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Lesson of the Day

Explore 7 Climate Change Solutions

In this lesson, students will use a jigsaw activity to learn about some of the most effective strategies and technologies that can help head off the worst effects of global warming.

By Natalie Proulx

Lesson Overview

Earlier this summer, a report issued by the Intergovernmental Panel on Climate Change , a body of scientists convened by the United Nations, found that some devastating impacts of global warming were unavoidable. But there is still a short window to stop things from getting even worse.

This report will be central at COP26 , the international climate summit where about 20,000 heads of state, diplomats and activists are meeting in person this week to set new targets for cutting emissions from coal, oil and gas that are heating the planet.

In this lesson, you will learn about seven ways we can slow down climate change and head off some of its most catastrophic consequences while we still have time. Using a jigsaw activity , you’ll become an expert in one of these strategies or technologies and share what you learn with your classmates. Then, you will develop your own climate plan and consider ways you can make a difference based on your new knowledge.

What do you know about the ways the world can slow climate change? Start by making a list of strategies, technologies or policies that could help solve the climate crisis.

Which of your ideas do you think could have the biggest impact on climate change? Circle what you think might be the top three.

Now, test your knowledge by taking this 2017 interactive quiz:

How Much Do You Know About Solving Global Warming?

A new book presents 100 potential solutions. Can you figure out which ones are top ranked?

After you’ve finished, reflect on your own in writing or in discussion with a partner:

What solutions to climate change did you learn about that you didn’t know before?

Were you surprised by any of the answers in the quiz? If so, which ones and why?

What questions do you still have about solving climate change?

Jigsaw Activity

As you learned in the warm-up, there are many possible ways to mitigate the worst effects of climate change. Below we’ve rounded up seven of the most effective solutions, many of which you may have been introduced to in the quiz above.

In this jigsaw activity, you’ll become an expert in one of the climate solutions listed below and then present what you learned to your classmates. Teachers may assign a student or small group to each topic, or allow them to choose. Students, read at least one of the linked articles on your topic; you can also use that article as a jumping-off point for more research.

Climate Change Solutions

Renewable energy: Scientists agree that to avoid the most catastrophic effects of climate change, countries must immediately move away from dirty energy sources like coal, oil and gas, and instead turn to renewable energy sources like wind, solar or nuclear power. Read about the potent possibilities of one of these producers, offshore wind farms , and see how they operate .

Refrigerants: It’s not the most exciting solution to climate change, but it is one of the most effective. Read about how making refrigerants, like air-conditioners, more efficient could eliminate a full degree Celsius of warming by 2100.

Transportation: Across the globe, governments are focused on limiting one of the world’s biggest sources of pollution: gasoline-powered cars. Read about the promises and challenges of electric vehicles or about how countries are rethinking their transit systems .

Methane emissions: You hear a lot about the need to reduce carbon dioxide in the atmosphere, but what about its dangerous cousin, methane? Read about ideas to halt methane emissions and why doing so could be powerful in the short-term fight against climate change.

Agriculture: Efforts to limit global warming often target fossil fuels, but cutting greenhouse gases from food production is urgent, too, research says. Read about four fixes to earth’s food supply that could go a long way.

Nature conservation: Scientists agree that reversing biodiversity loss is a crucial way to slow climate change. Read about how protecting and restoring nature can help cool the planet or about how Indigenous communities could lead the way .

Carbon capture: Eliminating emissions alone may not be enough to avoid some of the worst effects of climate change, so some companies are investing in technology that sucks carbon dioxide out of the air. Learn more about so-called engineered carbon removal .

Questions to Consider

As you read about your climate solution, respond to the questions below. You can record your answers in this graphic organizer (PDF).

1. What is the solution? How does it work?

2. What problem related to climate change does this strategy address?

3. What effect could it have on global warming?

4. Compared with other ways to mitigate climate change, how effective is this one? Why?

5. What are the limitations of this solution?

6. What are some of the challenges or risks (political, social, economic or technical) of this idea?

7. What further questions do you have about this strategy?

When you’ve finished, you’ll meet in “teaching groups” with at least one expert in each of the other climate solutions. Share what you know about your topic with your classmates and record what you learn from them in your graphic organizer .

Going Further

Option 1: Develop a climate plan.

Scientists say that in order to prevent the average global temperature from rising more than 1.5 degrees Celsius, the threshold beyond which the dangers of global warming grow immensely, we will need to enact all of the solutions you learned about — and more. However, the reality is that countries won’t be able to right away. They will have to consider which can have the biggest or fastest impact on climate change, which are the most cost-effective and which are the most politically and socially feasible.

Imagine you have been asked to come up with a plan to address climate change. If you were in charge, which of these seven solutions would you prioritize and why? You might start by ranking the solutions you learned about from the most effective or urgent to the least.

Then, write a proposal for your plan that responds to the following questions:

What top three solutions are priorities? That is, which do you think are the most urgent to tackle right away and the most effective at slowing global warming?

Explain your decisions. According to your research — the articles you read and the quiz you took in the beginning of the lesson — why should these solutions take precedence?

How might you incentivize companies and citizens to embrace these changes? For some ideas, you might read more about the climate policies countries around the world have adopted to help reduce greenhouse gas emissions.

Option 2: Take action.

Thinking about climate change solutions on such a big scale can be overwhelming, but there are things you can do in your own life and in your community to make a difference. Choose one of the activities below to take action on, or come up with one of your own:

Share climate solutions via media. Often, the news media focuses more on climate change problems than solutions. Counteract this narrative by creating something for publication related to one or more of the solutions you learned about. For example, you could submit a letter to the editor , write an article for your school newspaper, enter a piece in one of our upcoming student contests or create an infographic to share on social media .

Make changes in your own life. How can you make good climate choices related to one or more of the topics you learned about? For example, you could eat less meat, take public transportation or turn off your air-conditioner. Write a plan, explaining what you will do (or what you are already doing) and how it could help mitigate climate change, according to the research.

Join a movement. This guest essay urges people to focus on systems, not themselves. What groups could you get involved with that are working toward some of the solutions you learned about? Identify at least one group, either local, national or international, and one way you could support it. Or, if you’re old enough to vote, consider a local, state or federal politician you would like to support based on his or her climate policies.

Want more Lessons of the Day? You can find them all here .

Natalie Proulx joined The Learning Network as a staff editor in 2017 after working as an English language arts teacher and curriculum writer. More about Natalie Proulx

November 26, 2007

10 Solutions for Climate Change

Ten possibilities for staving off catastrophic climate change

By David Biello

Mark Garlick Getty Images

The enormity of global warming can be daunting and dispiriting. What can one person, or even one nation, do on their own to slow and reverse climate change ? But just as ecologist Stephen Pacala and physicist Robert Socolow, both at Princeton University, came up with 15 so-called " wedges " for nations to utilize toward this goal—each of which is challenging but feasible and, in some combination, could reduce greenhouse gas emissions to safer levels —there are personal lifestyle changes that you can make too that, in some combination, can help reduce your carbon impact. Not all are right for everybody. Some you may already be doing or absolutely abhor. But implementing just a few of them could make a difference.

Forego Fossil Fuels —The first challenge is eliminating the burning of coal , oil and, eventually, natural gas. This is perhaps the most daunting challenge as denizens of richer nations literally eat, wear, work, play and even sleep on the products made from such fossilized sunshine. And citizens of developing nations want and arguably deserve the same comforts, which are largely thanks to the energy stored in such fuels.

