for defenders, with 166 killed in 2023. But other regions have been showing worrying trends, as well.
  • The report calls for better data collection and transparency, which could help identify who is being targeted with violence and how.

In January 2023, two men mysteriously disappear after speaking out against pollution from a controversial iron ore mine in Michoacán, Mexico.

The following March, climate change protesters in Austria and Germany are beaten and pepper sprayed , and some have their homes raided by law enforcement.

In September, a pair of youth environmental advocates are abducted by armed men and interrogated for days about their work fighting construction of a new airport in the Philippines.

All across the world, environmental defenders continue to experience censorship, threats, physical attacks, kidnappings, disappearances and even death because of their work fighting climate change, deforestation, pollution and other environmental issues.

Since the adoption of the Paris Agreement in 2015, more than 1,500 environmental defenders have been killed for their work, according to Global Witness, a human rights and environmental NGO. The figures for 2023 look like more of the same. At least 196 people were killed last year defending the environment, up from 177 in 2022. And those figures are considered a low-end estimate.

Global Witness has been tracking violence against environmental defenders since 2012, revealing an often-overlooked problem in many parts of the world where local communities are the last line of defense against major drivers of ecological destruction.

“Murder continues to be a common strategy for silencing defenders and is unquestionably the most brutal,” Global Witness’s report for 2023 said. “But … lethal attacks often occur alongside wider retaliations against defenders who are being targeted by government, business and other non-state actors with violence, intimidation, smear campaigns and criminalization. This is happening in every region of the world and in almost every sector.”

Trends in violence continue to evolve, and each region faces its own unique challenges, from organized crime and corruption to granting land rights and regulating the private sector. Below, Mongabay breaks down five important takeaways from the 2023 data.

1. Latin America is still the most violent region for defenders, by far

At least 166 environmental defenders were killed in Latin America last year, or around 85% of the world total.

Colombia was the deadliest country for defenders for the second year in a row, with 79 reported killings, or 40% of all cases. Most of the violence took place in departments like Cauca, Nariño and Putumayo , where mining, logging and cattle ranching are intertwined with armed conflicts and drug trafficking. More than half of the killings are believed to be connected to organized crime groups, although the report noted that exact causes are often difficult to confirm.

Wide-ranging rural reforms and peace building with armed groups have been a key part of Colombian President Gustavo Petro’s platform since he took office in 2022. But negotiations with the National Liberation Army, a guerrilla group, have dragged on longer than expected, and rural communities have paid the price. At least 31 of the defenders killed in Colombia last year were Indigenous people and six were from Afro-descendant communities.

“Despite the effort and political will, the wait on the ground has become much longer than desired and the slow pace of decisions and bureaucracy doesn’t match the speed at which the war is advancing in almost all departments of the country,” Somos Defensores, a Colombian NGO, said in an annual report . “While the civilian population waits for some progress in terms of guarantees and peace, the risks continue to increase, as does the number of lives taken by violence.”

essay on threats to environment

Brazil and Mexico had the two next highest rates of killings last year, with 25 and 18 respectively. However, those numbers were down from 2022. In both countries, the violence stemmed from opposition to mining and logging, as well as land conflicts.

Over the past decade, Central America has quietly emerged as one of the most dangerous places to defend the environment. At least 36 defenders were killed there in 2023, representing a fifth of all cases, even though the region is home to less than 1% of the global population. Of those, 18 defenders have been killed in Honduras, which has the highest rate of killings per capita of any country.

Organized crime in countries like Guatemala and Honduras, combined with authoritarian crackdowns by the government in Nicaragua, may explain why the numbers are so high. Even Panama saw four people die during national protests last year, an unusual occurrence for a country that has had only one other reported defender death since 2012.

2. Several other regions of the world show worrying trends as well

While no region is more dangerous for defenders than Latin America, other parts of the world still reported high rates of violence against protesters, journalists and activists.

