reflection essay about climate change

Climate Change Essay for Students and Children

500+ words climate change essay.

Climate change refers to the change in the environmental conditions of the earth. This happens due to many internal and external factors. The climatic change has become a global concern over the last few decades. Besides, these climatic changes affect life on the earth in various ways. These climatic changes are having various impacts on the ecosystem and ecology. Due to these changes, a number of species of plants and animals have gone extinct.

When Did it Start?

The climate started changing a long time ago due to human activities but we came to know about it in the last century. During the last century, we started noticing the climatic change and its effect on human life. We started researching on climate change and came to know that the earth temperature is rising due to a phenomenon called the greenhouse effect. The warming up of earth surface causes many ozone depletion, affect our agriculture , water supply, transportation, and several other problems.

Reason Of Climate Change

Although there are hundreds of reason for the climatic change we are only going to discuss the natural and manmade (human) reasons.

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

Natural Reasons

These include volcanic eruption , solar radiation, tectonic plate movement, orbital variations. Due to these activities, the geographical condition of an area become quite harmful for life to survive. Also, these activities raise the temperature of the earth to a great extent causing an imbalance in nature.

Human Reasons

Man due to his need and greed has done many activities that not only harm the environment but himself too. Many plant and animal species go extinct due to human activity. Human activities that harm the climate include deforestation, using fossil fuel , industrial waste , a different type of pollution and many more. All these things damage the climate and ecosystem very badly. And many species of animals and birds got extinct or on a verge of extinction due to hunting.

Effects Of Climatic Change

These climatic changes have a negative impact on the environment. The ocean level is rising, glaciers are melting, CO2 in the air is increasing, forest and wildlife are declining, and water life is also getting disturbed due to climatic changes. Apart from that, it is calculated that if this change keeps on going then many species of plants and animals will get extinct. And there will be a heavy loss to the environment.

What will be Future?

If we do not do anything and things continue to go on like right now then a day in future will come when humans will become extinct from the surface of the earth. But instead of neglecting these problems we start acting on then we can save the earth and our future.

Although humans mistake has caused great damage to the climate and ecosystem. But, it is not late to start again and try to undo what we have done until now to damage the environment. And if every human start contributing to the environment then we can be sure of our existence in the future.

{ “@context”: “https://schema.org”, “@type”: “FAQPage”, “mainEntity”: [ { “@type”: “Question”, “name”: “What is climate change and how it affects humans?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Climate change is a phenomenon that happens because of human and natural reasons. And it is one of the most serious problems that not only affect the environment but also human beings. It affects human in several ways but in simple language, we can say that it causes many diseases and disasters that destroy life on earth.” } }, { “@type”: “Question”, “name”: “Can we stop these climatic changes?”, “acceptedAnswer”: { “@type”: “Answer”, “text”: “Yes, we can stop these climatic changes but for that, every one of us has to come forward and has to adapt ways that can reduce and control our bad habits that affect the environment. We have to the initiative and make everyone aware of the climatic changes.” } } ] }

Customize your course in 30 seconds

Which class are you in.

• Travelling Essay
• Picnic Essay
• Our Country Essay
• My Parents Essay
• Essay on Favourite Personality
• Essay on Memorable Day of My Life
• Essay on Knowledge is Power
• Essay on Gurpurab
• Essay on My Favourite Season
• Essay on Types of Sports

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Download the App

We want to hear from you! Let us know what you think about our website.

interstitialRedirectModalTitle

interstitialRedirectModalMessage

• Show search

Perspectives

Five Reflections on the IPCC Climate Change Report

October 24, 2018

By Justin Adams, Executive Director, Tropical Forest Alliance

In response to last week’s release of the UN’s IPCC report on the climate, which warned that “unprecedented” changes were needed to slow or stop global warming beyond 1.5C pre-industrial period, it’s easy judging by the headlines and subsequent global response to perhaps give up or sink into despair. “Terrifying.” “Time to Wake Up.” “Final Call”. “Ten years to Act ” were just some of the headlines. Could this report, as shocking as it is, actually be the much-needed catalyst for action we’ve all been waiting for? Letting the dust settle a little on this powerful series of findings endorsed by all the world’s governments, these are my top five reflections. 

Could this report actually be the much-needed catalyst for action we’ve all been waiting for?

1. We now have a better understanding that every fraction of a degree counts

The report shows that every fraction of a degree of warming matters. Continued rising temperatures will exact a huge toll on people, natural ecosystems and the economy. The IPCC concludes the world will likely reach 1.5°C above pre-industrial levels as soon as 2030. It notes that 20-40 percent of the global population lives in regions that have already experienced warming of more than 1.5°C in at least one season.

The primary way to limit warming to less than 1.5°C is to reduce greenhouse gas emissions—and eventually reach net-zero emissions. According to the report, to limit warming to 1.5°C with “no or limited overshoot,” net global CO 2 emissions need to fall by about 45 percent from 2010 levels by 2030 and reach net zero by around 2050.  

The report puts it this way: “By 2100, global sea-level rise would be 10 cm lower with global warming of 1.5°C compared with 2°C. The likelihood of an Arctic Ocean free of sea ice in summer would be once per century with global warming of 1.5°C, compared with at least once per decade with 2°C. Coral reefs would decline by 70-90 percent with global warming of 1.5°C, whereas virtually all would be lost with 2°C.”

However, here is the kicker. Even with the pledged emission cuts under the Paris Agreement, the world is nowhere near achieving the volume of necessary cuts. To do so, we would need “rapid and far-reaching transitions” across the entire global economy, including changes in the way we source and use energy, how we use land and grow food, and what types and quantities of food and materials we consume. 

The Science of Sustainability

We can limit climate change and allow for further human development—but only if we act soon. Explore our latest research

2.   We have a better understanding of deep mitigation pathways—and nature is the ‘forgotten solution’ we need to reach 1.5°C

A series of reports that qualify and quantify the power of nature as a climate solution have also been released. The CLARA Alliance just released  its report , suggesting that shifting from industrial crop and livestock production toward more ecological methods would make a major contribution towards reducing emissions, while also feeding people fairly and empowering the world’s smallholder farmers, particularly women. It points out that the 1.5 degree goal can be met without relying on planetary-scale land-use change like BECCS (Bioenergy with Carbon Capture Storage) for carbon removal.

Further huge emissions savings can be made if sections of society that enjoy high levels of meat consumption shifted to consuming fewer animal products, and to a more plant-based flexitarian diet.  A “less and better” approach to food production would go a long way toward cutting emissions, the report says, while still feeding the world fairly. Taken together, ecosystem-based approaches and transformative changes in land and agriculture sectors could deliver 11 Gt CO2-eq per year in avoided emissions, and a further 10 Gt CO2-eq per year in carbon sequestered into the biosphere by 2050.

Furthermore, a study by  The Nature Conservancy (TNC) and a group of other organizations  published last year found that natural climate solutions like these could deliver a third of the required mitigation by 2030 to restrict global warming to 2 degrees. The key is that these natural solutions are affordable, actionable and scalable  today . They do not involve technologies still under development with unknown costs. A forthcoming assessment on land use in the USA is also expected to show enormous potential. 

3. It’s one system

Protecting and increasing tropical forest cover is vital, since these regions cool the air and are key to generating regional rainfall that supports food production. Yet commodities like beef, soy, timber and palm oil are currently responsible for over half of tropical forest loss. What we eat and use matters. Soil leads the way as a carbon sink and is among the cheapest methods with the greatest potential. The IPCC found that by 2050, soil carbon sequestration could remove between two and five gigatons of CO2 a year , at a cost ranging from less than $0 to $100 per ton. It also helps us grow our food.

4. Action and money are needed now

We need to talk about how to shift capital. As mentioned above, one reading of scenarios presented in the report to stay below 1.5 C of warming shows that we only have until around 2030 to achieve net-zero emissions globally. That's essentially tomorrow when we're talking about the pace of change required in a complex, dynamic systems like energy, food and financial markets.

Most organizations  working along and together  now recognize that to stop or slow global warming, we will have to increase current levels of ambition. Natural climate solutions, which have long been overlooked by the international community, will have to play a much bigger role. In effect that means governments and companies must set specific targets for natural climate solutions in their commitments under Paris.

It also means a ramp-up in finance: right now, the land sector only receives around 3% of public climate funding. That will have to be targeted to leverage the scale of the private sector if the transition on land is to be successful.

5. This is no longer just an ‘environmental story’

Time’s up. It's time to take action now or pay for it later – indeed, not much later if current climate trends are any indication. To get to 2 degrees Celsius or under, all these solutions require unprecedented efforts to cut fossil-fuel use in half in less than 15 years and eliminate their use almost entirely within 30 years. Long siloed, the conversation at least this month took on a new urgency. Climate change is no longer just a political story. The science is clear, the impacts too obvious, the potentially irreversible repercussions as well as deployable solutions imminent. Now it's a business story, a legal story and, increasingly, a story about the potential contribution of both technology and nature working alongside each other.

The good news is that the future hasn’t already been set in stone. Climate change is an inescapable present and future reality, but the point of the IPCC report is that there is still a chance to seize the best-case scenario rather than surrender to the worst. This December, Poland hosts the next UN governmental meeting, and the UN Secretary General has asked global leaders to meet with him at a special summit in New York in September next year, citing alarm by the paralysis of world leaders on what he called the "defining issue" of our time. Grave threat, or unmissable opportunity for movement and funding? There is still time to decide, although the window is narrowing rapidly. 

Originally Posted on  Nature4Climate October 17, 2018 View Original

Related Reading

There is a Forgotten Solution to Climate Change That We Must Invest In: Nature

We have forgotten the role nature can play in mitigating climate change.

Climate Action from the Ground Up

There’s a groundswell of leadership on climate action happening at the local level.

Can a unified path for development and conservation lead to a better future?

Home — Essay Samples — Environment — Environment Problems — Climate Change

Essays on Climate Change

Climate change: essay topics for college students.

Welcome to our resource page designed for college students seeking inspiration for their climate change essays. The choice of topic is a crucial first step in the writing process, reflecting your personal interests and creativity. This page aims to guide you through selecting a compelling essay topic that not only captivates your interest but also challenges you to think critically and analytically.

Depending on your assignment requirements or personal preference, essays can be categorized into several types. Below, you will find a variety of climate change essay topics categorized by essay type. Each topic is accompanied by an introductory paragraph example, highlighting a clear thesis statement, and a conclusion paragraph example that summarizes the essay's main points and reiterates the thesis.

Argumentative Essays

• Topic: The Effectiveness of International Agreements in Combating Climate Change
• Thesis Statement: International agreements, though crucial, are not sufficiently effective in combating climate change without enforceable commitments.

Conclusion Example: In summarizing, international agreements provide a framework for climate action but lack the enforcement necessary for real change. To combat climate change effectively, these agreements must be accompanied by binding commitments that ensure countries adhere to their promises, underscoring the need for a more robust global enforcement mechanism.

Compare and Contrast Essays

• Topic: Renewable Energy Sources vs. Fossil Fuels: A Comparative Analysis
• Thesis Statement: Renewable energy sources, despite higher initial costs, are more environmentally sustainable and cost-effective in the long run compared to fossil fuels.

Conclusion Example: Through this comparative analysis, it is clear that renewable energy sources offer a more sustainable and cost-effective solution to powering our world than fossil fuels. Embracing renewables not only mitigates the impact of climate change but also secures a sustainable energy future.

Descriptive Essays

• Topic: The Impact of Climate Change on Coral Reefs
• Thesis Statement: Climate change poses a severe threat to coral reefs, leading to bleaching events, habitat loss, and a decline in marine biodiversity.