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Oil is the lubricant of the global economy, hidden inside such ubiquitous items as plastic and corn, and fundamental to the transportation of both consumers and goods. Coal is the substrate, supplying roughly half of the electricity used in the U.S. and nearly that much worldwide—a percentage that is likely to grow, according to the International Energy Agency. There are no perfect solutions for reducing dependence on fossil fuels (for example, carbon neutral biofuels can drive up the price of food and lead to forest destruction, and while nuclear power does not emit greenhouse gases, it does produce radioactive waste), but every bit counts.

So try to employ alternatives when possible—plant-derived plastics, biodiesel, wind power—and to invest in the change, be it by divesting from oil stocks or investing in companies practicing carbon capture and storage.

Infrastructure Upgrade —Buildings worldwide contribute around one third of all greenhouse gas emissions (43 percent in the U.S. alone), even though investing in thicker insulation and other cost-effective, temperature-regulating steps can save money in the long run. Electric grids are at capacity or overloaded, but power demands continue to rise. And bad roads can lower the fuel economy of even the most efficient vehicle. Investing in new infrastructure, or radically upgrading existing highways and transmission lines, would help cut greenhouse gas emissions and drive economic growth in developing countries.

Of course, it takes a lot of cement, a major source of greenhouse gas emissions, to construct new buildings and roads. The U.S. alone contributed 50.7 million metric tons of carbon dioxide to the atmosphere in 2005 from cement production, which requires heating limestone and other ingredients to 1,450 degrees Celsius (2,642 degrees Fahrenheit). Mining copper and other elements needed for electrical wiring and transmission also causes globe-warming pollution.

But energy-efficient buildings and improved cement-making processes (such as using alternative fuels to fire up the kiln) could reduce greenhouse gas emissions in the developed world and prevent them in the developing world.

Move Closer to Work —Transportation is the second leading source of greenhouse gas emissions in the U.S. (burning a single gallon of gasoline produces 20 pounds of CO 2 ). But it doesn't have to be that way.

One way to dramatically curtail transportation fuel needs is to move closer to work, use mass transit, or switch to walking, cycling or some other mode of transport that does not require anything other than human energy. There is also the option of working from home and telecommuting several days a week.

Cutting down on long-distance travel would also help, most notably airplane flights, which are one of the fastest growing sources of greenhouse gas emissions and a source that arguably releases such emissions in the worst possible spot (higher in the atmosphere). Flights are also one of the few sources of globe-warming pollution for which there isn't already a viable alternative: jets rely on kerosene, because it packs the most energy per pound, allowing them to travel far and fast, yet it takes roughly 10 gallons of oil to make one gallon of JetA fuel. Restricting flying to only critical, long-distance trips—in many parts of the world, trains can replace planes for short- to medium-distance trips—would help curb airplane emissions.

Consume Less —The easiest way to cut back on greenhouse gas emissions is simply to buy less stuff. Whether by forgoing an automobile or employing a reusable grocery sack, cutting back on consumption results in fewer fossil fuels being burned to extract, produce and ship products around the globe.

Think green when making purchases. For instance, if you are in the market for a new car, buy one that will last the longest and have the least impact on the environment. Thus, a used vehicle with a hybrid engine offers superior fuel efficiency over the long haul while saving the environmental impact of new car manufacture.

Paradoxically, when purchasing essentials, such as groceries, buying in bulk can reduce the amount of packaging—plastic wrapping, cardboard boxes and other unnecessary materials. Sometimes buying more means consuming less.

Be Efficient —A potentially simpler and even bigger impact can be made by doing more with less. Citizens of many developed countries are profligate wasters of energy, whether by speeding in a gas-guzzling sport-utility vehicle or leaving the lights on when not in a room.

Good driving—and good car maintenance, such as making sure tires are properly inflated—can limit the amount of greenhouse gas emissions from a vehicle and, perhaps more importantly, lower the frequency of payment at the pump.

Similarly, employing more efficient refrigerators, air conditioners and other appliances, such as those rated highly under the U.S. Environmental Protection Agency's Energy Star program, can cut electric bills while something as simple as weatherproofing the windows of a home can reduce heating and cooling bills. Such efforts can also be usefully employed at work, whether that means installing more efficient turbines at the power plant or turning the lights off when you leave the office .

Eat Smart, Go Vegetarian? —Corn grown in the U.S. requires barrels of oil for the fertilizer to grow it and the diesel fuel to harvest and transport it. Some grocery stores stock organic produce that do not require such fertilizers, but it is often shipped from halfway across the globe. And meat, whether beef, chicken or pork, requires pounds of feed to produce a pound of protein.

Choosing food items that balance nutrition, taste and ecological impact is no easy task. Foodstuffs often bear some nutritional information, but there is little to reveal how far a head of lettuce, for example, has traveled.

University of Chicago researchers estimate that each meat-eating American produces 1.5 tons more greenhouse gases through their food choice than do their vegetarian peers. It would also take far less land to grow the crops necessary to feed humans than livestock, allowing more room for planting trees.

Stop Cutting Down Trees —Every year, 33 million acres of forests are cut down . Timber harvesting in the tropics alone contributes 1.5 billion metric tons of carbon to the atmosphere. That represents 20 percent of human-made greenhouse gas emissions and a source that could be avoided relatively easily.

Improved agricultural practices along with paper recycling and forest management—balancing the amount of wood taken out with the amount of new trees growing—could quickly eliminate this significant chunk of emissions.

And when purchasing wood products, such as furniture or flooring, buy used goods or, failing that, wood certified to have been sustainably harvested. The Amazon and other forests are not just the lungs of the earth, they may also be humanity's best short-term hope for limiting climate change.

Unplug —Believe it or not, U.S. citizens spend more money on electricity to power devices when off than when on. Televisions, stereo equipment, computers, battery chargers and a host of other gadgets and appliances consume more energy when seemingly switched off, so unplug them instead.

Purchasing energy-efficient gadgets can also save both energy and money—and thus prevent more greenhouse gas emissions. To take but one example, efficient battery chargers could save more than one billion kilowatt-hours of electricity—$100 million at today's electricity prices—and thus prevent the release of more than one million metric tons of greenhouse gases.

Swapping old incandescent lightbulbs for more efficient replacements, such as compact fluorescents (warning: these lightbulbs contain mercury and must be properly disposed of at the end of their long life), would save billions of kilowatt-hours. In fact, according to the EPA, replacing just one incandescent lightbulb in every American home would save enough energy to provide electricity to three million American homes.

One Child —There are at least 6.6 billion people living today, a number that is predicted by the United Nations to grow to at least nine billion by mid-century. The U.N. Environmental Program estimates that it requires 54 acres to sustain an average human being today—food, clothing and other resources extracted from the planet. Continuing such population growth seems unsustainable.

Falling birth rates in some developed and developing countries (a significant portion of which are due to government-imposed limits on the number of children a couple can have) have begun to reduce or reverse the population explosion. It remains unclear how many people the planet can comfortably sustain, but it is clear that per capita energy consumption must go down if climate change is to be controlled.

Ultimately, a one child per couple rule is not sustainable either and there is no perfect number for human population. But it is clear that more humans means more greenhouse gas emissions.

Future Fuels —Replacing fossil fuels may prove the great challenge of the 21st century. Many contenders exist, ranging from ethanol derived from crops to hydrogen electrolyzed out of water, but all of them have some drawbacks, too, and none are immediately available at the scale needed.

Biofuels can have a host of negative impacts, from driving up food prices to sucking up more energy than they produce. Hydrogen must be created, requiring either reforming natural gas or electricity to crack water molecules. Biodiesel hybrid electric vehicles (that can plug into the grid overnight) may offer the best transportation solution in the short term, given the energy density of diesel and the carbon neutral ramifications of fuel from plants as well as the emissions of electric engines. A recent study found that the present amount of electricity generation in the U.S. could provide enough energy for the country's entire fleet of automobiles to switch to plug-in hybrids , reducing greenhouse gas emissions in the process.