In the Philippines, at least 17 defenders died for their work last year, bringing the country’s total to 468 since 2012. Forced disappearances, in which someone is kidnapped or jailed by the state without sharing their whereabouts, often indefinitely, have become increasingly common since President Ferdinand Marcos Jr., the son of a former dictator, took office in June 2022, the report said. Last year, there were at least seven cases.

Other Asian countries where defenders were slain last year include India and Indonesia, with five and three killings respectively. Across Africa, four defenders were killed last year, bringing the total to 116 since 2012. Most of them, at a count of 74, have been park rangers in the Democratic Republic of Congo, where poachers and armed groups continue to be active .

essay on threats to environment

3. Private industry is a main driver of the violence. But governments play a role too.

Much of the violence last year stemmed from communities’ opposition to infrastructure development, and to logging and mining operations run by private companies with permits granted by the government. Global Witness confirmed that five deaths were also connected to the fishing industry, two to hydropower, and four to agribusiness.

Companies are supposed to carry out environmental impact studies before breaking ground while also consulting with residents about how a project will affect their lives. Just as importantly, governments are supposed to ensure companies comply with those regulations. But in numerous cases across the globe, companies and governments appear to be not just failing to meet those standards but actively avoiding them, the report said.

“The breach of these fundamental rights by governments and companies in pursuit of profit is not just minor collateral damage,” said Nonhle Mbuthuma, founder of the Amadiba Crisis Committee in South Africa. “Their actions have life-changing consequences for us all.”

essay on threats to environment

Out of all industry sectors, mining was the deadliest last year. At least 25 defenders were killed opposing mining operations, according to the report, the overwhelming majority of them in Asia and Latin America.

Around 40% of all mining-related killings since 2012 have taken place in Asia, where numerous countries are racing to extract minerals like nickel, tin and bauxite to supply the clean-energy revolution.

In Mexico, nearly half of all killings of defenders involved mining operations, largely in the Pacific states of Jalisco, Colima and Michoacán, where deposits of silver and other precious metals have attracted international mining companies as well as cartels and other organized crime groups. The country has also seen several forced disappearances tied to mining, the report said.

4. The U.S., U.K. and EU are turning up the heat on environmental defenders

They might not have high rates of slain defenders like other parts of the world, but the U.S., U.K. and EU have spent the last several years introducing ways to crack down on people protesting in defense of the environment.

In the U.S., more than 20 states have passed laws that aim to protect “critical infrastructure” from protesters who obstruct roads, power plants and pipelines. Protesters face heavy fines for trespassing as well as felony charges that could land them in jail for years, the report said.

Europe has introduced similar laws, including the U.K.’s Public Order Act, which gives law enforcement more power to break up protests that block traffic or interfere with other infrastructure. Its Police, Crime, Sentencing and Courts Act of 2022 allows law enforcement to more strictly prevent protesters from “intentionally or recklessly causing public nuisance,” such as making too much noise.

essay on threats to environment

All of this has helped create a culture of criminalization of environmental defenders, the report said. In Germany, officials have raided homes and held activists in preventative detention before protests could even be held. Many media outlets and government agencies vilify protest movements.

“Toxic narratives are being spun and damaging labels pinned on campaigners the world over, disrupting the effective functioning of civil society,” the report said. “Defenders are being classified as climate extremists, and considered terrorist threats, amid increases in prosecutions, police brutality and judicial intimidation.”

5. The tools already exist to address violence against environmental defenders. Officials just need to use them.

In one sense, the solution to protecting environmental defenders is a simple one: Enforce the laws that recognize defenders and provide them access to justice when their rights are threatened. There are already a long list of international legal mechanisms at governments’ disposal, including the Convention on Access to Information, the Aarhus Convention, the Escazú Agreement, the U.N. Special Rapporteur procedures, and the Universal Declaration of Human Rights.

But implementation has been slow — and often easier said than done.