Conclusion Example: The devastation of coral reefs is a stark reminder of the broader impacts of climate change on marine ecosystems. Protecting these vital habitats requires immediate action to mitigate the effects of climate change and preserve marine biodiversity for future generations.

Persuasive Essays

• Topic: The Role of Individual Actions in Mitigating Climate Change
• Thesis Statement: Individual actions, when collectively embraced, can drive significant environmental change and are essential in the fight against climate change.

Conclusion Example: In conclusion, the cumulative effect of individual actions can make a substantial difference in addressing climate change. By adopting more sustainable lifestyles, individuals can contribute to a larger movement towards environmental stewardship and climate action.

Narrative Essays

• Topic: A Personal Journey Towards Sustainable Living
• Thesis Statement: Through personal commitment to sustainable living, individuals can contribute meaningfully to mitigating climate change while discovering the intrinsic rewards of a simpler, more purposeful lifestyle.

Conclusion Example: This journey towards sustainable living has not only contributed to climate action but has also offered a deeper appreciation for the importance of individual choices. As more people embark on similar journeys, the collective impact on our planet can be transformative.

We encourage you to select a topic that resonates with your personal interests and academic goals. Dive deep into your chosen subject, employ critical thinking, and let your creativity flow as you explore different perspectives and solutions to climate change. Remember, the best essays are not only informative but also engaging and thought-provoking.

Writing on these topics will not only enhance your understanding of climate change and its implications but also develop your skills in research, critical thinking, persuasive writing, and narrative storytelling. Each essay type offers a unique opportunity to explore different facets of the climate crisis, encouraging you to engage with the material in a meaningful way.

Hooks for Climate Change Essay

Climate change is not just an environmental issue; it is a pressing global crisis that affects every aspect of our lives. From melting polar ice caps to rising sea levels, the signs of climate change are everywhere, and they are impossible to ignore.

• Imagine a world where natural disasters are a daily occurrence. This is not a dystopian future; it is the reality we face if we do not address climate change now.
• Have you ever wondered why the summers seem hotter and the winters milder? The answer lies in the alarming acceleration of climate change.
• Picture your favorite coastal city submerged under water. This scenario is closer than you think due to the rapid rise in sea levels.
• What if I told you that climate change could lead to the extinction of over one million species by 2050? The clock is ticking for our planet's biodiversity.
• Every time you turn on a light or drive your car, you contribute to a global problem. Understanding the personal impact of climate change is the first step towards meaningful action.

Climate Change Outline Essay Examples

Example 1: causes and effects of climate change, introduction.

Introduce the topic of climate change, its significance, and provide a thesis statement outlining the main points.

Greenhouse Gas Emissions

• Deforestation

Industrial Activities

Urbanization

Rising Sea Levels

Extreme Weather Events

Loss of Biodiversity

Impact on Human Health

Renewable Energy Sources

Afforestation and Reforestation

Policy and Legislation

Public Awareness and Education

Summarize the main points, restate the significance of addressing climate change, and provide a call to action for individuals and policymakers.

Example 2: The Impact of Climate Change on Global Ecosystems

Introduce the importance of ecosystems and how they are threatened by climate change. Provide a thesis statement outlining the main areas of focus.

Coral Bleaching

Ocean Acidification

Disruption of Marine Food Chains

Forest Degradation

Changes in Wildlife Migration Patterns

Alteration of Plant Growth Cycles

Glacial Melt and Reduced Snowpack

Changes in Water Quality

Disruption of Aquatic Species Habitats

Summarize the impacts of climate change on different ecosystems, emphasize the interconnectedness of these systems, and highlight the need for comprehensive conservation efforts.

Example 3: The Role of Policy in Combating Climate Change

Introduce the role of policy in addressing climate change, and provide a thesis statement highlighting the importance of governmental and international efforts.

Renewable Energy Incentives

Carbon Pricing

Regulations on Emissions

Paris Agreement

Kyoto Protocol

UN Climate Change Conferences (COP)

Economic and Political Barriers

Technological Innovations

Public and Private Sector Collaboration

Summarize the role of policy in combating climate change, discuss the need for robust and enforceable policies, and call for increased global cooperation and commitment.

The Causes and Effects of Climate Change: a Comprehensive Analysis

Climate change and global cooperation, made-to-order essay as fast as you need it.

Each essay is customized to cater to your unique preferences

+ experts online

150-word on Global Warming

The global environmental issues: climate change, pollution and natural resources, climate change in the 21st century: a global health crisis, climate change: issues and strategy to mitigate it, let us write you an essay from scratch.

• 450+ experts on 30 subjects ready to help
• Custom essay delivered in as few as 3 hours

How Global Warming Changed Earth's Environment

Analysis of the possible causes of climate change, climate change as a serious threat, global warming and what people can do to save earth, get a personalized essay in under 3 hours.

Expert-written essays crafted with your exact needs in mind

Mother Nature and Climate Change: We Must Take Action

Climate change: a rhetorical perspective, the global problem of co2 emission and its possible solution, impact of the youth climate movement on climate change, the impact of global warming on climate change, climate change and business and government initiatives, impact of climate change on british columbia's biodiversity, the top three individual contributors to climate change, the issue of climate change in african countries, climate change: greenhouse effect, the crucial importance of addressing climate change, climate change and the australian fires, climate changes: emission of greenhouse gases, human & nature contribution, worsening california's wildfires: climate change, climate change as the one of the biggest threats to humanity now, analysis on climate change and the deterioration of the environment, greenhouse gases and climate change, investigation of the consequences of climate change, india's efforts towards mitigating climate change, the importance of climate change education.

Climate change refers to long-term changes in the Earth's climate, including rising temperatures, shifting weather patterns, and more severe natural disasters.

The historical context of climate change spans centuries. The Industrial Revolution in the 18th century marked increased fossil fuel use, releasing significant greenhouse gases. By the late 19th century, scientists like Svante Arrhenius linked carbon dioxide to Earth's temperature. Climate change gained attention in the mid-20th century, with the 1958 Keeling Curve showing rising CO2 levels. Key events include the 1988 establishment of the IPCC, the 1992 UNFCCC, the 1997 Kyoto Protocol, and the 2015 Paris Agreement.

• Greenhouse gas emissions: The burning of fossil fuels, such as coal, oil, and natural gas, releases carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) into the atmosphere, trapping heat and contributing to global warming.
• Industrial activities: Industrial processes, including manufacturing, construction, and chemical production, release CO2 and other greenhouse gases through energy consumption and the use of certain chemicals.
• Agricultural practices: Livestock farming produces methane through enteric fermentation and manure management, while the use of synthetic fertilizers releases nitrous oxide.
• Land use changes: Converting land for agriculture, urban development, or other purposes alters natural ecosystems and contributes to the release of CO2 and other greenhouse gases.
• Waste management: Improper handling and decomposition of organic waste in landfills produce methane, a potent greenhouse gas.
• Rising temperatures: Global warming leads to increased average temperatures worldwide, resulting in heatwaves, melting glaciers and polar ice, and rising sea levels.
• Extreme weather events: Climate change intensifies extreme weather events such as hurricanes, droughts, floods, and wildfires, leading to devastating impacts on ecosystems, communities, and infrastructure.
• Disruption of ecosystems: Changes in temperature and precipitation patterns disrupt ecosystems, affecting biodiversity, migration patterns, and the survival of plant and animal species.
• Health impacts: Climate change contributes to the spread of diseases, heat-related illnesses, and respiratory problems due to increased air pollution and the expansion of disease vectors.
• Water scarcity: Changing climate patterns can alter rainfall patterns, causing water scarcity in certain regions, affecting agriculture, drinking water supplies, and ecosystems that depend on water sources.

Transitioning to renewable energy sources like solar, wind, and hydropower, along with improving energy efficiency in industries and buildings, can significantly reduce greenhouse gas emissions. Promoting electric vehicles, public transportation, and biking infrastructure further cuts emissions. Forest conservation and reforestation help absorb carbon dioxide, while sustainable agriculture practices reduce emissions and improve soil health. Embracing a circular economy reduces waste, and strong climate policies alongside public awareness drive collective action against climate change.

• The levels of carbon dioxide (CO2) in the Earth's atmosphere are currently higher than any recorded in the past 800,000 years. According to data from ice core samples, pre-industrial CO2 levels averaged around 280 parts per million (ppm), while current levels have exceeded 410 ppm.
• The Earth's average temperature has increased by about 1 degree Celsius since the late 19th century.
• The Arctic region is warming at a faster pace than any other part of the planet.
• Human activities, such as burning fossil fuels and deforestation, are major contributors to climate change.
• Climate change is also affecting wildlife, with many species facing extinction due to habitat loss.

Climate change is a critical issue that affects all aspects of our lives, from the environment to the economy. It poses a threat to biodiversity, food security, and human health. Addressing climate change requires global cooperation and immediate action to reduce greenhouse gas emissions and mitigate its impacts. By raising awareness and taking steps to combat climate change, we can protect the planet for future generations.

1. Intergovernmental Panel on Climate Change. (2018). Global warming of 1.5°C. Retrieved from https://www.ipcc.ch/sr15/ 2. National Aeronautics and Space Administration. (n.d.). Climate change: How do we know? Retrieved from https://climate.nasa.gov/evidence/ 3. United Nations Framework Convention on Climate Change. (2015). Paris Agreement. Retrieved from https://unfccc.int/process-and-meetings/the-paris-agreement/the-paris-agreement 4. World Health Organization. (2018). Climate change and health. Retrieved from https://www.who.int/news-room/fact-sheets/detail/climate-change-and-health 5. Environmental Protection Agency. (2021). Climate change indicators: Atmospheric concentrations of greenhouse gases. Retrieved from https://www.epa.gov/climate-indicators/greenhouse-gases 6. United Nations Environment Programme. (2020). Emissions gap report 2020. Retrieved from https://www.unep.org/emissions-gap-report-2020 7. Stern, N. (2007). The economics of climate change: The Stern Review. Cambridge University Press. 8. Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. (2019). Summary for policymakers of the global assessment report on biodiversity and ecosystem services. Retrieved from https://ipbes.net/sites/default/files/2020-02/ipbes_global_assessment_report_summary_for_policymakers_en.pdf 9. World Meteorological Organization. (2021). State of the global climate 2020. Retrieved from https://library.wmo.int/doc_num.php?explnum_id=10739 10. Cook, J., Oreskes, N., Doran, P. T., Anderegg, W. R., Verheggen, B., Maibach, E. W., ... & Nuccitelli, D. (2016). Consensus on consensus: A synthesis of consensus estimates on human-caused global warming. Environmental Research Letters, 11(4), 048002. doi:10.1088/1748-9326/11/4/048002

Relevant topics

• Global Warming
• Air Pollution
• Natural Disasters
• Ocean Pollution
• Water Pollution
• Fast Fashion

By clicking “Check Writers’ Offers”, you agree to our terms of service and privacy policy . We’ll occasionally send you promo and account related email

No need to pay just yet!

Bibliography

We use cookies to personalyze your web-site experience. By continuing we’ll assume you board with our cookie policy .

• Instructions Followed To The Letter
• Deadlines Met At Every Stage
• Unique And Plagiarism Free

Explore Greyhound Nation

• Loyola Today

Our Future Is Now - A Climate Change Essay by Francesca Minicozzi, '21

Francesca Minicozzi (class of 2021) is a Writing/Biology major who plans to study medicine after graduation. She wrote this essay on climate change for WR 355/Travel Writing, which she took while studying abroad in Newcastle in spring 2020. Although the coronavirus pandemic curtailed Francesca’s time abroad, her months in Newcastle prompted her to learn more about climate change. Terre Ryan Associate Professor, Writing Department

Our Future Is Now

By Francesca Minicozzi, '21 Writing and Biology Major

 “If you don’t mind me asking, how is the United States preparing for climate change?” my flat mate, Zac, asked me back in March, when we were both still in Newcastle. He and I were accustomed to asking each other about the differences between our home countries; he came from Cambridge, while I originated in Long Island, New York. This was one of our numerous conversations about issues that impact our generation, which we usually discussed while cooking dinner in our communal kitchen. In the moment of our conversation, I did not have as strong an answer for him as I would have liked. Instead, I informed him of the few changes I had witnessed within my home state of New York.