But plug-in hybrids would still rely on electricity, now predominantly generated by burning dirty coal. Massive investment in low-emission energy generation, whether solar-thermal power or nuclear fission , would be required to radically reduce greenhouse gas emissions. And even more speculative energy sources—hyperefficient photovoltaic cells, solar energy stations in orbit or even fusion—may ultimately be required.

The solutions above offer the outline of a plan to personally avoid contributing to global warming. But should such individual and national efforts fail, there is another, potentially desperate solution:

Experiment Earth —Climate change represents humanity's first planetwide experiment. But, if all else fails, it may not be the last. So-called geoengineering , radical interventions to either block sunlight or reduce greenhouse gases, is a potential last resort for addressing the challenge of climate change.

Among the ideas: releasing sulfate particles in the air to mimic the cooling effects of a massive volcanic eruption; placing millions of small mirrors or lenses in space to deflect sunlight; covering portions of the planet with reflective films to bounce sunlight back into space; fertilizing the oceans with iron or other nutrients to enable plankton to absorb more carbon; and increasing cloud cover or the reflectivity of clouds that already form.

All may have unintended consequences, making the solution worse than the original problem. But it is clear that at least some form of geoengineering will likely be required: capturing carbon dioxide before it is released and storing it in some fashion, either deep beneath the earth, at the bottom of the ocean or in carbonate minerals. Such carbon capture and storage is critical to any serious effort to combat climate change.

Additional reporting by Larry Greenemeier and Nikhil Swaminathan .

Climate Change – Problems and Solutions Essay

Natural causes of climate change, man-made causes of climate change, the potential impact of global warming, the current impact of global warming, possible solutions to global warming, current implication of global warming solutions.

Global warming is an increasing concern in the world caused by the excessive release of greenhouse gases. It is causing a devastating impact on the environment and affecting the quality of life. Natural causes are difficult to control since they are sometimes beyond human capabilities. However, effort should be made to manage certain situations such as forest fires by responding effectively to put them off. Moreover, human activities can influence natural disasters particularly when they interfere with natural processes. Flooding may occur because of activities such as agricultural activities, urban development, deforestation, hydroelectric power, and the destruction of wetlands. Inappropriate mining can create permanent landscape modifications such as drying up of oceans while building dams can trigger earthquakes.

Humans have played a great role in climate change particularly global warming because of engaging in activities that affect the environment. Failure to prioritize environmental issues and not being concerned about the impact of human activities on the environment has continued degrading natural resources. Effective regulations should be established to hinder activities that cause the generation of carbon dioxide and other greenhouse gases. The time has come when every nation should start prioritizing environmental issues more than other factors such as economic and social.

Global warming is likely to cause a severer impact if sufficient measures are not taken to address the problem. The potential impact could affect the quality of life in a great way and cause more suffering to humans. Increasing deserts would affect the availability of food and water resulting in the development of new diseases and hunger. The potential impact could be the reduction of human and animal population, as the world becomes a harsh environment. Drying up sources of water and flooding the other areas would kill many animals and interfere with important activities such as mating.

Global warming is causing devastating effects, and worsening many disasters such as droughts, storms, and heatwaves. The warmer climate tends to retain, collect and then drop more water influencing the weather patterns to change where dry areas become drier and wet areas wetter (Price et al., 2020). The problem increases stress on the ecosystem following water shortages, pest and weed invasions, and salt invasions.

The rising cases of drought following the shortage of rainfall are threatening the lives of many people living in those regions. Extended dry seasons affect the availability of food to both humans and animals. On the other hand, rising sea levels along the coast have displaced people forcing them to move to higher regions. This is increasing pressure for resources as people move to settle in other areas. Moreover, some parts of the world such as the Midwest are experiencing extreme hot events and temperatures are likely to worsen unless sufficient measures are taken to address the problem. Extreme temperature increases health risks and influences the development of new ailments that were not common in the past.

Everybody has a role to place in the elimination of the global warming problem in the world. It is important to avoid cutting trees and reduce the utilization of energy to protect the environment. Small energy-saving practices such as unplugging gadgets, switching off lights, and using public transport can have a great impact on the reduction of global warming.

The current solutions focusing on the reduction of global warming have brought many beneficial changes and remedies. Many organizations have been developed to enhance innovation and technology in the innovation of eco-friendly machines. For instance, there has been increased investment in solar and wind energy in an attempt to reduce the use of fossil fuels. Many states have launched campaigns to educate the public on the importance of environmental conservation to create a favorable environment for future generations. People have started changing their behaviors and actions to reduce their carbon footprint.

Kweku, D., Bismark, O., Maxwell, A., Desmond, K., Danso, K., Oti-Mensah, E., Quachie, A., & Adormaa, B. (2018). Greenhouse effect: Greenhouse gases and their impact on global warming. Journal of Scientific Research and Reports, 17(6), 1-9. Web.

Price, M., Rowntree, L., Lewis, M., Wyckoff, W. (2020). Globalization and diversity (6th ed.). Pearson.

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1. IvyPanda . "Climate Change – Problems and Solutions." October 30, 2023. https://ivypanda.com/essays/climate-change-problems-and-solutions/.

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IvyPanda . "Climate Change – Problems and Solutions." October 30, 2023. https://ivypanda.com/essays/climate-change-problems-and-solutions/.

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What are the solutions to climate change?

Climate change is already an urgent threat to millions of lives – but there are solutions. From changing how we get our energy to limiting deforestation, here are some of the key solutions to climate change.

Climate change is happening now, and it’s the most serious threat to life on our planet. Luckily, there are plenty of solutions to climate change and they are well-understood.

In 2015, world leaders signed a major treaty called the Paris agreement  to put these solutions into practice.

Core to all climate change solutions is reducing greenhouse gas emissions , which must get to zero as soon as possible.

Because both forests and oceans play vitally important roles in regulating our climate, increasing the natural ability of forests and oceans to absorb carbon dioxide can also help stop global warming.

The main ways to stop climate change are to pressure government and business to:

• Keep fossil fuels in the ground . Fossil fuels include coal, oil and gas – and the more that are extracted and burned, the worse climate change will get. All countries need to move their economies away from fossil fuels as soon as possible.
• Invest in renewable energy . Changing our main energy sources to clean and renewable energy is the best way to stop using fossil fuels. These include technologies like solar, wind, wave, tidal and geothermal power.
• Switch to sustainable transport . Petrol and diesel vehicles, planes and ships use fossil fuels. Reducing car use, switching to electric vehicles and minimising plane travel will not only help stop climate change, it will reduce air pollution too.
• Help us keep our homes cosy . Homes shouldn’t be draughty and cold – it’s a waste of money, and miserable in the winter. The government can help households heat our homes in a green way – such as by insulating walls and roofs and switching away from oil or gas boilers to heat pumps .
• Improve farming and encourage vegan diets . One of the best ways for individuals to help stop climate change is by reducing their meat and dairy consumption, or by going fully vegan. Businesses and food retailers can improve farming practices and provide more plant-based products to help people make the shift.
• Restore nature to absorb more carbon . The natural world is very good at cleaning up our emissions, but we need to look after it. Planting trees in the right places or giving land back to nature through ‘rewilding’ schemes is a good place to start. This is because photosynthesising plants draw down carbon dioxide as they grow, locking it away in soils.
• Protect forests like the Amazon . Forests are crucial in the fight against climate change, and protecting them is an important climate solution. Cutting down forests on an industrial scale destroys giant trees which could be sucking up huge amounts of carbon. Yet companies destroy forests to make way for animal farming, soya or palm oil plantations. Governments can stop them by making better laws.
• Protect the oceans . Oceans also absorb large amounts of carbon dioxide from the atmosphere, which helps to keep our climate stable. But many are overfished , used for oil and gas drilling or threatened by deep sea mining. Protecting oceans and the life in them is ultimately a way to protect ourselves from climate change.
• Reduce how much people consume . Our transport, fashion, food and other lifestyle choices all have different impacts on the climate. This is often by design – fashion and technology companies, for example, will release far more products than are realistically needed. But while reducing consumption of these products might be hard, it’s most certainly worth it. Reducing overall consumption in more wealthy countries can help put less strain on the planet.
• Reduce plastic . Plastic is made from oil, and the process of extracting, refining and turning oil into plastic (or even polyester, for clothing) is surprisingly carbon-intense . It doesn’t break down quickly in nature so a lot of plastic is burned, which contributes to emissions. Demand for plastic is rising so quickly that creating and disposing of plastics will account for 17% of the global carbon budget by 2050 (this is the emissions count we need to stay within according to the Paris agreement ).