Global Witness said laws need to be based on a deep understanding of the challenges faced by defenders on the ground, which is why it’s so important to beef up data collection and transparency, identifying which demographics are being targeted and how.

The private sector has to carry out similar monitoring, it said, while establishing a clear “red line” for when an operation must be suspended or shut down. Businesses should have a zero-tolerance policy toward violence.

“To protect defenders, we need countries to systematically document attacks and reprisals,” the report said. “New and better data on these attacks and their causes would enable governments to improve existing laws and mechanisms.”

Banner image: Photos of human rights lawyer Ricardo Arturo Lagunes Gasca, who disappeared last year in Mexico. Phot by Luis Rojas via Global Witness.

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Koalas, other wildlife under threat as forests in Australia cleared for cattle

essay on threats to environment

SYDNEY – Large-scale deforestation in Australia – mainly for cattle farming – has prompted calls for tougher oversight and incentives for farmers who protect forests, amid concerns about the dire toll on the environment and on threatened species like koalas.

Despite the country backing a United Nations commitment in 2021 to end deforestation by 2030, land clearing is still continuing on a massive scale, especially in eastern Australia.

In the five years to 2023, Australia lost 4.8 million hectares of tree cover, according to the Global Forest Watch website. This was the world’s seventh-largest loss of tree cover, behind Russia, which lost 28.9 million hectares; Canada, which lost 18.9 million hectares; Brazil, which lost 18 million hectares; and the US, Democratic Republic of Congo and Indonesia. 

The north-eastern state of Queensland alone recorded clearing of 323,676ha – more than four times the size of Singapore – in the 12 months to June 30, 2022, the most recent year for which data is available.

In New South Wales (NSW), one of the country’s other major offenders, 26,735ha of woodland was cleared in 2021, according to data for the most recent year available.

Such land clearing is damaging and destroying habitats of native species and harming local ecosystems.

Loss of habitat contributed to a decision by the federal government in 2022 to declare koalas an endangered species, and has led to about 100 million animals each year dying or being seriously harmed in NSW and Queensland, according to a study in July commissioned by Greenpeace.

Professor Martine Maron, an expert on biodiversity and conservation science from the University of Queensland, told The Straits Times that laws in Australia were failing to prevent deforestation.

Hundreds of thousands of hectares of regrown forest are cleared each year in Queensland, she said, as well as tens of thousands of hectares of old-growth forest. And, “once it is gone, you can’t get it back”.

“Habitat destruction is the current biggest threat to biodiversity in Australia,” she said. “Clearing vegetation affects soil structure and soil erosion and the water quality in the Great Barrier Reef. Loss of tree cover affects regional rainfall and makes drought worse.”

She noted: “There is a whole suite of environmental impacts that occur from the clearing of native vegetation.”

Deforestation is largely governed by state laws, but state governments are often caught between the need to support the farming sector and protecting the environment.

A study by a University of Queensland researcher published on Aug 20 found that 75 per cent of deforestation cases were allowed to proceed without state assessment under a range of exemptions, such as clearing forests that had been previously cut and were regrowing.

Environmental groups have been pushing major supermarket chains and other large buyers of beef in Australia to stop selling products from deforested farms. Woolworths, one of the country’s two main supermarket chains, announced on Aug 28 that it will make the change from Dec 30.

But farmers in Queensland have objected to reports of widespread land clearing, with some beef producers saying deforestation should be defined only as clearing forests grown before 1990, the year in which the state and federal authorities introduced major vegetation management reforms. 

Mr Michael Guerin, the head of AgForce, an association that represents Queensland’s farmers, said that Australia has diverse bioregions and should not adopt a single definition of land clearing, noting that clearing trees in some regions can assist wildlife.

He said the amount and type of land clearing should depend on the specific region’s environmental needs.

“Most of the land clearing in Queensland is not problematic,” he said. “Our challenge to those who seek to vilify us is to think about what is required in each bioregion... If you have one definition, you won’t provide the best environmental outcomes.”