Zac’s response was consistent with his normal, diplomatic self. “I have been following the BBC news in terms of the climate crisis for the past few years. The U.K. has been working hard to transition to renewable energy sources. Similar to the United States, here in the United Kingdom we have converted over to solar panels too. My home does not have solar panels, but a lot of our neighbors have switched to solar energy in the past few years.”

“Our two countries are similar, yet so different,” I thought. Our conversation continued as we prepared our meals, with topics ranging from climate change to the upcoming presidential election to Britain’s exit from the European Union. However, I could not shake the fact that I knew so little about a topic so crucial to my generation.

After I abruptly returned home from the United Kingdom because of the global pandemic, my conversation with my flat mate lingered in my mind. Before the coronavirus surpassed climate change headlines, I had seen the number of internet postings regarding protests to protect the planet dramatically increase. Yet the idea of our planet becoming barren and unlivable in a not-so-distant future had previously upset me to the point where a part of me refused to deal with it. After I returned from studying abroad, I decided to educate myself on the climate crisis.

My quest for climate change knowledge required a thorough understanding of the difference between “climate change” and “global warming.” Climate change is defined as “a pattern of change affecting global or regional climate,” based on “average temperature and rainfall measurements” as well as the frequency of extreme weather events. 1   These varied temperature and weather events link back to both natural incidents and human activity. 2   Likewise, the term global warming was coined “to describe climate change caused by humans.” 3   Not only that, but global warming is most recently attributed to an increase in “global average temperature,” mainly due to greenhouse gas emissions produced by humans. 4

I next questioned why the term “climate change” seemed to take over the term “global warming” in the United States. According to Frank Luntz, a leading Republican consultant, the term “global warming” functions as a rather intimidating phrase. During George W. Bush’s first presidential term, Luntz argued in favor of using the less daunting phrase “climate change” in an attempt to overcome the environmental battle amongst Democrats and Republicans. 5   Since President Bush’s term, Luntz remains just one political consultant out of many politicians who has recognized the need to address climate change. In an article from 2019, Luntz proclaimed that political parties aside, the climate crisis affects everyone. Luntz argued that politicians should steer clear of trying to communicate “the complicated science of climate change,” and instead engage voters by explaining how climate change personally impacts citizens with natural disasters such as hurricanes, tornadoes, and forest fires. 6   He even suggested that a shift away from words like “sustainability” would gear Americans towards what they really want: a “cleaner, safer, healthier” environment. 7

The idea of a cleaner and heathier environment remains easier said than done. The Paris Climate Agreement, introduced in 2015, began the United Nations’ “effort to combat global climate change.” 8   This agreement marked a global initiative to “limit global temperature increase in this century to 2 degrees Celsius above preindustrial levels,” while simultaneously “pursuing means to limit the increase to 1.5 degrees.” 9    Every country on earth has joined together in this agreement for the common purpose of saving our planet. 10   So, what could go wrong here? As much as this sounds like a compelling step in the right direction for climate change, President Donald Trump thought otherwise. In June 2017, President Trump announced the withdrawal of the United States from the Paris Agreement with his proclamation of climate change as a “’hoax’ perpetrated by China.” 11   President Trump continued to question the scientific facts behind climate change, remaining an advocate for the expansion of domestic fossil fuel production. 12   He reversed environmental policies implemented by former President Barack Obama to reduce fossil fuel use. 13

Trump’s actions against the Paris Agreement, however, fail to represent the beliefs of Americans as a whole. The majority of American citizens feel passionate about the fight against climate change. To demonstrate their support, some have gone as far as creating initiatives including America’s Pledge and We Are Still In. 14   Although the United States officially exited the Paris Agreement on November 4, 2020, this withdrawal may not survive permanently. 15   According to experts, our new president “could rejoin in as short as a month’s time.” 16   This offers a glimmer of hope.

The Paris Agreement declares that the United States will reduce greenhouse gas emission levels by 26 to 28 percent by the year 2025. 17   As a leader in greenhouse gas emissions, the United States needs to accept the climate crisis for the serious challenge that it presents and work together with other nations. The concept of working coherently with all nations remains rather tricky; however, I remain optimistic. I think we can learn from how other countries have adapted to the increased heating of our planet. During my recent study abroad experience in the United Kingdom, I was struck by Great Britain’s commitment to combating climate change.

Since the United Kingdom joined the Paris Agreement, the country targets a “net-zero” greenhouse gas emission for 2050. 18   This substantial alteration would mark an 80% reduction of greenhouse gases from 1990, if “clear, stable, and well-designed policies are implemented without interruption.” 19   In order to stay on top of reducing emissions, the United Kingdom tracks electricity and car emissions, “size of onshore and offshore wind farms,” amount of homes and “walls insulated, and boilers upgraded,” as well as the development of government policies, including grants for electric vehicles. 20   A strong grip on this data allows the United Kingdom to target necessary modifications that keep the country on track for 2050. In my brief semester in Newcastle, I took note of these significant changes. The city of Newcastle is small enough that many students and faculty are able to walk or bike to campus and nearby essential shops. However, when driving is unavoidable, the majority of the vehicles used are electric, and many British citizens place a strong emphasis on carpooling to further reduce emissions. The United Kingdom’s determination to severely reduce greenhouse emissions is ambitious and particularly admirable, especially as the United States struggles to shy away from its dependence on fossil fuels.

So how can we, as Americans, stand together to combat global climate change? Here are five adjustments Americans can make to their homes and daily routines that can dramatically make a difference:

• Stay cautious of food waste. Studies demonstrate that “Americans throw away up to 40 percent of the food they buy.” 21   By being more mindful of the foods we purchase, opting for leftovers, composting wastes, and donating surplus food to those in need, we can make an individual difference that impacts the greater good. 22   
• Insulate your home. Insulation functions as a “cost-effective and accessible” method to combat climate change. 23   Homes with modern insulation reduce energy required to heat them, leading to a reduction of emissions and an overall savings; in comparison, older homes can “lose up to 35 percent of heat through their walls.” 24   
• Switch to LED Lighting. LED stands for “light-emitting diodes,” which use “90 percent less energy than incandescent bulbs and half as much as compact fluorescents.” 25   LED lights create light without producing heat, and therefore do not waste energy. Additionally, these lights have a longer duration than other bulbs, which means they offer a continuing savings. 26  
• Choose transportation wisely. Choose to walk or bike whenever the option presents itself. If walking or biking is not an option, use an electric or hybrid vehicle which emits less harmful gases. Furthermore, reduce the number of car trips taken, and carpool with others when applicable. 
• Finally, make your voice heard. The future of our planet remains in our hands, so we might as well use our voices to our advantage. Social media serves as a great platform for this. Moreover, using social media to share helpful hints to combat climate change within your community or to promote an upcoming protest proves beneficial in the long run. If we collectively put our voices to good use, together we can advocate for change.

As many of us are stuck at home due to the COVID-19 pandemic, these suggestions are slightly easier to put into place. With numerous “stay-at-home” orders in effect, Americans have the opportunity to make significant achievements for climate change. Personally, I have taken more precautions towards the amount of food consumed within my household during this pandemic. I have been more aware of food waste, opting for leftovers when too much food remains. Additionally, I have realized how powerful my voice is as a young college student. Now is the opportunity for Americans to share how they feel about climate change. During this unprecedented time, our voice is needed now more than ever in order to make a difference.

However, on a much larger scale, the coronavirus outbreak has shed light on reducing global energy consumption. Reductions in travel, both on the roads and in the air, have triggered a drop in emission rates. In fact, the International Energy Agency predicts a 6 percent decrease in energy consumption around the globe for this year alone. 27   This drop is “equivalent to losing the entire energy demand of India.” 28   Complete lockdowns have lowered the global demand for electricity and slashed CO2 emissions. However, in New York City, the shutdown has only decreased carbon dioxide emissions by 10 percent. 29   This proves that a shift in personal behavior is simply not enough to “fix the carbon emission problem.” 30   Climate policies aimed to reduce fossil fuel production and promote clean technology will be crucial steppingstones to ameliorating climate change effects. Our current reduction of greenhouse gas emissions serves as “the sort of reduction we need every year until net-zero emissions are reached around 2050.” 31   From the start of the coronavirus pandemic, politicians came together for the common good of protecting humanity; this demonstrates that when necessary, global leaders are capable of putting humankind above the economy. 32

After researching statistics comparing the coronavirus to climate change, I thought back to the moment the virus reached pandemic status. I knew that a greater reason underlay all of this global turmoil. Our globe is in dire need of help, and the coronavirus reminds the world of what it means to work together. This pandemic marks a turning point in global efforts to slow down climate change. The methods we enact towards not only stopping the spread of the virus, but slowing down climate change, will ultimately depict how humanity will arise once this pandemic is suppressed. The future of our home planet lies in how we treat it right now. 

• “Climate Change: What Do All the Terms Mean?,” BBC News (BBC, May 1, 2019), https://www.bbc.com/news/science-environment-48057733 )
• Ibid. 
• Kate Yoder, “Frank Luntz, the GOP's Message Master, Calls for Climate Action,” Grist (Grist, July 26, 2019), https://grist.org/article/the-gops-most-famous-messaging-strategist-calls-for-climate-action
• Melissa Denchak, “Paris Climate Agreement: Everything You Need to Know,” NRDC, April 29, 2020, https://www.nrdc.org/stories/paris-climate-agreement-everything-you-need-know)
• “Donald J. Trump's Foreign Policy Positions,” Council on Foreign Relations (Council on Foreign Relations), accessed May 7, 2020, https://www.cfr.org/election2020/candidate-tracker/donald-j.-trump?gclid=CjwKCAjw4871BRAjEiwAbxXi21cneTRft_doA5if60euC6QCL7sr-Jwwv76IkgWaUTuyJNx9EzZzRBoCdjsQAvD_BwE#climate and energy )
• David Doniger, “Paris Climate Agreement Explained: Does Congress Need to Sign Off?,” NRDC, December 15, 2016, https://www.nrdc.org/experts/david-doniger/paris-climate-agreement-explained-does-congress-need-sign )
• “How the UK Is Progressing,” Committee on Climate Change, March 9, 2020, https://www.theccc.org.uk/what-is-climate-change/reducing-carbon-emissions/how-the-uk-is-progressing/)
• Ibid.  
• “Top 10 Ways You Can Fight Climate Change,” Green America, accessed May 7, 2020, https://www.greenamerica.org/your-green-life/10-ways-you-can-fight-climate-change )
• Matt McGrath, “Climate Change and Coronavirus: Five Charts about the Biggest Carbon Crash,” BBC News (BBC, May 5, 2020), https://www.bbc.com/news/amp/science-environment-52485712 )

Ask NASA Climate

Ask nasa climate | december 10, 2011, 16:00 pst, conclusions and reflections, eleventh-hour agreement.

By Dr. Erika Podest, NASA Jet Propulsion Laboratory From the UN conference on climate change, Durban, South Africa

It is not until the eleventh hour — on Sunday at 6:00 am — that negotiations come to a close. An agreement has been made to develop a roadmap towards a new legally binding treaty by 2015, which would come into force in 2020. In addition, the decision has been made to adopt a second commitment period on the Kyoto Protocol — the only global pact that enforces carbon cuts — producing a five-to-seven-year extension of the current protocol, which was set to expire in 2012.