It’s easy to feel overwhelmed, and to feel that climate change is too big to solve. But we already have the answers, now it’s a question of making them happen. To work, all of these solutions need strong international cooperation between governments and businesses, including the most polluting sectors.

Individuals can also play a part by making better choices about where they get their energy, how they travel, and what food they eat. But the best way for anyone to help stop climate change is to take collective action. This means pressuring governments and corporations to change their policies and business practices.

Governments want to be re-elected. And businesses can’t survive without customers. Demanding action from them is a powerful way to make change happen.

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The fossil fuel industry is blocking climate change action

Major oil and gas companies including BP, Exxon and Shell have spent hundreds of millions of pounds trying to delay or stop government policies that would have helped tackle the climate crisis.

Despite the effects of climate change becoming more and more obvious, big polluting corporations – the ones responsible for the majority of carbon emissions – continue to carry on drilling for and burning fossil fuels.

Industries including banks, car and energy companies also make profits from fossil fuels. These industries are knowingly putting money over the future of our planet and the safety of its people.

What are world leaders doing to stop climate change?

With such a huge crisis facing the entire planet, the international response should be swift and decisive. Yet progress by world governments has been achingly slow. Many commitments to reduce carbon emissions have been set, but few are binding and targets are often missed.

In Paris in 2015, world leaders from 197 countries pledged to put people first and reduce their countries’ greenhouse gas emissions. The Paris agreement has the aim of limiting global warming to well below 2ºC and ideally to 1.5°C.

If governments act swiftly on the promises they made in the Paris climate agreement, and implement the solutions now, there’s still hope of avoiding the worst consequences of climate change .

World leaders and climate negotiators meet at annual COPs – which stands for Conference of the Parties (the countries that signed the United Nations Framework Convention on Climate Change, or UNFCCC).

At COPs and other climate talks, nations take stock of their ability to meet their commitments to reduce emissions.

Recently, talks have focused on climate finance – money to help poorer countries adapt to climate change and reduce emissions. Rich countries have pledged $100 billion in annual funding to help developing countries reduce emissions and manage the impacts of climate change. This is yet to materialise, and much more money is needed.

As the impacts of climate change are increasing, important talks have also started on “loss and damage” funding. This is money needed by worst-impacted countries to deal with extreme weather and other climate change impacts.

Global climate change activism

Around the world, millions of us are taking steps to defend our climate. People of all ages and from all walks of life are desperately demanding solutions to the climate emergency.

Over the years, Greenpeace has challenged oil companies chasing new fossil fuels to extract and burn. We’ve also called out the governments for their failure to act fast enough on the climate emergency. Greenpeace activists are ordinary people taking extraordinary action, to push the solutions to climate change.

Indigenous Peoples are most severely affected by both the causes and effects of climate change . They are often on the front lines, facing down deforestation or kicking out fossil fuel industries polluting their water supplies.

Communities in the Pacific Islands are facing sea level rises and more extreme weather. But they are using their strength and resilience to demand world leaders take quicker climate action.

For many of these communities, the fight against climate change is a fight for life itself.

Even in the UK, climate change is impacting people more severely. As a country with the wealth and power to really tackle climate change, it’s never been more important to demand action.

Keep exploring

What can I do to stop climate change?

Individuals can make changes to their lives to reduce their personal carbon footprint. But it’s more important to persuade decision-makers in governments and businesses to drive emissions reductions on a much larger scale. This is the best way to stop climate change getting worse.

What is the UK doing about climate change?

All countries need to reduce their greenhouse gas emissions that contribute to global warming. So how’s the UK doing?

Renewable energy: a beginner's guide

Clean renewable energy is a vital tool for tackling climate change. Discover how it works and understand the advantages of wind, solar and water power.

Environmental justice, explained

The environmental crisis doesn't affect everyone equally. Often the worst impacts fall on those who are already most exploited by people in power. The fight for environmental justice is about addressing this unfairness, and making sure green solutions don't add to the problem.

A sunset lights a glacier in New Zealand's Fiordland National Park. Around the world, many glaciers are melting quickly as the planet warms.

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Are there real ways to fight climate change? Yes.

Humans have the solutions to fight a global environmental crisis. Do we have the will?

The evidence that humans are causing climate change, with drastic consequences for life on the planet, is overwhelming .

Experts began raising the alarm about global warming in 1979 , a change now referred to under the broader term climate change , preferred by scientists to describe the complex shifts now affecting our planet’s weather and climate systems. Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and habitats, rising seas , and a range of other impacts.  

Over 200 countries—193 countries plus the 27 members of the European Union—have signed the Paris Climate Agreement , a treaty created in 2015 to fight climate change on a global scale. The Intergovernmental Panel on Climate Change (IPCC), which synthesizes the scientific consensus on the issue, has set a goal of keeping warming under 2°C (3.6°F) and pursuing an even lower warming cap of 1.5 °C (2.7° F).

But no country has created policies that will keep the world below 1.5 °C, according to the Climate Action Tracker . Current emissions have the world on track to warm 2.8°C by the end of this century.  

Addressing climate change will require many solutions —there's no magic bullet. Yet nearly all of these solutions exist today. They range from worldwide changes to where we source our electricity to protecting forests from deforestation.  

The promise of new technology

Better technology will help reduce emissions from activities like manufacturing and driving.  

Scientists are working on ways to sustainably produce hydrogen, most of which is currently derived from natural gas, to feed zero-emission fuel cells for transportation and electricity.  

Renewable energy is growing, and in the U.S., a combination of wind, solar, geothermal, and other renewable sources provide 20 percen t of the nation’s electricity.  

New technological developments promise to build better batteries to store that renewable energy, engineer a smarter electric grid, and capture carbon dioxide from power plants and store it underground or turn it into valuable products such as gasoline . Some argue that nuclear power—despite concerns over safety, water use, and toxic waste—should also be part of the solution, because nuclear plants don't contribute any direct air pollution while operating.

Should we turn to geoengineering?

While halting new greenhouse gas emissions is critical, scientists say we need to extract existing carbon dioxide from the atmosphere, effectively sucking it out of the sky.  

Pulling carbon out of the atmosphere is a type of geoengineering , a science that interferes with the Earth’s natural systems, and it’s a controversial approach to fighting climate change.

Other types of geoengineering involve spraying sunlight-reflecting aerosols into the air or blocking the sun with a giant space mirror. Studies suggest we don’t know enough about the potential dangers of geoengineering to deploy it.