Australia is a major producer of beef and was the world’s second-biggest supplier in 2023 after Brazil, accounting for 14 per cent of global exports.

In the year to June 30, Australia exported A$14.7 billion (S$12.8 billion) worth of beef, including A$3.4 billion to the US, A$2.7 billion to China, A$2.3 billion to Japan and A$2.1 billion to South Korea, and almost A$1 billion to Indonesia, according to a report released by Rural Bank on Sept 10.

Australia had 27.8 million beef cattle as at June 30, 2023, of which 13.2 million were in Queensland and 5.9 million in NSW.

Prof Maron said she believed Queensland and other governments should offer incentives for farmers to protect and maintain forests – such as tax relief or stewardship payments – rather than relying only on regulations that are failing to prevent clearing.

Much of the clearing is captured by satellite after it has occurred.

“We need to see incentives where there are benefits and rewarding of landholders, so it is not just about regulation and punishment, but it is also about rewards,” Prof Maron said.

Australia has one of the worst records of species extinction, accounting for about 35 per cent of the world’s recorded mammal extinctions.

The federal government is seeking to create an environmental protection agency that could have increased powers to enforce environmental laws. The government hopes to pass legislation enabling the agency before the next election, due in May 2025.

Environmental groups have called for the authorities to close loopholes that allow landholders to remove forest from land that has been previously cleared.

Mr Glenn Walker, the head of nature at Greenpeace, said that Australia has “one of the worst rates of deforestation in the world”.

“The rate of hectares bulldozed is on a global scale,” he said.

“Despite attempts at state level to tighten regulations, there remain significant loopholes that mean it continues.”

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RFK Jr. Made His Mark As An Environmental Lawyer. Now He’s All In On MAGA.

Chris D'Angelo

Senior Reporter, HuffPost

essay on threats to environment

As Robert F. Kennedy Jr. spoke about the spiritual connection he feels toward the natural world and humankind’s duty to protect it, Tucker Carlson was left visibly starstruck.

“That is where we sense the divine. God talks to us through the fishes, the birds, the leaves. They’re all words from our creator,” Kennedy told Carlson in an Aug. 26 interview . “That is why we preserve nature.”

“Yes!” Carlson agreed, emphatically.

“It’s not because of the quantity of carbon,” Kennedy added, condemning the environmental movement’s focus on planet-warming carbon emissions.

“I feel what you said so deeply I can hardly even express it,” Carlson marveled.

Kennedy, who worked for decades as an environmental attorney, fancies himself as an “ old-school environmentalist ” — apparently one who thinks that humans can somehow safeguard the environment while ignoring carbon pollution, the 13,000-pound elephant in the room that is wreaking havoc on all the nature that Kennedy purports to care about so deeply.

Numerous former colleagues in the environmental movement have come forward to condemn Kennedy, arguing he lost his way long ago and forfeited any claim to the title of environmentalist. After suspending his own presidential campaign last month, Kennedy became a surrogate for Republican nominee Donald Trump , who has repeatedly dismissed climate change as a “hoax” and as president dismantled dozens of environmental rules and regulations to the benefit of corporate polluters.

Dan Reicher, a senior researcher at Stanford University’s Woods Institute for Environment, worked with Kennedy at the Natural Resources Defense Council in the late-1980s and early 1990s. The man he knew then, whom he called a “strong advocate who spoke his mind on environmental protection” and with whom he bonded over a shared passion for kayaking, is not the same man today.

Kennedy got his start in the environmental movement as a volunteer at NRDC, which fulfilled a community service requirement of his probation stemming from a heroin possession charge in 1983, as a recent New Yorker profile detailed. Later he was hired as an attorney at Riverkeeper, where he helped lead the organization’s fight against companies polluting the Hudson River in New York. Over his long career in environmental law and advocacy, Kennedy battled against oil and mining giants, the military, factory farms and pesticide manufacturers, and Canadian and Chilean dam projects.