In addition, the “Green Climate Fund” was launched, which is intended to channel money to developing countries to help with their mitigation and adaptation efforts. However, it is unclear where the funding will come from. A second factor that is important to developing countries is technology transfer, and it was agreed that a technology mechanism would be fully operational by 2012 to “promote and enhance the research, development and deployment and diffusion of environmentally-sound technologies for mitigation and adaptation in developing countries.”

The REDD+ (Reducing Emissions from Deforestation and Forest Degradation) program, a collaborative effort between countries to reduce heat-trapping carbon emissions from deforestation and forest degradation, has probably been the biggest success story. Though agreements are in place, there are still many details to be worked out such as reference emissions levels, validation and funding, but at least there is a path forward for further discussions on fleshing out those details.

Looking back, this conference is probably the most important climate change gathering of our time with the whole world represented at COP17. At the very least, I would describe it as an explosion of thoughts — with the main concerns across the board being food security, water shortage, loss of biodiversity, population displacement and an increase of climate change refugees, ecological degradation, human well-being, planetary thresholds, climate, energy, governance across scales, and poverty alleviation.

My overall feeling is of awkward content that something happened (given the alternative) but also of great disappointment that more tangible results were not reached and that there is a lack of understanding behind the sense of urgency about climate change. No obligation for any nation to reduce greenhouse gas emissions until 2020 is not good enough, and that is of course, assuming that future UN deliberations flow smoothly and a global deal is reached with binding commitments. My concern is that by the time politics finally reaches a consensus to limit climate change, the climate change train will already have left the station.

Though the whole process is clearly far from perfect, it is unfortunately the only mechanism in place that rallies the international community towards addressing the effects of climate change. Ultimately, it is the scientific community that must deliver to society what we know about climate change and the risks humanity is facing in the short- and long-term. Even though I am disappointed that results from the negotiations were not more forthcoming, I leave encouraged knowing that I and the NASA community help provide the latest scientific evidence for a comprehensive update of our knowledge of Earth systems and the pressures they are under. It is this science that sets the stage for meetings like this one in South Africa and NASA, through its capability to study Earth from space, is uniquely positioned to help understand and monitor processes at national, regional, and global scales in unprecedented ways.

Even though my week was absorbed with COP17, I would not do this blog justice without mention of Durban, a relaxed and beautiful beachside city of three million people. It was obvious that South Africa and the city of Durban went to great efforts to host the conference. I was impressed by how well the event was organized and how well the city hosted and welcomed COP17 participants. Durban’s most precious asset is its people, cheerful, helpful and always sharing their warm smiles.

Finally, I am very grateful to have had this opportunity and I am particularly thankful to Jack Kaye and Duane Waliser for making it possible. I am also very grateful to Riley Duren and Tony Freeman for their advice and guidance, to Winnie Humberson for helping with logistics and preparation, to Eric Sokolowsky for being the whizz behind the Hyperwall, and to Amber Jenkins for being the magician behind this blog. A special thanks to the very friendly and professional staff from the U.S. State Department. Last but not least, to all of you who have followed my blog entries, thanks for reading!

Erika Podest is a scientist with the Water and Carbon Cycles Group at NASA’s Jet Propulsion Laboratory, and a Visiting Associate Researcher in the Joint Institute for Regional Earth System Science and Engineering (JIFRESSE) at UCLA. She focuses on using space satellites to monitor wetland ecosystems and seasonal freeze/thaw dynamics in the northern high latitudes of the globe, and improving our understanding of Earth’s water and carbon cycles and resources. Erika also leads a project that uses satellite data to study the palm swamp wetlands of the Amazon rainforest in order to better understand their contribution to the global carbon budget.

• Teaching Resources
• Upcoming Events
• On-demand Events

Reflecting on Climate Change and Ecological Grief

• Social Studies
• Democracy & Civic Engagement
• facebook sharing
• email sharing

About this Mini-Lesson

Climate change is one of the defining issues of our time, and it can be emotionally challenging to discuss. This mini-lesson is designed to help students reflect on their emotional reactions to climate change, consider their connection to the natural world, and learn about how collective action against climate change can make a difference. You can use this mini-lesson to prepare students for further discussions on issues related to the impact of climate change on individuals or societies.

What's Included

This mini-lesson is designed to be adaptable. You can use the activities in sequence or choose a selection best suited to your classroom. It includes:

• 4 activities 
• Student-facing slides 
• Recommended articles for exploring this topic

Additional Context & Background

The climate crisis is causing shifts in the availability of resources and precipitating migration, which in turn impact human rights, national politics, and may increase conflict within and between countries. On a more local level, the climate crisis raises issues of justice. While every person is touched in some way by extreme weather events, flooding, or ecological loss, more vulnerable populations—who have contributed less to climate change—often bear the greatest burden. Examining the impacts of climate change with students is important, but it is also important to first help them process any feelings of helplessness, dread, or grief associated with this topic.

An increasing number of people—especially young people—are struggling with climate-related anxiety or “ecological grief,” a term used to describe feelings of loss and sadness caused by changes in the environment, the disruption of cultural practices and knowledge related to the natural world, and the anticipation of further losses as climate change progresses. 1

In a recent study, researchers interviewed 10,000 young people between the ages of 16 and 25 living in 10 different countries around the world. More than half of the respondents reported feeling “afraid, sad, anxious, angry, powerless, helpless, and/or guilty,” and 68% of respondents from the United States agreed that the “future is frightening” because of climate change. 2

• 1 Hannah Comtesse, Verena Ertl, Sophie M. C. Hengst et. al, “ Ecological Grief as a Response to Environmental Change: A Mental Health Risk or Functional Response? ,” International Journal of Environmental Research and Public Health , January 2021; 18(2): 734.
• 2 Elizabeth Marks et. al, “ Young People's Voices on Climate Anxiety, Government Betrayal and Moral Injury: A Global Phenomenon ,” September 7, 2021.

Save this resource for easy access later.

How Do You Feel When You Think About Climate Change

Depending on your students’ background knowledge, you may want to begin by sharing some general information about climate change, such as this short passage:

Climate change—caused by heat getting trapped in the earth’s atmosphere by greenhouse gases such as carbon dioxide—is accelerating rapidly. While greenhouse gases have always been part of the atmosphere, climate scientists have established that their concentration has increased dramatically due to emissions from human activity. Journalist David Wallace-Wells writes in his book The Uninhabitable Earth: Life After Warming , “more than half of the carbon exhaled into the atmosphere by the burning of fossil fuels has been emitted in just the past three decades.” 1 Most climate proposals aim to prevent the earth from warming more than either 1.5 or 2 degrees Celsius above the average global temperature before industrialization. The average global temperature has already increased by around 1 degree Celsius, according to the IPCC. 2 The effect of this increase is already being felt in every region of the world through deadly heatwaves, desertification, decreased agricultural productivity, more extreme weather events, and rising sea levels. If humans do nothing to reduce emissions, we will be well over 2 degrees before the end of the century. Wallace-Wells writes that even a 2-degree rise in temperatures will have catastrophic consequences including increased water scarcity, coastal flooding, and extreme heat. 3  (To read more of Wallace-Wells’ reporting on climate change, see his  New York Magazine  article  The Uninhabitable Earth .) 

Ask students to reflect on the following prompt in their journals:

• How do you feel when you think about climate change?

Once students have finished journaling, ask them to share one word or phrase from their reflection with the class, either in a Word Cloud or by using the Wraparound strategy, where each student takes a turn sharing one word or phrase without an explanation.

Then, ask students:

• What patterns did you notice in the responses?
• Are there any words or phrases that stood out to you? Why?
• 1 David Wallace-Wells, The Uninhabitable Earth: Life After Warming (New York: Tim Duggan Books, 2019), 4.[/footnote] [footnote=4]: Intergovernmental Panel on Climate Change, “Global Warming of 1.5°C” (Switzerland: IPCC, 2018).
• 2 Intergovernmental Panel on Climate Change, “Global Warming of 1.5°C” (Switzerland: IPCC, 2018).
• 3 David Wallace-Wells, The Uninhabitable Earth: Life After Warming (New York: Tim Duggan Books, 2019).

Related Materials

• Teaching Strategy Wraparound

How Do You Connect with the Natural World?

Ask your students to think of a place in nature. It can be somewhere they have been or a place that they imagine. Then, ask them to close their eyes and reflect on the following questions:

• What do you see in this place? What kind of plants or animals are there?
• What do you smell? 
• What sounds do you hear?
• How does your body feel when you imagine being in this place? What emotions do you feel?

Give students a few minutes to reflect on these questions. They can write, draw, or simply reflect as they consider these questions.

Then, ask students to read Returning the Gift  by Robin Wall Kimmerer, either individually or as a full class. When they’ve finished reading, ask students:

• Do you think people will change the way they act if they feel more gratitude towards nature? Why or why not?
• What could it look like to express gratitude toward the place you imagined at the beginning of this activity?
• Reading Returning the Gift

How Can Collective Action Make a Difference?

This activity uses a framework that legal scholar Martha Minow uses to analyze the ways in which people can make change. She observed that one of the biggest barriers that individuals face in getting involved is that it is hard to know what actual steps to take:

Often times we see something that's unjust and we wonder, “Where do I go? What do I do?” 1

To help individuals identify concrete actions to take when they “choose to participate,” Minow developed a “levers of power” framework to map out the organizations, institutions, and technologies that can enable us to strengthen the impact of our voices and our actions. The levers include:

• Government (National, State, Local)
• Nonprofit Organizations/Charities
• Industry/Commercial Organizations
• Professional Media
• Social Media/Internet
• Schools and Education
• Influential Individuals (Authors, Lecturers, etc.)

Briefly explain Martha Minow’s framework to your students. Share with them that many people feel paralyzed when they think about climate change because it is such a big issue, and it can feel like our individual actions will not make enough of a difference. Ask your students:

• Do you ever think about taking action on climate change or another issue that impacts your community?
• What obstacles do you think can make it difficult for you or other young people to act on issues that you care about?

For the rest of this activity, students will focus on three of the levers of power (government; nonprofit organizations; and schools and education) and think about how people can use these levers to make a difference on climate change. 

Divide your students into small groups, and assign each group one of the levers. Pass out copies of the reading Climate Change and Levers of Power  to each group. Ask your students to read the excerpt associated with their assigned lever and discuss the questions following the excerpt. ( Note: Instead of reading the suggested article, you can ask students to conduct their own research on their assigned lever.)

When students have finished reading about and discussing their lever of power, ask them to share what they learned with the class.

• 1 Martha Minow, "Martha Minow: Levers of Power" (video), Facing History and Ourselves.
• Reading Climate Change and Levers of Power

Final Reflection

Ask students to choose one of the following prompts to reflect on in their journals or an exit ticket :

• What is one question you have about what you learned today?
• What is an action that you could take to make a difference on climate change or on another issue you care about?
• Is your emotional reaction to climate change the same as it was when you wrote your first journal reflection? Why do you think it has either stayed the same or changed?
• Teaching Strategy Exit Tickets

Materials and Downloads

Explore the materials, student activities: reflecting on climate change and ecological grief, returning the gift, climate change and levers of power, you might also be interested in…, 10 questions for the future: student action project, 10 questions for the present: parkland student activism, the union as it was, radical reconstruction and the birth of civil rights, expanding democracy, voting rights in the united states, my part of the story: exploring identity in the united states, the struggle over women’s rights, equality for all, protesting discrimination in bristol, how to read the news like a fact checker, the devastation of war, unlimited access to learning. more added every month..