Restoring nature to protect the planet  

Planting trees, restoring seagrasses, and boosting the use of agricultural cover crops could help clean up significant amounts of carbon dioxide .  

The Amazon rainforest is an important reservoir of the Earth’s carbon, but a study published in 2021, showed deforestation was transforming this reservoir into a source of pollution.  

Restoring and protecting nature may provide as much as   37 percent of the climate mitigation needed to reach the Paris Agreement’s 203o targets. Protecting these ecosystems can also benefit biodiversity, providing a win-win for nature .

Adapt—or else

Communities around the world are already recognizing that adaptation must also be part of the response to climate change . From flood-prone coastal towns to regions facing increased droughts and fires, a new wave of initiatives focuses on boosting resilience . Those include managing or preventing land erosion, building microgrids and other energy systems built to withstand disruptions, and designing buildings with rising sea levels in mind.

Last year, the Inflation Reduction Act was signed into law and was a historic investment in fighting and adapting to climate change.

( Read more about how the bill will dramatically reduce emissions. )

Recent books such as Drawdown and Designing Climate Solutions have proposed bold yet simple plans for reversing our current course. The ideas vary, but the message is consistent: We already have many of the tools needed to address climate change. Some of the concepts are broad ones that governments and businesses must implement, but many other ideas involve changes that anyone can make— eating less   meat , for example, or rethinking your modes of transport .

"We have the technology today to rapidly move to a clean energy system," write the authors of Designing Climate Solutions . "And the price of that future, without counting environmental benefits, is about the same as that of a carbon-intensive future."

Sarah Gibbens contributed reporting to this article.

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What can we do to slow or stop global warming?

There is no one-size-fits-all approach to stopping or slowing global warming, and each individual, business, municipal, state, tribal, and federal entity must weigh their options in light of their own unique set of circumstances.  Experts say  it is likely many strategies working together will be needed. Generally speaking, here are some examples of mitigation strategies we can use to slow or stop the human-caused global warming ( learn more ):

• Where possible, we can switch to renewable sources of energy (such as solar and wind energy) to power our homes and buildings, thus emitting far less heat-trapping gases into the atmosphere.
• Where feasible, we can drive electric vehicles instead of those that burn fossil fuels; or we can use mass transit instead of driving our own cars.
• Where affordable, we can conserve energy by better insulating our homes and buildings, and by replacing old, failing appliances with more energy-efficient models.
• Where practicable, we can counterbalance our annual carbon dioxide emissions by investing in commercial services that draw down an equal amount of carbon out of the atmosphere, such as through planting trees or  carbon capture and storage  techniques.
• Where practical, we can support more local businesses that use and promote sustainable, climate-smart practices such as those listed above.
• We can consider placing an upper limit on the amount of carbon dioxide we will allow ourselves to emit into the atmosphere within a given timeframe.

Note that NOAA doesn’t advocate for or against particular climate policies. Instead, NOAA’s role is to provide data and scientific information about climate, including how it has changed and is likely to change in the future depending on different climate policies or actions society may or may not take. More guidance on courses of action can be found in the National Academy of Sciences' 2010 report, titled  Informing an Effective Response to Climate Change . Also learn more  here,   here,  and  here .

Thanks to low friction between train wheels and tracks, and level train tracks with gradual turns, trains have high energy efficiency. Photo from National Park Service Amtrak Trails and Rails .

Stabilizing global temperature near its current level requires eliminating all emissions of heat-trapping gases or, equivalently, achieving a carbon-neutral society in which people remove as much carbon from the atmosphere as they emit. Achieving this goal will require substantial societal changes in energy technologies and infrastructure that go beyond the collective actions of individuals and households to reduce emissions.

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Climate solutions: When climate action means better roads

In development, climate solutions build the tools that help countries adapt to climate change, including extreme weather events that can damage existing infrastructure

• Part of the series "Climate Solutions (Essays)"
• 22 October 2019

>> “ Climate Solutions ” is also available as a podcast and an e-book .

By Diego Ferrer, Birgitte Keulen and Meryn Martens

To those of us in the developed world, climate action means switching to electric vehicles, taking a bike or public transport. By contrast, in the developing world, climate action also requires better roads.

That’s not because we want people in the developing world to drive more fossil-fuel cars. It’s to protect them against the disastrous human and economic effects of climate change that occur when roads are flooded, covered by landslides or interrupted by unusable bridges. This is an important element in the battle against climate change and it requires major contributions from multilateral development banks like the European Investment Bank and supranational bodies like the European Union.

This “ adaptation ” to climate change is an important component of the European approach to climate action, making sure infrastructure and people are better prepared to cope with extreme weather and protected from its consequences. The European Investment Bank, which is expanding its adaptation work with the support of the European Commission, has built substantial climate expertise on innovative European projects. Ally that with its extensive financial resources and it can have a real impact in the world’s poorest countries.

Rising sea levels and the increased intensity of storms already affect many areas, particularly in developing countries, including small island states.

Even if the world succeeds in keeping temperature rises below the target of 2 degrees Celsius set out under the Paris Agreement, the climate has already changed enough to put many countries and regions at greater risk from extreme weather events. Rising sea levels and the increased intensity of storms already affect many areas, particularly in developing countries, including small island states.

In this context, adaptation has a very clear economic and human angle . When a road has been washed away by a storm, there is an obvious economic cost in lost trade, because the road is impassable to commercial trucks. However, the road is also impassable to workers or visitors, as well as to emergency services dealing with the effects of the storm. In the longer-term, children can’t get to school and patients can’t schedule regular hospital treatments.

What is climate adaptation?

Climate adaptation moderates harm or finds beneficial opportunities that result from changes in natural or human systems caused by actual or expected climatic stimuli or their effects

In developing countries, design standards and maintenance provisions are sometimes lower due to budget constraints and are not always based on recent extreme weather predictions.

Three development climate solutions

Why are developing countries so vulnerable? It’s to do with the way they build their roads.

Roads are built to last from 20 to 50 years and to withstand extreme weather events that occur only once in 50 to 100 years. Climate change means that these events will become more severe. In developing countries, design standards and maintenance provisions are sometimes lower due to budget constraints and are not always based on recent extreme weather predictions. At the same time, existing infrastructure may degrade faster due to harsh weather conditions, resulting in the need for earlier upgrade and replacement.

Three recent projects approved by the European Investment Bank show the scope of its adaptation work.

In December 2018, the EU bank signed a €20 million loan to the Lao People’s Democratic Republic. In concert with a €5 million grant from the EU’s Asia Investment Facility signed in April, this will ensure that 1 400 km of vulnerable rural roads across six Laotian provinces are protected against the effects of the country’s increasingly long and dramatic rainy season.

The project improves and reinforces roads so the 1.6 million Lao in those provinces can stay connected to vital economic and social networks.

The European Investment Bank works in close cooperation with the EU External Action Service, the European Commission and the EU delegation to the Lao People’s Democratic Republic on the ground, as well as with other development banks. It builds resilient roads, and together with other multilateral development banks it ensures that besides actual project implementation capacity building is also taking place to build the long-term sustainability of its investments in developing countries.

The EU bank’s development adaptation work often includes technical assistance and project advice that helps local engineers adapt to an uncertain future climate. For example, the European Investment Bank is advising on a project to build a coastal defence system for the capital of São Tomé. Its contribution requires a lot of time, funding and coordination. But it will result in climate-adapted infrastructure that will be hugely beneficial to our partner countries in the long term.

What is capacity building?