“That Bobby is gone,” Reicher said, and his environmental advocacy has been replaced with “unhinged craziness.”

“Just look at his anti-vaccine crusade, his anti-government rhetoric and his current work with some of the strongest climate denialists we know in this country,” he said. “It’s hard to see how you can square his case that he’s pursuing environmental protection when he’s aligned himself with one of the strongest anti-environment leaders this country has ever seen.”

Reicher joined dozens of other former NRDC colleagues in signing onto an open letter in April calling for Kennedy to drop his independent presidential bid. The letter, titled “Earth to RFK, Jr” and which the NRDC’s political action arm ran as ads in several swing state newspapers, condemned Kennedy’s record of “spinning anti-vaccination conspiracy theories, denying science, and putting lives at risk.”

Reicher sees Kennedy as having adopted “a narrow, boutique view of environmental protection” that ignores the biggest environmental crisis the world faces.

“He’ll wax eloquent about these kind of narrow issues in the broader environmental protection sphere but never get around to even acknowledging, to say nothing of pushing harder to address, the existential threat of climate change,” he said.

Kennedy’s press team did not respond to HuffPost’s request for comment.

Five siblings called his endorsement of Trump “a betrayal of the values that our father and our family hold most dear.”

Republican presidential nominee Donald Trump is greeted by Robert F. Kennedy Jr. on stage during an Aug. 23 campaign event at Desert Diamond Arena in Glendale, Arizona.

For a clear view of Kennedy’s fall from environmental grace, look no further than his interview with Carlson, when Kennedy condemned environmentalists for adopting what he calls a “carbon orthodoxy,” the idea that everything is measured by its carbon footprint.

“When we destroy nature, we diminish our capacity to sense the divine,” he said. “It’s not about quantifying stuff. That’s what the devil does; he quantifies everything. That is what he wants us doing — put a number on it. And the reason we’re preserving these things is because we love our children. It’s because nature enriches us, it enriches us economically, spiritually, culturally and historically. It connects us to those ten thousand generations of human beings that were here before there were laptops.”

What Kennedy conveniently failed to mention or grapple with is the fact that climate change is devastating communities the world over, with economic damages forecast to reach $38 trillion annually by the middle of this century. For many, confronting the threat is both a spiritual and cultural endeavor.

Kennedy went on to attack the modern environmental movement with several falsehoods.

He declared that “offshore wind is exterminating the whales,” parroting the evidence-free talking point of some of the nation’s most hard-line organizations denying climate change.

He said the environmental movement “no longer talks about toxics anymore, they don’t care about it, they don’t care that we’re mass-poisoning our children.” Every major environmental organization has a toxics program.

👀 Tucker Carlson to RFK Jr — both men nearly moved to tears. “I hope what you just said is chopped up and put all over every social media platform in the world!” Well here it is. What Kennedy said in the BEST 12 mins of Tucker… maybe ever. Stunning. LFG. #MAHA 🇺🇸 pic.twitter.com/vLXrxpzcvF — Indy Cat 2000 (@TheFinalBot1) August 27, 2024

John Walke, the director of NRDC’s clean air program, said in a post to X (formerly Twitter) that Kennedy has “absolutely no idea what he is talking about,” noting that the environmental nonprofit has multiple staff working exclusively on toxic chemicals.

“I’ve worked on reducing toxic air pollution for 24 years. Hell I testified NEXT TO Bobby in Congress about toxics,” Walke wrote. “His bid to advance himself & rehabilite [sic] Trump — ignoring, forgetting all the correct & harsh criticisms he directed at Trump’s anti-environmentalism — now means demonizing environmentalists with lies, trafficking in conspiracies.”

Kennedy argues America’s national climate policy should be “restoring soils,” not curbing carbon emissions — which, ironically, are contributing to the degradation of soils around the globe. In other words, a fix-it-after-it’s-a-problem approach.