Facing History & Ourselves is designed for educators who want to help students explore identity, think critically, grow emotionally, act ethically, and participate in civic life. It’s hard work, so we’ve developed some go-to professional learning opportunities to help you along the way.

Exploring ELA Text Selection with Julia Torres

Working for justice, equity and civic agency in our schools: a conversation with clint smith, centering student voices to build community and agency, inspiration, insights, & ways to get involved.

ENCYCLOPEDIC ENTRY

Climate change.

Climate change is a long-term shift in global or regional climate patterns. Often climate change refers specifically to the rise in global temperatures from the mid-20th century to present.

Earth Science, Climatology

Fracking tower

Fracking is a controversial form of drilling that uses high-pressure liquid to create cracks in underground shale to extract natural gas and petroleum. Carbon emissions from fossils fuels like these have been linked to global warming and climate change.

Photograph by Mark Thiessen / National Geographic

Learning materials

Upcoming event.

• Explorer Classroom: Photographing the Frozen Frontier with Esther Horvath | December 5

Climate is sometimes mistaken for weather. But climate is different from weather because it is measured over a long period of time, whereas weather can change from day to day, or from year to year. The climate of an area includes seasonal temperature and rainfall averages, and wind patterns. Different places have different climates. A desert, for example, is referred to as an arid climate because little water falls, as rain or snow, during the year. Other types of climate include tropical climates, which are hot and humid , and temperate climates, which have warm summers and cooler winters.

Climate change is the long-term alteration of temperature and typical weather patterns in a place. Climate change could refer to a particular location or the planet as a whole. Climate change may cause weather patterns to be less predictable. These unexpected weather patterns can make it difficult to maintain and grow crops in regions that rely on farming because expected temperature and rainfall levels can no longer be relied on. Climate change has also been connected with other damaging weather events such as more frequent and more intense hurricanes, floods, downpours, and winter storms.

In polar regions, the warming global temperatures associated with climate change have meant ice sheets and glaciers are melting at an accelerated rate from season to season. This contributes to sea levels rising in different regions of the planet. Together with expanding ocean waters due to rising temperatures, the resulting rise in sea level has begun to damage coastlines as a result of increased flooding and erosion.

The cause of current climate change is largely human activity, like burning fossil fuels , like natural gas, oil, and coal. Burning these materials releases what are called greenhouse gases into Earth’s atmosphere . There, these gases trap heat from the sun’s rays inside the atmosphere causing Earth’s average temperature to rise. This rise in the planet's temperature is called global warming. The warming of the planet impacts local and regional climates. Throughout Earth's history, climate has continually changed. When occuring naturally, this is a slow process that has taken place over hundreds and thousands of years. The human influenced climate change that is happening now is occuring at a much faster rate.

Media Credits

The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. The Rights Holder for media is the person or group credited.

Production Managers

Program specialists, last updated.

August 29, 2024

User Permissions

For information on user permissions, please read our Terms of Service. If you have questions about how to cite anything on our website in your project or classroom presentation, please contact your teacher. They will best know the preferred format. When you reach out to them, you will need the page title, URL, and the date you accessed the resource.

If a media asset is downloadable, a download button appears in the corner of the media viewer. If no button appears, you cannot download or save the media.

Text on this page is printable and can be used according to our Terms of Service .

Interactives

Any interactives on this page can only be played while you are visiting our website. You cannot download interactives.

Related Resources

Our websites may use cookies to personalize and enhance your experience. By continuing without changing your cookie settings, you agree to this collection. For more information, please see our University Websites Privacy Notice .

Institute of the Environment

Office of Sustainability

Intern reflection essay: climate change inequality.

Last summer I studied abroad in Iceland. A country at the forefront of renewable energy, Iceland has the potential to be a global leader in sustainability. Its energy is almost entirely powered from geothermal and hydroelectric and thus it is capable of an exceptionally small carbon footprint. However, there is no drive for this among the Icelandic people. Lights are kept on throughout the daytime and cars are driven for errands just down the street. This contrasts remarkably with an earlier visit I made to Peru. The Peruvians lack many of the resources we take for granted in the United States and yet the environmental devastation they live within—littered streets, polluted air, and dirty water—causes no alarm among its citizens.

There are three dimensions to sustainability: social, economic, and environmental. Strong sustainability requires a balance between these three pillars—without economic stability, the government cannot implement environmental regulations and cannot provide the environmental education necessary to create a “green” movement among its people. The environmental degradation in Peru is largely due to the government’s lack of action. It is the government’s responsibility to provide its people safe, clean resources. Unfortunately, environmental law in Peru is not well enforced. Additionally, Peru has not prioritized developing renewable energy resources (although recently there has been a push for increased solar energy – hopefully that marks a turning point for Peru). And so I experienced countries at very opposite sides of a sustainability spectrum:  one which economically cannot give the attention to environmental awareness that is warranted by the pressing reality of climate change and yet needs it sincerely, and another that is privileged with all that is required of an ecologically conscience nation and without the motivation to push for it among the people and culture.

After travelling to both of these beautiful countries I found myself very frustrated. Climate change looms on the horizon and the consequences of a warming planet are reason for great concern. The extent of climate change is not fully understood but what has been acknowledged is that the amplified rate at which it is occurring can be attributed to anthropogenic behavior. And this is not spread uniformly throughout the globe. Wealthy nations are contributing greatly to greenhouse gas emissions yet it will not be these same countries that most severely feel the threat of climate change. And what is even more upsetting is that the developing nations that will suffer the greatest because they do not have the economic strength and political stability to combat global warming are also mostly unaware of the dangers to come because there are many more pressing issues to confront such as inadequate food and poverty. So if the disparity between developed and developing nations was not already distressingly thick, climate change will surely broaden it further.

It is therefore the responsibility of countries such as the United States, who have the finances and the technologies, to lead our planet to a more sustainable future. The carbon emissions released by the United States does not solely affect our own citizens. It is a global crisis and so every car we drive, every coal power plant we construct, every long shower we take, and every technological device we keep plugged in is slowly yet catastrophically warming the entire planet. So, what should we do to reduce the climate change inequality that plagues our world? It starts at a local level. It requires cooperation and collaboration between leaders, businesses, and residents of a community and it demands environmental education.

Additionally, climate change inequality is not just found on the global scale. Even within the United States itself this disproportion is present. There are coastal cities at risk of flooding from sea level increase and yet they are not any more responsible for greenhouse gas emissions than the nation’s interior cities. Even on the micro scale this disparity is felt where industrial establishments directs emissions towards poverty stricken neighborhoods who cannot afford to fight this discrimation. UConn is committed to doing its part to help these efforts. In 2006 a co-generation plant was constructed to replace the previously used oil-fired utility. The co-gen burns natural gas, a cleaner fuel than oil and coal, and thus capable of reducing carbon dioxide emissions by up to 300,000 tons each year. It captures and utilizes steam to prevent efficiency loss. In 2008 former President Hogan signed the American College and University Presidents Climate Commitment (ACUPCC). This committed the university to carbon neutrality by 2050. The co-gen plant is just one of many technologies implemented by UConn to help assist in its mission towards carbon neutrality. UConn also has a fuel cell at the Depot campus, a bike and car sharing program, a reclaimed water facility, and much more.

But change cannot solely be acquired through better infrastructure and technology. We must demand a difference. This requires the voices of UConn’s students, staff, and faculty. It necessitates a new university culture that is eco-conscience and environmentally aware. UConn has many sustainability related courses and research opportunities. It has clubs and events that allow student participation. And it has many individuals who care greatly about playing their role in environmental stewardship. UConn is forging a path. It is setting precedence for universities throughout the country and throughout the globe. UConn is a leader in sustainability and is challenging the fight against climate change inequality.

– Emily

News from the Columbia Climate School

Six Tough Questions About Climate Change

Whenever the focus is on climate change, as it is right now at the  Paris climate conference , tough questions are asked concerning the costs of cutting carbon emissions, the feasibility of transitioning to renewable energy, and whether it’s already too late to do anything about climate change. We posed these questions to Laura Segafredo , manager for the Deep Decarbonization Pathways Project . The decarbonization project comprises energy research teams from 16 of the world’s biggest greenhouse gas emitting countries that are developing concrete strategies to reduce emissions in their countries. The Deep Decarbonization Pathways Project is an initiative of the Sustainable Development Solutions Network .

• Will the actions we take today be enough to forestall the direct impacts of climate change? Or is it too little too late?

There is still time and room for limiting climate change within the 2˚C limit that scientists consider relatively safe, and that countries endorsed in Copenhagen and Cancun. But clearly the window is closing quickly. I think that the most important message is that we need to start really, really soon, putting the world on a trajectory of stabilizing and reducing emissions. The temperature change has a direct relationship with the cumulative amount of emissions that are in the atmosphere, so the more we keep emitting at the pace that we are emitting today, the more steeply we will have to go on a downward trajectory and the more expensive it will be.

Today we are already experiencing an average change in global temperature of .8˚. With the cumulative amount of emissions that we are going to emit into the atmosphere over the next years, we will easily reach 1.5˚ without even trying to change that trajectory.

Two degrees might still be doable, but it requires significant political will and fast action. And even 2˚ is a significant amount of warming for the planet, and will have consequences in terms of sea level rise, ecosystem changes, possible extinctions of species, displacements of people, diseases, agriculture productivity changes, health related effects and more. But if we can contain global warming within those 2˚, we can manage those effects. I think that’s really the message of the Intergovernmental Panel on Climate Change reports—that’s why the 2˚ limit was chosen, in a sense. It’s a level of warming where we can manage the risks and the consequences. Anything beyond that would be much, much worse.

• Will taking action make our lives better or safer, or will it only make a difference to future generations?

It will make our lives better and safer for sure. For example, let’s think about what it means to replace a coal power plant with a cleaner form of energy like wind or solar. People that live around the coal power plant are going to have a lot less air pollution, which means less asthma for children, and less time wasted because of chronic or acute diseases. In developing countries, you’re talking about potentially millions of lives saved by replacing dirty fossil fuel based power generation with clean energy.

It will also have important consequences for agricultural productivity. There’s a big risk that with the concentration of carbon and other gases in the atmosphere,   agricultural yields will be reduced, so preventing that means more food for everyone.

And then think about cities. If you didn’t have all that pollution from cars, we could live in cities that are less noisy, where the air’s much better, and have potentially better transportation. We could live in better buildings where appliances are more efficient. And investing in energy efficiency would basically leave more money in our pockets. So there are a lot of benefits that we can reap almost immediately, and that’s without even considering the biggest benefit—leaving a planet in decent condition for future generations.

• How will measures to cut carbon emissions affect my life in terms of cost?

To build a climate resilient economy, we need to incorporate the three pillars of energy system transformation that we focus on in all the deep decarbonization pathways. Number one is improving energy efficiency in every part of the economy—buildings, what we use inside buildings, appliances, industrial processes, cars…everything you can think of can perform the same service, but using less energy. What that means is that you will have a slight increase in the price in the form of a small investment up front, like insulating your windows or buying a more efficient car, but you will end up saving a lot more money over the life of the equipment in terms of decreased energy costs.

The second pillar is making electricity, the power sector, carbon-free by replacing dirty power generation with clean power sources. That’s clearly going to cost a little money, but those costs are coming down so quickly. In fact there are already a lot of clean technologies that are at cost parity with fossil fuels— for example, onshore wind is already as competitive as gas—and those costs are only coming down in the future. We can also expect that there are going to be newer technologies. But in any event, the fact that we’re going to use less power because of the first pillar should actually make it a wash in terms of cost.