Capacity building is the process by which skills, experience and technical and management capabilities are developed. These elements might be developed within a range of organisations, including contractors, consultants or agencies. Capacity building is often the result of the provision of technical assistance, training and specialist inputs.

A bridge to development

Similarly the European Investment Bank has also approved infrastructure projects in Haiti and the Dominican Republic after natural disasters struck there.

In Haiti, the European Investment Bank approved a €25 million loan to Haiti in April 2019 to build bridges and rebuild bridges destroyed by Hurricane Matthew. The bridges are needed as evacuation routes during storms—increasingly frequent, due to climate change—as well as providing economic links for people who presently are cut off during rain storms. The bridges will be financed through the European Investment Bank loan and supported by help on the ground and grants from the Inter-American Development Bank and the Caribbean Investment Facility, a regional blending facility of the European Union.

Across the border in the Dominican Republic, a similar post-disaster reconstruction project will include social housing, waterworks to prevent flooding, and of course rural roads that are more resilient. This will be financed through an EIB loan and a grant from the Caribbean Investment Facility.

Development climate adaptation for future extremes

These experiences help us lay important foundations for development. Our methodology for assessing adaptation investment—developed in coordination with other multilaterals—brings rigour to the planning of infrastructure work that will increase the impact of the investment and make it last longer. As well as helping to repair infrastructure that has been damaged, the European Investment Bank also ensures that the quality of the rehabilitated roads or bridges are of a higher standard and thus better able to withstand future extreme weather events.

This is as important for transport projects that are aimed at cutting greenhouse gas emissions, such as our major investments in the Lucknow and Cairo metros, as it is vital in adaptation projects, such as the loan for roads in Laos.

That also means partnership. We already mentioned the Haiti bridge project that is implemented in collaboration with the Inter-American Development Bank. The European Investment Bank also joined with the Asian Development Bank  to finance the Vientiane Urban Transport project to introduce a bus rapid transit system in the capital of Laos and substantially increase the quality of life in the city. The Bank is also examining other areas of infrastructure cooperation with the Asian Development Bank and the World Bank, in line with overall EU policies to reduce poverty according to the agenda 2030 and the socio-economic development plan of Laos.

Bespoke urban climate adaptation

Rural roads are not the only aspect of mobility and development in which adaptation is of increasing significance. The city is the nexus of one of the greatest climate challenges facing international institutions. Climate change runs on a parallel track to the massive increase in urban population forecast for the coming decades. By 2030, the UN predicts that 68% of the world’s population will live in cities, compared to 55% now. Much of this growth will come in developing countries and is linked to broader demographic trends. Some African and Asian countries are expected to double their populations by 2050, according to the UN, and most of that growth will be in cities.

Urban transport solutions are different from those for interurban mobility. Cities in Asia, the US and the EU require bespoke solutions, because of different density characteristics. (Think of Tokyo and then think of Los Angeles. One size does not fit all.)

We need to keep working on these solutions and to increase the resources we devote to them. That’s why the European Investment Bank should get the financing it needs for its activities outside the EU. It is also why we are planning to set up a subsidiary devoted to development work.

In cooperation with other European institutions, we will build on our current expertise to expand our future impact.

Climate solutions in transport if you’re a…

• adaptation policies that make our infrastructure more resilient to climate change
• mitigation policies that help to avoid or reduce travel related greenhouse gas emmissions, such as teleworking, good public transport, cycling and walking infrastructure and electric cars
• policies that help develop and scale-up technologies that fit with a decarbonised future.
• Citizens: As a citizen, you cannot adapt the infrastructure, but you can live closer to your work. Consider whether you need to take that long trip. Take public transport, a bike or go by foot and switch to an electric vehicle.
• Financial institutions: Invest in the solutions that help climate adaptation and mitigation.

Diego Ferrer is a lead economist for strategic roads at the European Investment Bank. Birgitte Keulen is senior engineer for regional transport programmes, and Meryn Martens is lead engineer for urban mobility.

You may like...

Get used to it.

Even if we invest in innovative climate action, the impact of global warming will still be severe. Developing countries climate adaptation projects are crucial to help people and places adapt to climate change impacts

When climate action means better roads

Hear how developing countries are working to protect their economies—and their people—from climate change in our climate podcast development episode

Delivering on adaptation

Even as we try to control global warming, we must ensure that people can live safely with its consequences. Adaptation projects are crucial. Here’s how to bring vital finance to the sector with multilateral development banks leading the way

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Climate Explained: Introductory Essays About Climate Change Topics

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Climate Explained, a part of Yale Climate Connections, is an essay collection that addresses an array of climate change questions and topics, including why it’s cold outside if global warming is real, how we know that humans are responsible for global warming, and the relationship between climate change and national security.

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NPR's Climate Week: A Search For Solutions

Climate solutions are necessary. so we're dedicating a week to highlight them.

Julia Simon

Wind turbines are seen in Big Spring, Texas. Humans are driving global warming; that means humans can find solutions to change our trajectory. Brandon Bell/Getty Images hide caption

Climate change is here. And this week, NPR is doing something new. We're dedicating an entire week to focus on the search for climate solutions, with stories across our network.

Why we're focusing on climate solutions

We've just emerged from a brutal summer. Heat waves across the U.S. and the world. Fires across Canada . In Maui, the deadliest wildfire in the U.S. in a century. Hurricanes. Melting polar ice. Ocean heat waves killing coral . When I talk with people about climate change, I often hear hopelessness. Like we've already lost. People just throw up their hands. What do you say to that?

I'm Julia Simon, NPR's climate solutions reporter. I know that things are bad right now. But what if we reframe the conversation? With climate change, it's not like this is a meteor hurtling toward Earth and there's nothing we can do about it.

Climate solutions do exist. These 6 experts detail what they look like

Humans are driving global warming. And that means we humans can find solutions to change our trajectory. We already have many solutions.

Now is not the time to back away from the challenge. Robert Bullard, professor of urban planning and environmental policy at Texas Southern University, equates this moment to when the U.S. faced past injustices, like slavery.

"I push back against any individuals or organizations that will say, 'Well, we can't do anything about this challenge.' We can do something about it. But it would mean that we have to make up our minds that this is a challenge that we must address on a societal basis and on a global basis," he says. "We should not and cannot accept climate change as the norm."

How we define climate solutions

Broadly speaking, climate solutions are things that reduce greenhouse gases — like solar and wind energy combined with batteries. Energy efficiency. Land use is key too, like reducing deforestation. Individuals can play a role also — for example, eating less meat.

But we have to remind folks that solutions are not all on individuals. A lot of solutions come down to companies and governments.

For example, last year President Biden signed the Inflation Reduction Act — the most significant piece of climate policy in U.S. history .

Governments can set the agenda for climate policy. We saw this in Brazil; the current president, Luiz Inácio Lula da Silva, is cracking down on deforestation in the Amazon . Under his predecessor, Jair Bolsonaro, Brazil's deforestation was surging. So some advocates see voting as a powerful climate solution.

Trees and other plants help keep cities cooler. In New York City, scientists are working to understand how to maximize the benefits of urban green spaces. Here, residents gather in Brooklyn Bridge Park on a hot summer night. Ryan Kellman/NPR hide caption

Adapting to our warming planet is also a climate solution

We will need to rebuild infrastructure for rising sea levels and new rainfall patterns. Adapting to climate change doesn't mean we're giving up — adaptation is a necessary part of reducing the harms of climate change. Also, planting trees in warming cities provides shade and cools us down. And trees store planet-heating carbon dioxide.