“If you want to make Americans fight each other, talk about carbon,” Kennedy told Carlson. “If you want to bring Americans together, talk about habitat protection.”

Kennedy’s entrance into the Make America Great Again movement has given rise to a similar slogan meant to boil down what Kennedy brings to the table: Make America Healthy Again. But in backing Trump, Kennedy is teaming up with someone with a well-documented and abysmal environmental and public health record. The Trump administration worked to weaken safeguards for nearly 35 million acres , a number that the left-leaning Center for American Progress said earned Trump the title of the most “anti-nature” president in U.S. history. In January 2021, The New York Times compiled a list of more than 100 environmental rollbacks under Trump, including rules meant to safeguard air, water and wildlife habitat, as well as prevent exposure to toxic chemicals.

In a meeting with oil and gas executives earlier this year, Trump vowed to fulfill the fossil fuel industry’s wish list and undo President Joe Biden ’s climate and green energy policies if they donated $1 billion to his reelection campaign. It is the very sort of corporate capture of government that Kennedy decries at every turn.

Kennedy expects to be able to influence a future Trump administration on environmental issues.

“I have found to my surprise that many people on the Trump team, including President Trump himself, care about the same environmental issues I do,” Kennedy wrote in a post to X late last month. “Furthermore, these issues can help to unify our nation ― because almost everyone wants clean air, water, food, and soil. Almost everyone values thriving ecosystems and wildlife. Environment was a unifying issue in the 1960s, supported by Democrats and Republicans alike. I am committed to reviving that consensus in the next Trump administration.”

I am an old-school environmentalist -- a lover and protector of nature. The Democrats obsess about counting CO2, while neglecting urgent issues such as the chemicals in our food, soil, and water. Ironically, many carbon-motivated environmental policies actually harm the… — Robert F. Kennedy Jr (@RobertKennedyJr) August 29, 2024

Reicher said Kennedy is grasping at “dangerous” straws and expects his embrace of Trump will end in failure.

“Any possibility that Kennedy will green up Trump is about as likely as the former president taking down the border wall,” he said. “I just don’t see how it all adds up for Robert F. Kennedy Jr. — if he has a shred of environmental protection left in his brain. And it may well be that he doesn’t.”

“You just think, ‘Why has he been welcomed by Trump?’” Reicher added. “It’s not because of Bobby’s early, strong environmental credentials but his now much later craziness on things environmental.”

Reicher and others date Kennedy’s departure from the environmental movement to the early 2000s, when he began to embrace conspiracies about vaccines and autism — a torch he continues to carry — and became a prominent figure in the fight against a proposed offshore wind farm near Cape Cod, Massachusetts.

But Brett Hartl, government affairs director of the Center for Biological Diversity’s political arm, points to a fiasco Kennedy set in motion at Riverkeeper in 2000. That year, Kennedy, then Riverkeeper’s lead attorney, hired William Wegner , a convicted smuggler of wild bird eggs, to help the organization monitor New York City’s compliance with environmental rules. Eight of Riverkeeper’s board members resigned in protest.

Ever since that incident, Hartl, who grew up along the Hudson River, has viewed Kennedy as a foe and told HuffPost he’s “been baffled by the comments of other environmental advocates that can’t believe what has happened to him.”

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“RFK has been twisted for decades, nothing is new, people just tolerated his untethered and bizarre beliefs because his last name was Kennedy,” Hartl said in an email. “In my view, RFK Jr is an environmental criminal and an environmental villain.”

In a letter to the National Oceanic and Atmospheric Administration last month, Hartl called on federal officials to investigate an incident in the 1990s when Kennedy, according to his daughter, cut the head of a dead, beached whale off using a chainsaw, strapped the head to the hood of his minivan and drove it home to Mount Kisco, New York. “Every time we accelerated on the highway, whale juice would pour into the windows of the car, and it was the rankest thing on the planet,” his daughter, Kick Kennedy, told Town & Country magazine in 2012.