The Australian deep decarbonization teams have estimated that even with the increased costs of cleaner cars, and more efficient equipment for the home, etc., when the power system transitions to where it’s zero carbon, you still have savings on your energy bills compared to the previous situation.

The third pillar that we think about are clean fuels, essentially zero-carbon fuels. So we either need to electrify everything— like cars and heating, once the power sector is free of carbon—or have low-carbon fuels to power things that cannot be electrified, such as airplanes or big trucks. But once you have efficiency, these types of equipment are also more efficient, and you should be spending less money on energy.

Saving money depends on the three pillars together, thinking about all this as a whole system.

• Given that renewable sources provide only a small percentage of our energy and that nuclear power is so expensive, what can we realistically do to get off fossil fuels as soon as possible?

There are a lot of studies that have been done for the U.S. and for Europe that show that it’s very realistic to think of a power sector that is almost entirely powered by renewables by 2050 or so. It’s actually feasible—and this considers all the issues with intermittency, dealing with the networks, and whatever else represents a technological barrier—that’s all included in these studies. There’s also the assumption that energy storage, like batteries, will be cheaper in the future.

That is the future, but 2050 is not that far away. 35 years for an energy transition is not a long time. It’s important that this transition start now with the right policy incentives in place. We need to make sure that cars are more efficient, that buildings are more efficient, that cities are built with more public transit so less fossil fuels are needed to transport people from one place to another.

I don’t want people to think that because we’re looking at 2050, that means that we can wait—in order to be almost carbon free by 2050, or close to that target, we need to act fast and start now.

• Will the remedies to climate change be worse than the disease? Will it drive more people into poverty with higher costs?

I actually think the opposite is true. If we just let climate go the way we are doing today by continuing business as usual, that will drive many people into poverty. There’s a clear relationship between climate change and changing weather patterns, so more significant and frequent extreme weather events, including droughts, will affect the livelihoods of a large portion of the world population. Once you have droughts or significant weather events like extreme precipitation, you tend to see displacements of people, which create conflict, and conflict creates disease.

I think Syria is a good example of the world that we might be going towards if we don’t do anything about climate change. Syria is experiencing a once-in-a-century drought, and there’s a significant amount of desertification going on in those areas, so you’re looking at more and more arid areas. That affects agriculture, so people have moved from the countryside to the cities and that has created a lot of pressure on the cities. The conflict in Syria is very much related to the drought, and the drought can be ascribed to climate change.

And consider the ramifications of the Syrian crisis: the refugee crisis in Europe, terrorism, security concerns and 7 million-plus people displaced. I think that that’s the world that we’re going towards. And in a world like that, when you have to worry about people being safe and alive, you certainly cannot guarantee wealth and better well-being, or education and health.

• So finally, doing what needs to be done to combat climate change all comes down to political will?

The majority of the American public now believe that climate change is real, that it’s human induced and that we should do something about it.

But there’s seems to be a disconnect between what these numbers seem to indicate and what the political discourse is like… I can’t understand it, yet it seems to be the situation.

I’m a little concerned because other more immediate concerns like terrorism and safety always come first. Because the effects of climate change are going to be felt a little further away, people think that we can always put it off. The Department of Defense, its top-level people, have made the connection between climate change and conflict over the next few decades. That’s why I would argue that Syria is actually a really good example to remind us that if we are experiencing security issues today, it’s also because of environmental problems. We cannot ignore them.

The reality is that we need to do something about climate change fast—we don’t have time to fight this over the next 20 years. We have to agree on this soon and move forward and not waste another 10 years debating.

Read the Deep Decarbonization Pathways Project 2015 report . The full report will be released Dec. 2.

Laura Segafredo was a senior economist at the ClimateWorks Foundation, where she focused on best practice energy policies and their impact on emission trajectories. She was a lead author of the 2012 UNEP Emissions Gap Report and of the Green Growth in Practice Assessment Report. Before joining ClimateWorks, Segafredo was a research economist at Electricité de France in Paris.

She obtained her Ph.D. in energy studies and her BA in economics from the University of Padova (Italy), and her MSc in economics from the University of Toulouse (France).

Related Posts

Air Conditioning Poses a Climate Conundrum

How Greenland’s Ice Holds Clues to Our Future

Learning About Complex Climate Risks

Columbia Climate School has once again been selected as university partner for Climate Week NYC, an annual convening of climate leaders to drive the transition, speed up progress and champion change. Join us for events and follow our coverage .

Many find low wages prohibits saving. Changing personal vehicles and heating systems costs. Will there be financial support for people on low wages?

The energy innovation and dividend bill has already been introduced in the house. It’s a carbon fee and dividend plan. The carbon fee rises every year and 100% of it goes back directly into the hands of the people by a check each month. This helps offset rising costs, especially for lower income folks.

81 cosponsors now Tell your rep in Congress to support this HR 763!

Results show that yields for all four crops grown at levels of carbon dioxide remaining at 2000 levels would experience severe declines in yield due to higher temperatures and drier conditions. But when grown at doubled carbon dioxide levels, all four crops fare better due to increased photosynthesis and crop water productivity, partially offsetting the impacts from those adverse climate changes. For wheat and soybean crops, in terms of yield the median negative impacts are fully compensated, and rice crops recoup up to 90 percent and maize up to 60 percent of their losses.

When is Russia, China, and Mexico going to work toward a better environment instead of the United States trying to do it all? They continue to pollute like they have for years. Who is going to stop the deforestation of the rain forest?

I’m curious if climate change has any effect on seismic activity. It seems with ice melting on the poles and increasing water dispersement and temp of that water, it might cause the plates to shift to compensate. Is there any evidence of this?

this isn’t because of doldrums or jet streams. the pattern keeps having the same action. we must save trees :3

How long do we have, before it’s too late?

Climate Change isn’t nearly as big of a deal as everyone makes it out to be. Meaning no disrespect to the author, but I really don’t see how this is something that we should be worrying about given that one human recycling their soda cans or getting their old phone refurbished rather than dumping it isn’t going to restore the polar ice caps or lower the temperature of the planet. And supposedly agriculture is the problem, but I point-blank refuse to give up my beef night, or bacon and eggs for breakfast on Saturdays. Also, nuclear power is supposed to be a solution, but the building of the power plants is going to add more greenhouse gases than the plant will take out. The whole planet needs a reality check. Earth isn’t going to explode because it’s slightly hotter than it used to be!

Thank you and I need in your help

Get the Columbia Climate School Newsletter

Climate Change High School Questions

Help students understand how climate change poses an extraordinary threat to the planet and its inhabitants through these essay and discussion questions.

Introduction

• In what ways have human activities contributed to climate change as evidenced by increasing average global temperatures? What types of activities contribute most directly and are seen in historic records?
• What are some of the consequences of climate change? How can humans help mitigate climate change?
• Why are scientists so concerned with what they are observing in Greenland? What is the enhanced Greenhouse Effect? How does climate change create an unhealthy melting cycle in Greenland? What will happen if climate change continues to worsen (with average global temperatures rising more than 2.0℃)?
• Why does addressing climate cause challenges at the international level?
• When looking at greenhouse emissions, why is it important to consider both annual and cumulative emissions?
• How can measuring greenhouse gas emissions help guide policy decisions about climate change?
• How should the responsibility for combating climate change be divided up among countries?
• What are the benefits of letting each country decide its own Nationally Defined Contribution (NDC)? What are the limitations of this approach? Why do you think negotiators chose this approach, rather than negotiating each country’s responsibility as they did in the Kyoto Protocol?
• Each country has access to the same information about climate - why do you think their NDCs differ so greatly?
• What do you think the impact of the U.S. withdrawal from the Paris Agreement was? How can countries be persuaded to stay in the agreement in the future?
• Do you think the Paris Agreement is sufficient to address climate change? If not, what further action is needed?
• In what ways will climate change affect life? In what ways will it affect the lives of people around the world?
• What are some examples of ways in which climate change will affect people around the world unequally? What are the effects of this inequality?
• How does climate change contribute to water scarcity?
• In what ways will water scarcity affect your life? In what ways will it affect the lives of people around the world?
• Why is it important to consider how advancements in AI might impact the future of climate change? What are some important aspects for policymakers to consider about AI in relation to climate change?
• Do you think it is worth investing in AI as a means of fighting climate change? Why or why not?
• Do you think the future potential of AI might overshadow the need to address climate change in the short term?
• What are some ways that the Inflation Reduction Act seeks to fight climate change?
• What are some ways that countries can incentivize/disincentivize behaviors related to climate change?
• Should the world focus efforts on mitigation, adaptation, or geoengineering? Why?
• Should developing countries like China and India continue industrializing, even though their carbon emissions are increasing as a result?

• News, Stories & Speeches
• Get Involved
• Structure and leadership
• Committee of Permanent Representatives
• UN Environment Assembly
• Funding and partnerships
• Policies and strategies
• Evaluation Office
• Secretariats and Conventions
• Asia and the Pacific
• Latin America and the Caribbean
• New York Office
• North America
• Climate action
• Nature action
• Chemicals and pollution action
• Digital Transformations
• Disasters and conflicts
• Environment under review
• Environmental law and governance
• Extractives
• Fresh Water
• Green economy
• Ocean, seas and coasts
• Resource efficiency
• Sustainable Development Goals
• Youth, education and environment
• Publications & data

1. Spread the word

Encourage your friends, family and co-workers to reduce their carbon pollution. Join a global movement like  Count Us In, which aims to inspire 1 billion people to take practical steps and challenge their leaders to act more boldly on climate. Organizers of the platform say that if 1 billion people took action, they could reduce as much as 20 per cent of global carbon emissions. Or you could sign up to the UN’s  #ActNow campaign on climate change and sustainability and add your voice to this critical global debate.

2. Keep up the political pressure

Lobby local politicians and businesses to support efforts to cut emissions and reduce carbon pollution.  #ActNow Speak Up  has sections on political pressure and corporate action - and Count Us In also has  some handy tips  for how to do this. Pick an environmental issue you care about, decide on a specific request for change and then try to arrange a meeting with your local representative. It might seem intimidating but your voice deserves to be heard. If humanity is to succeed in tackling the climate emergency, politicians must be part of the solution. It’s up to all of us to keep up with the pressure. 

3. Transform your transport

Transport accounts for around a quarter of all greenhouse gas emissions and across the world, many governments are implementing policies to decarbonize travel. You can get a head start: leave your car at home and walk or cycle whenever possible. If the distances are too great, choose public transport, preferably electric options. If you must drive, offer to carpool with others so that fewer cars are on the road. Get ahead of the curve and buy an electric car. Reduce the number of long-haul flights you take. 

4. Rein in your power use

If you can, switch to a zero-carbon or renewable energy provider. Install solar panels on your roof. Be more efficient: turn your heating down a degree or two, if possible. Switch off appliances and lights when you are not using them and better yet buy the most efficient products in the first place (hint: this will save you money!). Insulate your loft or roof: you’ll be warmer in the winter, cooler in the summer and save some money too. 

5. Tweak your diet

Eat more plant-based meals – your body and the planet will thank you. Today, around 60 per cent of the world’s agricultural land is used for livestock grazing and people in many countries are consuming more animal-sourced food than is healthy. Plant-rich diets can help reduce chronic illnesses, such as heart disease, stroke, diabetes and cancer.

The climate emergency demands action from all of us. We need to get to net zero greenhouse gas emissions by 2050 and everyone has a role to play.

6. Shop local and buy sustainable

To reduce your food’s carbon footprint, buy local and seasonal foods. You’ll be helping small businesses and farms in your area and reducing fossil fuel emissions associated with transport and cold chain storage. Sustainable agriculture uses up to 56 per cent less energy, creates 64 per cent fewer emissions and allows for greater levels of biodiversity than conventional farming. Go one step further and try growing your own fruit, vegetables and herbs. You can plant them in a garden, on a balcony or even on a window sill. Set up a community garden in your neighbourhood to get others involved. 