There's a word — "co-benefits." Ways that curbing greenhouse gases might make life better too. If we replace coal- and gas-fired power plants with renewables, we reduce greenhouse gases that warm our planet. But we also end up reducing other kinds of air pollution and make cities better for our lungs. Disadvantaged communities bear the brunt of pollution, so reducing fossil fuels would help communities of color.

Seaweed is mucking up beaches. This robot could stop it — and fight climate change

There's an equity component to climate solutions.

Climate solutions should not be repeating inequities and injustices of the past. As we make more batteries and electric vehicles, for example, how do we ensure that mining for the key metals in those technologies is done ethically? How do we avoid mining that pollutes water or grabbing land from Indigenous communities?

And we have to remember that some individuals and companies are more responsible for climate change than others. So how do we hold them accountable? This summer in Montana, 16 young plaintiffs won a climate lawsuit arguing against the state's development of fossil fuels. Last month, California filed suit against several of the world's biggest oil companies. These cases could have major implications across the United States. Accountability can be a climate solution too.

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Ten solutions to climate change that will actually make a difference

Jun 20, 2022

At this point we need solutions bigger than any one person. But that doesn’t tell the whole story.

There are a lot of differing opinions on whether it's too late to climate change — and, if it's not the best way of going about it. Some say recycling is useless and that individual action means nothing against the larger policy reforms that need to happen. This is, in part, true — although you should absolutely still be recycling. But it doesn’t tell the whole story, and it doesn’t help those who are currently on the frontlines of the climate crisis. Here, we break down 10 solutions to climate change that will actually make a difference — and how you can help make them all a reality.

Stand with the people most affected by climate change

1. shift to renewable energy sources in all key sectors.

The United Nations identified a six-sector solution to climate change, focusing on actions that can be taken by the energy, industry, agriculture, transportation, nature-based solutions, and urban planning. If all of these actions are completed, the UN Environment Programme estimates we could reduce global carbon emissions by 29 to 32 gigatonnes, thereby limiting the global temperature rise to 1.5º C.

One key element of this plan is shifting to renewable energy sources, both at home and at work. “We have the necessary technology to make this reduction by shifting to renewable energy and using less energy,” the UNEP writes of our personal energy consumption (generally, fossil fuels power our homes, keeping the lights on, our rooms warm, and Netflix streaming). But the energy usage of the industrial sector also plays a key role: Addressing issues like methane leaks and switching at large scale to passive or renewable energy-based heating and cooling systems could reduce industrial carbon emissions by 7.3 gigatonnes every year.

2. Reduce food loss and waste and shift to more sustainable diets

There are a few different ways that climate change and hunger go hand-in-hand. Whether it’s kale or Kobe beef, producing food accounts for some measure of greenhouse gasses. In 2021, the Food and Agriculture Organization estimated we consumed more meat than ever before . By 2050 this will, by some estimates, increase greenhouse gas emissions from food production by 60%. Likewise, many farmers use nitrous-based fertilizers to grow more crops, more quickly to meet demand.

It’s important to reduce food waste at every step of the food system . For us as consumers, we can commit to eating what we buy and composting what we don’t get to in time. We can also switch our focus to plant-based and other sustainable diets, supporting farms that use organic fertilizers and making beef and other meat products the exception rather than the rule at the dinner table.

3. Halt deforestation and commit to rebuilding damaged ecosystems

The rapid deforestation of the Earth, especially over the last 60 years, has contributed to climate change, creating “heat islands” out of land that would normally be protected by trees and other flora from overheating. Simply put, this has to stop. There are actions each of us can take as individuals to help halt this—going paperless and buying recycled paper products, planting trees or supporting organizations that do this (like Concern ), and recycling.

But change has to happen at a larger scale here. Illegal logging happens both in the United States and abroad. Last year, world leaders committed to halting this and other harmful practices by 2030 as part of COP26. You can help by holding your own elected leaders to account.

4. Embrace electric vehicles, public transport, and other non-motorized options for getting around

The carbon savings on junking your current car in favor of an electric model are basically nullified if you aren’t seriously in the market for a new vehicle. However, mass adoption of electric vehicles and public transport — along with walking, biking, skating, and scooting — is key to cutting the greenhouse gas emissions from fuel-based motor vehicles.

This is another issue you can raise with elected officials. Earlier this year, for example, you may remember hearing that President Biden had been encouraging the US Postal System to adopt electric vans as part of its new fleet. This didn’t come to pass , but it’s changes like these — changes beyond any one person’s transportation method — that need to happen. You can call on your representatives to support these switchovers for delivery vehicles, cab and taxi fleets, ambulances, and other auto-centric services. Or, if your city or town lacks decent public transportation or enough bike lanes or sidewalks to make those alternatives to driving, lobby for those.

5. Subsidize low-carbon alternatives for urban planning

In tandem with low-carbon alternatives for public transportation, governments need to commit to similar measures with our growing cities. New buildings mean a new opportunity to reward green design methods that help to decrease the strain on urban resources, whether they’re apartments or entertainment venues. (Fun fact: The Stavros Niarchos Cultural Center in Athens runs almost entirely off of solar panels during the bright and sunny summer months. ) In cities like New York, we’ve seen the toll that excessive power use can take through rolling blackouts and brown-outs, especially in the summer months. Changes to public infrastructure that reduce our reliance on the power grid will help to keep the system from becoming untenably overloaded.

6. Strengthen resilience and climate adaptation methods in MAPA communities

So far, we’ve looked at solutions to climate change that can take place within our own homes and communities. However, these only go so far to mitigate the damage that the climate crisis has already inflicted on a large portion of the world. The most affected people and areas (MAPAs) are largely in the Global South. Many are located in low-income countries without the resources or infrastructure to respond and adapt to climate disasters, even as they become more frequent and destructive.

Countries like the United States and organizations responding to the climate crisis must support MAPA communities, particularly the most vulnerable, in developing and carrying out strategies specific to context and designed to bolster resilience where it’s needed most. Often these communities know what needs to be done to mitigate the effects of climate change, and they simply need to be supported with access to additional research and meteorological data, new technologies, and funding.

What we talk about when we talk about resilience

The word “resilience” has taken on new meanings and contexts in recent years, but at Concern it still has a specific definition relating to our emergency and climate response. Here’s what we mean when we use it.

7. Address poverty and other inequalities that increase vulnerability

The tem MAPA can also apply to individuals within a community. Women, disabled people, children, the elderly, people living in poverty, indigenous peoples, and LGBTQIA+ people are among those who are most likely to be hit harder by climate change because of preexisting societal marginalization. This is why it’s critical that they also have a seat at the decision-making table when it comes to solutions to climate change within their own communities. Ending poverty and the other systemic inequalities that give some people greater access to resources than others will help to offset some of the greatest threats posed by the climate crisis.

8. Invest in disaster risk reduction (DRR)

Disaster Risk Reduction (otherwise known as DRR) protects the lives and livelihoods of communities and individuals who are most vulnerable to disasters or emergencies. Whether the crisis is caused by nature or humans (or a combination of both), DRR limits its negative impact on those who stand to lose the most.

We can’t undo much of climate change’s impact so far, but we can help the communities who are hit hardest by these impacts to prepare for and respond to these emergencies once they strike.

9. Commit to fair financing and climate justice

Of course, DRR strategies and other resilience, adaptation, and mitigation practices cost money. Money that the countries most affected by climate change often lack. As part of a global commitment to climate justice , countries with the highest carbon footprints should be making restitution to those countries with lower footprints, countries that tend to be more vulnerable to global warming.

Countries like the United States must increase investments in disaster prevention and DRR strategies, such as early warning and response systems, forecast-based financing mechanisms, and adapted infrastructure. What’s more, these funds need to be made rapidly dispersible and flexible so that when emergency strikes, they can be accessed more quickly. Additional investment to prevent conflicts over the use of natural resources will also help countries facing both fragile political systems and a high risk for climate-related disasters.