The disturbing and graphic whale story resurfaced just a few weeks after Kennedy made national headlines for admitting to dumping the carcass of a bear cub in New York’s Central Park in 2014 and just one day before he told Carlson about how whales and other wildlife were the foundation of his environmental work.

“I got into the environment because I wanted this connection to the fishes and the birds and the wildlife and the whales,” he told the right-wing host and Trump ally.

“Most of us got into this because of the whales.”

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Northern vietnam faces widespread landslide threats as typhoon yagi deaths rise.

Yagi, the strongest storm to hit the East Sea in three decades, made landfall on Vietnam's northern coast Saturday afternoon. The National Center for Hydro-Meteorological Forecasting reported that typhoon has unleashed torrential rains across the region, with some areas recording over 300 mm of rainfall between 8 a.m. Saturday and 8 p.m. Sunday. Hoa Binh and Son La saw rainfall as high as 430-440 mm.

Typhoon Yagi made landfall in Quang Ninh on Saturday afternoon with winds reaching 166 kph.

As of Monday, the storm has claimed at least 65 lives and left 39 others missing across northern Vietnam, mostly due to flash floods and landslides after it passed, according to the Department of Dyke Management and Natural Disaster Prevention under the agriculture ministry.

The purple color indicates areas at high risk of heavy landslides triggered by typhoon Yagi. Graphics by the National Center for Hydro-Meteorological Forecasting

Forecasts indicate that the northwest region, including Sa Pa tourist city , will experience the heaviest rainfall, ranging from 100-200 mm and potentially exceeding 400 mm by Monday. The northeast, including Ha Long Bay, is expected to receive 20-50 mm, with some areas surpassing 100 mm. The mountainous northeast will see 60-120 mm of rain, with some places experiencing over 250 mm.

Saturated soil from heavy rains has heightened the risk of landslides. The meteorological agency has issued warnings for landslides in 17 out of 25 northern provinces.

Early Sunday, a landslide in Tan Minh Commune, Da Bac District of Hoa Binh, resulted in the deaths of four family members when debris collapsed onto their home. In Sa Pa, a landslide engulfed a residential area, burying 26 people and killing six of them.

Typhoon Yagi, which intensified into a super typhoon last Thursday with winds reaching 201 kph, has caused significant devastation to northern Vietnam. Over 8,010 houses were damaged, and 25 fishing boats sunk in Quang Ninh. More than 1,100 fish farming cages were either submerged or washed away.

An electricity pole was broken and falls down on a street of Cam Pha City in Quang Ninh Province, Sept. 8, 2024. Photo by VnExpress/Giang Huy

The storm has also caused widespread disruption to power and telecommunications. Provinces including Quang Ninh, Hai Phong, Thai Binh, Hai Duong, and Hanoi have experienced outages due to damage to 133 transmission lines. As of Sunday evening, many areas in Quang Ninh and Hai Phong remained without electricity.

In agriculture, nearly 110,000 hectares of rice fields have been flooded. The hardest-hit areas include Hai Phong (7,000 hectares), Thai Binh (29,000 hectares), Hung Yen (12,110 hectares), and Hai Duong (18,500 hectares). Additionally, 17,920 hectares of vegetables and 6,900 hectares of fruit trees have been damaged.

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  17. 15 Biggest Environmental Problems of 2024

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  19. Environment Essay for Students in English

    The environment is everything that surrounds us - the air we breathe, the water we drink, the soil beneath our feet, and the diverse flora and fauna that inhabit our planet. It's not just a backdrop to our lives; it's the very essence of our existence. In this essay, we'll explore the importance of our environment, the challenges it faces ...

  20. Human, economic, environmental toll of climate change on the rise: WMO

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  21. Environmental Issue Essay

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  22. Environment Essay For Students In English

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  23. PFAS in Pesticides Could Pose a Greater Multigenerational Threat Than

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  27. RFK Jr., From Environmental Lawyer To All In On MAGA

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