7. Don’t waste food

One-third of all food produced is either lost or wasted. According to UNEP’s  Food Waste Index Report 2021 , people globally waste 1 billion tonnes of food each year, which accounts for around 8-10 per cent of global greenhouse gas emissions. Avoid waste by only buying what you need. Take advantage of every edible part of the foods you purchase. Measure portion sizes of rice and other staples before cooking them, store food correctly (use your freezer if you have one), be creative with leftovers, share extras with your friends and neighbours and contribute to a local food-sharing scheme. Make compost out of inedible remnants and use it to fertilize your garden. Composting is one of the best options for managing organic waste while also reducing environmental impacts.

8. Dress (climate) smart

The fashion industry accounts for 8-10 per cent of global carbon emissions – more than all international flights and maritime shipping combined – and ‘fast fashion’ has created a throwaway culture that sees clothes quickly end up in landfills. But we can change this. Buy fewer new clothes and wear them longer. Seek out sustainable labels and use rental services for special occasions rather than buying new items that will only be worn once. Recycle pre-loved clothes and repair when necessary.

9. Plant trees  

Every year approximately 12 million hectares of forest are destroyed and this deforestation, together with agriculture and other land use changes, is responsible for roughly 25 per cent of global greenhouse gas emissions. We can all play a part in reversing this trend by planting trees, either individually or as part of a collective. For example, the Plant-for-the-Planet initiative allows people to sponsor tree-planting around the world.

Check out this UNEP guide to see what else you can do as part of the UN Decade on Ecosystem Restoration , a global drive to halt the degradation of land and oceans, protect biodiversity, and rebuild ecosystems. 

10. Focus on planet-friendly investments

Individuals can also spur change through their savings and investments by choosing financial institutions that do not invest in carbon-polluting industries. #ActNow Speak Up  has a section on money and so does  Count Us In . This sends a clear signal to the market and already many financial institutions are offering more ethical investments, allowing you to use your money to support causes you believe in and avoid those you don’t. You can ask your financial institution about their responsible banking policies and find out how they rank in independent research. 

UNEP is at the front in support of the Paris Agreement goal of keeping the global temperature rise well below 2°C, and aiming - to be safe - for 1.5°C, compared to pre-industrial levels. To do this, UNEP has developed a Six-Sector Solution . The Six Sector Solution is a roadmap to reducing emissions across sectors in line with the Paris Agreement commitments and in pursuit of climate stability. The six sectors identified are Energy; Industry; Agriculture & Food; Forests & Land Use; Transport; and Buildings & Cities.

• Clean fuels
• Energy Efficiency
• Sustainable Development

Further Resources

• 7 climate action highlights to remember before COP26
• Climate Action Note - data you need to know
• Emissions Gap Report 2021
• Food Waste Index 2021
• Act Now: the UN campaign for individual action
• Count Us In
• Food Loss and Waste Website

Related Content

Related Sustainable Development Goals

© 2024 UNEP Terms of Use Privacy   Report Project Concern Report Scam Contact Us

Suggestions or feedback?

MIT News | Massachusetts Institute of Technology

• Machine learning
• Sustainability
• Black holes
• Classes and programs

Departments

• Aeronautics and Astronautics
• Brain and Cognitive Sciences
• Architecture
• Political Science
• Mechanical Engineering

Centers, Labs, & Programs

• Abdul Latif Jameel Poverty Action Lab (J-PAL)
• Picower Institute for Learning and Memory
• Lincoln Laboratory
• School of Architecture + Planning
• School of Engineering
• School of Humanities, Arts, and Social Sciences
• Sloan School of Management
• School of Science
• MIT Schwarzman College of Computing

Study: Reflecting sunlight to cool the planet will cause other global changes

Press contact :, media download.

*Terms of Use:

Images for download on the MIT News office website are made available to non-commercial entities, press and the general public under a Creative Commons Attribution Non-Commercial No Derivatives license . You may not alter the images provided, other than to crop them to size. A credit line must be used when reproducing images; if one is not provided below, credit the images to "MIT."

Previous image Next image

How can the world combat the continued rise in global temperatures? How about shading the Earth from a portion of the sun’s heat by injecting the stratosphere with reflective aerosols? After all, volcanoes do essentially the same thing, albeit in short, dramatic bursts: When a Vesuvius erupts, it blasts fine ash into the atmosphere, where the particles can linger as a kind of cloud cover, reflecting solar radiation back into space and temporarily cooling the planet.

Some researchers are exploring proposals to engineer similar effects, for example by launching reflective aerosols into the stratosphere — via planes, balloons, and even blimps — in order to block the sun’s heat and counteract global warming. But such solar geoengineering schemes, as they are known, could have other long-lasting effects on the climate.

Now scientists at MIT have found that solar geoengineering would significantly change extratropical storm tracks — the zones in the middle and high latitudes where storms form year-round and are steered by the jet stream across the oceans and land. Extratropical storm tracks give rise to extratropical cyclones, and not their tropical cousins, hurricanes. The strength of extratropical storm tracks determines the severity and frequency of storms such as nor’easters in the United States.

The team considered an idealized scenario in which solar radiation was reflected enough to offset the warming that would occur if carbon dioxide were to quadruple in concentration. In a number of global climate models under this scenario, the strength of storm tracks in both the northern and southern hemispheres weakened significantly in response.

Weakened storm tracks would mean less powerful winter storms, but the team cautions that weaker storm tracks also lead to stagnant conditions, particularly in summer, and less wind to clear away air pollution. Changes in winds could also affect the circulation of ocean waters and, in turn, the stability of ice sheets.

“About half the world’s population lives in the extratropical regions where storm tracks dominate weather,” says Charles Gertler, a graduate student in MIT’s Department of Earth, Atmospheric and Planetary Sciences (EAPS). “Our results show that solar geoengineering will not simply reverse climate change. Instead, it has the potential itself to induce novel changes in climate.”

Gertler and his colleagues have published their results this week in the journal Geophysical Research Letters . Co-authors include EAPS Professor Paul O’Gorman, along with Ben Kravitz of Indiana University, John Moore of Beijing Normal University, Steven Phipps of the University of Tasmania, and Shingo Watanabe of the Japan Agency for Marine-Earth Science and Technology

A not-so-sunny picture

Scientists have previously modeled what Earth’s climate might look like if solar geoengineering scenarios were to play out on a global scale, with mixed results. On the one hand, spraying aerosols into the stratosphere would reduce incoming solar heat and, to a degree, counteract the warming caused by carbon dioxide emissions. On the other hand, such cooling of the planet would not prevent other greenhouse gas-induced effects such as regional reductions in rainfall and ocean acidification.

There have also been signs that intentionally reducing solar radiation would shrink the temperature difference between the Earth’s equator and poles or, in climate parlance, weaken the planet’s meridional temperature gradient, cooling the equator while the poles continue to warm. This last consequence was especially intriguing to Gertler and O’Gorman.

“Storm tracks feed off of meridional temperature gradients, and storm tracks are interesting because they help us to understand weather extremes,” Gertler says. “So we were interested in how geoengineering affects storm tracks.”  

The team looked at how extratropical storm tracks might change under a scenario of solar geoengineering known to climate scientists as experiment G1 of the Geoengineering Model Intercomparison Project (GeoMIP), a project that provides various geoengineering scenarios for scientists to run on climate models to assess their various climate effects.

The G1 experiment assumes an idealized scenario in which a solar geoengineering scheme blocks enough solar radiation to counterbalance the warming that would occur if carbon dioxide concentrations were to quadruple.

The researchers used results from various climate models run forward in time under the conditions of the G1 experiment. They also used results from a more sophisticated geoengineering scenario with doubling of carbon dioxide concentrations and aerosols injected into the stratosphere at more than one latitude. In each model they recorded the day-to-day change in air pressure at sea level pressure at various locations along the storm tracks. These changes reflect the passage of storms and measure a storm track’s energy.

“If we look at the variance in sea level pressure, we have a sense of how often and how strongly cyclones pass over each area,” Gertler explains. “We then average the variance across the whole extratropical region, to get an average value of storm track strength for the northern and southern hemispheres.”

An imperfect counterbalance

Their results, across climate models, showed that solar geoengineering would weaken storm tracks in both Northern and Southern hemispheres. Depending on the scenario they considered, the storm track in the Northern Hemisphere would be 5 to 17 percent weaker than it is today.

“A weakened storm track, in both hemispheres, would mean weaker winter storms but also lead to more stagnant weather, which could affect heat waves,” Gertler says. “Across all seasons, this could affect ventilation of air pollution. It also may contribute to a weakening of the hydrological cycle, with regional reductions in rainfall. These are not good changes, compared to a baseline climate that we are used to.”

The researchers were curious to see how the same storm tracks would respond to just global warming alone, without the addition of social geoengineering, so they ran the climate models again under several warming-only scenarios. Surprisingly, they found that, in the northern hemisphere, global warming would also weaken storm tracks, by the same magnitude as with the addition of solar geoengineering. This suggests solar geoengineering, and efforts to cool the Earth by reducing incoming heat, would not do much to alter global warming’s effects, at least on storm tracks — a puzzling outcome that the researchers are unsure how to explain.

In the Southern Hemisphere, there is a slightly different story. They found that global warming alone would strengthen storm tracks there, whereas the addition of solar geoengineering would prevent this strengthening, and even further, would weaken the storm tracks there.

“In the Southern Hemisphere, winds drive ocean circulation, which in turn could affect uptake of carbon dioxide, and  the stability of the Antarctic ice sheet,” O’Gorman adds. “So how storm tracks change over the Southern Hemisphere is quite important.”

The team also observed that the weakening of storm tracks was strongly correlated with changes in temperature and humidity. Specifically, the climate models showed that in response to reduced incoming solar radiation, the equator cooled significantly as the poles continued to warm. This reduced temperature gradient appears to be sufficient to explain the weakening storm tracks — a result that the group is the first to demonstrate.

“This work highlights that solar geoengineering is not reversing climate change, but is substituting one unprecedented climate state for another,” Gertler says. “Reflecting sunlight isn’t a perfect counterbalance to the greenhouse effect.”

Adds O’Gorman: “There are multiple reasons to avoid doing this, and instead to favor reducing emissions of CO 2 and other greenhouse gases.”

This research was funded, in part, by the National Science Foundation, NASA, and the Industry and Foundation sponsors of the MIT Joint Program on the Science and Policy of Global Change.

Share this news article on:

Press mentions, popular mechanics.

Popular Mechanics reporter Caroline Delbert writes that a study by MIT researchers finds that solar geoengineering efforts aimed at cooling the planet would change extratropical storm tracks. “The scientists discovered an amount of aerosol coverage required to offset that much more carbon dioxide would alter the storm tracks in both hemispheres and around the world,” says Delbert.

Previous item Next item

Related Links

• Paper: “Weakening of the extratropical storm tracks in solar geoengineering scenarios.”
• Paul O’Gorman
• Charles Gertler
• Department of Earth, Atmospheric and Planetary Sciences

Related Topics

• Climate change
• Earth and atmospheric sciences
• Environment
• National Science Foundation (NSF)

Related Articles

Experts urge “full speed ahead” on climate action

Climate change makes summer weather stormier yet more stagnant

3Q: Machine learning and climate modeling

Varied increases in extreme rainfall with global warming

Study finds more extreme storms ahead for California

More mit news.

Study: Transparency is often lacking in datasets used to train large language models

Read full story →

How MIT’s online resources provide a “highly motivating, even transformative experience”

Students learn theater design through the power of play

A framework for solving parabolic partial differential equations

Designing better delivery for medical therapies

Making a measurable economic impact

• More news on MIT News homepage →

Massachusetts Institute of Technology 77 Massachusetts Avenue, Cambridge, MA, USA

• Map (opens in new window)
• Events (opens in new window)
• People (opens in new window)
• Careers (opens in new window)
• Accessibility
• Social Media Hub
• MIT on Facebook
• MIT on YouTube
• MIT on Instagram

• Share full article

Advertisement

Supported by

Urgent Calls for Action on the Climate

More from our inbox:.

• America’s Test: Will It Elect a Felon as President?
• In Gov. Walz, Echoes of Another Coach
• Revised Jobs Report
• The Key to Happiness

To the Editor:

Re “ How Close Are the Planet’s Climate Tipping Points? ” (Science Times, Aug. 20):

This beautiful yet frightening article highlights the urgent need to drastically cut emissions to tackle climate change, an objective that will require sustained social movement participation.

While the approach of the planet’s tipping points is daunting and progress has been far too minimal, major policy changes are rarely gradual. They come when science and public pressure converge to create political tipping points.

Case in point: the first Earth Day, April 22, 1970, when an estimated 20 million people joined events to demand action to address years of terrible environmental and air pollution, leading to landmark legislation such as the Clean Air and Clean Water Acts.

As we experience increasingly severe climate impacts, the silver lining is the power that people have to influence change.

Collectively, we can push climate change to the forefront of policy agendas by organizing our communities, joining environmental organizations and protests, and voting for elected officials who support climate action — and then pressing them to enact ambitious policies.

John H. Armstrong Seattle The writer is an assistant professor of environmental studies at Seattle University.

We are having trouble retrieving the article content.

Please enable JavaScript in your browser settings.

Thank you for your patience while we verify access. If you are in Reader mode please exit and  log into  your Times account, or  subscribe  for all of The Times.

Thank you for your patience while we verify access.

Already a subscriber?  Log in .

Want all of The Times?  Subscribe .

Climate Change: Evidence and Causes: Update 2020 (2020)

Chapter: conclusion, c onclusion.

This document explains that there are well-understood physical mechanisms by which changes in the amounts of greenhouse gases cause climate changes. It discusses the evidence that the concentrations of these gases in the atmosphere have increased and are still increasing rapidly, that climate change is occurring, and that most of the recent change is almost certainly due to emissions of greenhouse gases caused by human activities. Further climate change is inevitable; if emissions of greenhouse gases continue unabated, future changes will substantially exceed those that have occurred so far. There remains a range of estimates of the magnitude and regional expression of future change, but increases in the extremes of climate that can adversely affect natural ecosystems and human activities and infrastructure are expected.

Citizens and governments can choose among several options (or a mixture of those options) in response to this information: they can change their pattern of energy production and usage in order to limit emissions of greenhouse gases and hence the magnitude of climate changes; they can wait for changes to occur and accept the losses, damage, and suffering that arise; they can adapt to actual and expected changes as much as possible; or they can seek as yet unproven “geoengineering” solutions to counteract some of the climate changes that would otherwise occur. Each of these options has risks, attractions and costs, and what is actually done may be a mixture of these different options. Different nations and communities will vary in their vulnerability and their capacity to adapt. There is an important debate to be had about choices among these options, to decide what is best for each group or nation, and most importantly for the global population as a whole. The options have to be discussed at a global scale because in many cases those communities that are most vulnerable control few of the emissions, either past or future. Our description of the science of climate change, with both its facts and its uncertainties, is offered as a basis to inform that policy debate.

A CKNOWLEDGEMENTS

The following individuals served as the primary writing team for the 2014 and 2020 editions of this document:

• Eric Wolff FRS, (UK lead), University of Cambridge
• Inez Fung (NAS, US lead), University of California, Berkeley
• Brian Hoskins FRS, Grantham Institute for Climate Change
• John F.B. Mitchell FRS, UK Met Office
• Tim Palmer FRS, University of Oxford
• Benjamin Santer (NAS), Lawrence Livermore National Laboratory
• John Shepherd FRS, University of Southampton
• Keith Shine FRS, University of Reading.
• Susan Solomon (NAS), Massachusetts Institute of Technology
• Kevin Trenberth, National Center for Atmospheric Research
• John Walsh, University of Alaska, Fairbanks
• Don Wuebbles, University of Illinois

Staff support for the 2020 revision was provided by Richard Walker, Amanda Purcell, Nancy Huddleston, and Michael Hudson. We offer special thanks to Rebecca Lindsey and NOAA Climate.gov for providing data and figure updates.

The following individuals served as reviewers of the 2014 document in accordance with procedures approved by the Royal Society and the National Academy of Sciences:

• Richard Alley (NAS), Department of Geosciences, Pennsylvania State University
• Alec Broers FRS, Former President of the Royal Academy of Engineering
• Harry Elderfield FRS, Department of Earth Sciences, University of Cambridge
• Joanna Haigh FRS, Professor of Atmospheric Physics, Imperial College London
• Isaac Held (NAS), NOAA Geophysical Fluid Dynamics Laboratory
• John Kutzbach (NAS), Center for Climatic Research, University of Wisconsin
• Jerry Meehl, Senior Scientist, National Center for Atmospheric Research
• John Pendry FRS, Imperial College London
• John Pyle FRS, Department of Chemistry, University of Cambridge
• Gavin Schmidt, NASA Goddard Space Flight Center
• Emily Shuckburgh, British Antarctic Survey
• Gabrielle Walker, Journalist
• Andrew Watson FRS, University of East Anglia

The Support for the 2014 Edition was provided by NAS Endowment Funds. We offer sincere thanks to the Ralph J. and Carol M. Cicerone Endowment for NAS Missions for supporting the production of this 2020 Edition.

F OR FURTHER READING

For more detailed discussion of the topics addressed in this document (including references to the underlying original research), see:

• Intergovernmental Panel on Climate Change (IPCC), 2019: Special Report on the Ocean and Cryosphere in a Changing Climate [ https://www.ipcc.ch/srocc ]
• National Academies of Sciences, Engineering, and Medicine (NASEM), 2019: Negative Emissions Technologies and Reliable Sequestration: A Research Agenda [ https://www.nap.edu/catalog/25259 ]
• Royal Society, 2018: Greenhouse gas removal [ https://raeng.org.uk/greenhousegasremoval ]
• U.S. Global Change Research Program (USGCRP), 2018: Fourth National Climate Assessment Volume II: Impacts, Risks, and Adaptation in the United States [ https://nca2018.globalchange.gov ]
• IPCC, 2018: Global Warming of 1.5°C [ https://www.ipcc.ch/sr15 ]
• USGCRP, 2017: Fourth National Climate Assessment Volume I: Climate Science Special Reports [ https://science2017.globalchange.gov ]
• NASEM, 2016: Attribution of Extreme Weather Events in the Context of Climate Change [ https://www.nap.edu/catalog/21852 ]
• IPCC, 2013: Fifth Assessment Report (AR5) Working Group 1. Climate Change 2013: The Physical Science Basis [ https://www.ipcc.ch/report/ar5/wg1 ]
• NRC, 2013: Abrupt Impacts of Climate Change: Anticipating Surprises [ https://www.nap.edu/catalog/18373 ]
• NRC, 2011: Climate Stabilization Targets: Emissions, Concentrations, and Impacts Over Decades to Millennia [ https://www.nap.edu/catalog/12877 ]
• Royal Society 2010: Climate Change: A Summary of the Science [ https://royalsociety.org/topics-policy/publications/2010/climate-change-summary-science ]
• NRC, 2010: America’s Climate Choices: Advancing the Science of Climate Change [ https://www.nap.edu/catalog/12782 ]

Much of the original data underlying the scientific findings discussed here are available at:

• https://data.ucar.edu/
• https://climatedataguide.ucar.edu
• https://iridl.ldeo.columbia.edu
• https://ess-dive.lbl.gov/
• https://www.ncdc.noaa.gov/
• https://www.esrl.noaa.gov/gmd/ccgg/trends/
• http://scrippsco2.ucsd.edu
• http://hahana.soest.hawaii.edu/hot/

Climate change is one of the defining issues of our time. It is now more certain than ever, based on many lines of evidence, that humans are changing Earth's climate. The Royal Society and the US National Academy of Sciences, with their similar missions to promote the use of science to benefit society and to inform critical policy debates, produced the original Climate Change: Evidence and Causes in 2014. It was written and reviewed by a UK-US team of leading climate scientists. This new edition, prepared by the same author team, has been updated with the most recent climate data and scientific analyses, all of which reinforce our understanding of human-caused climate change.

Scientific information is a vital component for society to make informed decisions about how to reduce the magnitude of climate change and how to adapt to its impacts. This booklet serves as a key reference document for decision makers, policy makers, educators, and others seeking authoritative answers about the current state of climate-change science.

READ FREE ONLINE

Welcome to OpenBook!

You're looking at OpenBook, NAP.edu's online reading room since 1999. Based on feedback from you, our users, we've made some improvements that make it easier than ever to read thousands of publications on our website.

Do you want to take a quick tour of the OpenBook's features?

Show this book's table of contents , where you can jump to any chapter by name.

...or use these buttons to go back to the previous chapter or skip to the next one.

Jump up to the previous page or down to the next one. Also, you can type in a page number and press Enter to go directly to that page in the book.

Switch between the Original Pages , where you can read the report as it appeared in print, and Text Pages for the web version, where you can highlight and search the text.

To search the entire text of this book, type in your search term here and press Enter .

Share a link to this book page on your preferred social network or via email.

View our suggested citation for this chapter.

Ready to take your reading offline? Click here to buy this book in print or download it as a free PDF, if available.

Get Email Updates

Do you enjoy reading reports from the Academies online for free ? Sign up for email notifications and we'll let you know about new publications in your areas of interest when they're released.

Essays on climate crisis a welcome call to action

Share this:.

• Click to share on Twitter (Opens in new window)
• Click to share on Facebook (Opens in new window)
• Click to print (Opens in new window)
• Click to email a link to a friend (Opens in new window)
• Click to share on Reddit (Opens in new window)
• Things to do
• Real Estate
• Newsletters

Breaking News

San diego unified superintendent terminated after investigation found ‘inappropriate conduct’, opinion letters to the editor.

I encourage people to do the same thing now to address climate change. Send your elected representatives emails supporting climate initiatives. Details about bipartisan carbon fee and dividend legislation, permitting reform and upgrading our national grid can be found on the Citizens’ Climate Lobby website. This outreach takes only a few minutes and their offices will respond. We can’t risk worsening wildfires, floods and increasing food prices.

— Margaret Mann, Point Loma

Do your part on the climate crisis

Thank you for featuring three op-eds on climate change. Now everyone needs to answer Michelle Obama’s question: What are you going to do? There are simple and effective actions people can take. Volunteer for the Environmental Voter Project, which works to have people who are concerned about the environment become regular voters. Volunteer for Citizens’ Climate Lobby, the most effective organization in the country at helping Congress to pass meaningful climate legislation. It’s election season, ask candidates what they are going to do about climate change and remind them you are a climate voter. Joan Baez said “action is the antidote to despair.”  We are grateful the Union-Tribune gave so much space to this critical issue. Now it’s up to the rest of us to get to work.

— Mark Reynolds, Loma Portal

More in Opinion

What surprises will Legislature’s late-session votes yield this year?

Vulnerable groups very much need COVID booster shot

Opinion Columnists | Steven Greenhut: Why, yes, let’s put California policies in the national spotlight

Opinion: The magic of cycling fills my heart with joy