Project Profile

Responding to Pakistan's Internally Displaced (RAPID)

RAPID is a funding program that allows Concern to quickly and efficiently deliver aid to people displaced by conflict or natural disaster.

10. Guarantee these changes in the long-term via policy reform

Few of the solutions listed above are not sustainable without policy reform. You can help by encouraging your elected officials to consider the above points, and to support bills that incorporate one or more of these solutions to climate change, many of which are currently being written and shared at the local and national levels.

Smart climate policy will prioritize people over corporations, consider the framework of climate justice — including land and water rights of indigenous peoples and rural communities, address the intersectional effects of climate change on hunger, poverty, and gender equality, and enforce regulatory frameworks and standards that commit people and institutions to honoring these new standards. Bold and aggressive action must be taken if we’re to reach the goal of not exceeding 1.5º C and mitigating the current effects of climate change by 2030. But it’s not a lost cause yet. It’s on all of us to now support those actions that are needed most.

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Perspectives

Natural Solutions to Climate Change

November 21, 2017

By Justin Adams, Executive Director, Tropical Forest Alliance

In response to climate change, land is key. Today, agriculture, forestry, and other land uses account for roughly a quarter of global greenhouse-gas emissions. But adopting sustainable land management strategies could provide more than one-third of the near-term emission reductions needed to keep warming well below the target—2°C above pre-industrial levels—set by the Paris climate agreement.

Conservation organizations like mine have long been working to balance the interaction between people and nature. But only recently have we fully grasped just how important land-use management is in addressing climate change. With the development of remote sensing, artificial intelligence, and biogeochemical modeling, we can better forecast outcomes, and develop strategies to manage and minimize adverse consequences.

Some of the most promising ways to mitigate climate change are what we call “natural climate solutions”: the conservation, restoration, and improved management of land, in order to increase carbon storage or avoid greenhouse-gas emissions in landscapes worldwide. The full potential of these solutions is detailed in a new study produced by my organization, the Nature Conservancy, and 15 other leading institutions.

Among the most important natural climate solutions is protecting “frontier forests”—pristine woodlands that serve as natural carbon sinks. Intact tropical and northern forests, as well as savannas and coastal ecosystems, store huge amounts of carbon accumulated over centuries. When these areas are disturbed, carbon is released. Preservation of frontier habitats also helps regulate water flows, reduces the risk of flooding, and maintains biodiversity.

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Reforestation is another important natural solution. Globally, an estimated  two billion hectares  (4.9 billion acres) of land has been  deforested or degraded . Because trees are the best carbon-capture-and-storage technology the world has, reversing these numbers would bring a significant reduction in global carbon levels. We  estimate  that the world could capture three gigatons of CO2 annually—equivalent to taking more than 600 million cars off the roads—simply by planting more trees.

A third category of natural solution is agricultural reform. From field to fork, the food sector is a major contributor to climate change through direct and indirect emissions, and by its often-negative effects on soil health and deforestation. Recognizing these risks, 23 global companies—including Nestlé, McDonald’s, Tesco, and Unilever—recently signed a commitment to halt deforestation in Brazil’s Cerrado savanna. The region, which covers a quarter of the country, has come under growing pressure from production of beef,  soy , and other commodities, together with the associated infrastructure.

As the Cerrado pledge demonstrates, when governments and businesses come together to address land-use challenges, the impact is potent. Natural climate solutions have the potential to reduce CO2 emissions by an estimated 11.3 billion tons a year – equal to a complete halt in burning oil, according to our study. 

One recent study  calculated that if Brazil reached zero deforestation by 2030, it would add 0.6% of GDP, or about $15 billion, to its economy. Communities also reap secondary benefits—such as rural regeneration, improved food and water security, and coastal resilience – when natural climate solutions are implemented.

Yet, despite the data supporting better land-use decision-making, something isn’t adding up. In 2016, the world witnessed a dramatic  51% increase in forest loss , equivalent to an area about the size of New Zealand. We need to buck this trend now, and help the world realize that land-use planning is not simply a conservation story.

Nature’s Make or Break for Climate Change

Research shows nature could provide one third of the emission reductions needed to tackle climate change.

READ ABOUT NATURE'S POTENTIAL

Some countries are moving in the right direction. The Indian government, for example, has set aside $6 billion  for states to invest in forest restoration. In Indonesia, the government created a dedicated agency to protect and restore peatlands, bogs, and swamp-like ecosystems that have immense CO 2 storage capabilities.

But they are the exceptions. Of the 160 countries that committed to implementing the Paris climate agreement, only 36 have specified land-use management in their emissions-reduction strategies.

Overcoming inertia will not be easy. Forests, farms, and coasts vary in size, type, and accessibility. Moreover, the lives of hundreds of millions of people are tied to these ecosystems, and projects that restore forest cover or improve soil health require focused planning, a massive undertaking for many governments.

One way to get things moving, especially in the agricultural sector, would be to remove or redirect subsidies that encourage excessive consumption of fertilizers, water, or energy in food production. As Indian government officials reminded their peers during a World Trade Organization meeting earlier this year, meaningful agricultural reforms can begin only when rich countries reduce the “ disproportionately large ” subsidies they give their own farmers.

Supporting innovation and entrepreneurship can also help power change. New processes and technologies in landscape planning, soil analysis, irrigation, and even alternative proteins such as plant-based meat are making agriculture and land use more sustainable. Similarly, changes in the construction industry, which is turning to more efficiently produced products like cross-laminated timber (CLT), can help reduce carbon pollution.

Finally, financing options for natural climate solutions must be dramatically increased. While payments to conserve forests are starting to flow under the UN’s REDD+ program , and the Green Climate Fund has committed $500 million for forest protection payments, total public investment in sustainable land use remains inadequate. According to the Climate Policy Initiative , public financing for agriculture, forestry, and land-use mitigation attracted just $3 billion in 2014, compared to $49 billion for renewable energy generation and $26 billion for energy efficiency.

At the UN climate change meeting that just concluded in Bonn, Germany, global leaders reaffirmed that the world cannot respond adequately to rising temperatures if governments continue ignoring how forests, farms , and coasts are managed. Now that there is a firm consensus, governments must act on it.

Originally Posted on  Project Syndicate December 22, 2017 View Original

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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

Introduction Example: Despite the global consensus on the urgent need to address climate change, the effectiveness of international agreements remains a contentious issue. This essay will argue that while such agreements have made significant strides in promoting global cooperation, they fall short in enforcing tangible changes due to lack of binding enforcement mechanisms. 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

Introduction Example: The transition from fossil fuels to renewable energy sources is often touted as a pivotal solution to climate change. This essay will compare and contrast these two energy sources, highlighting differences in environmental impact, cost-effectiveness, and long-term sustainability. 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

Introduction Example: Coral reefs, often referred to as the rainforests of the sea, are facing unprecedented threats from climate change. This essay aims to describe the profound impact of rising temperatures and ocean acidification on coral reef ecosystems. 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

Introduction Example: While the role of governments and corporations is often emphasized in the fight against climate change, individual actions play a crucial part in this global challenge. This essay will persuade readers that personal lifestyle choices can significantly impact efforts to mitigate 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

Introduction Example: Embarking on a journey towards sustainable living is both a personal challenge and a contribution to the global fight against climate change. This narrative essay will share my journey of adopting a more sustainable lifestyle, reflecting on the challenges, successes, and insights gained along the way. 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.

Engagement and Creativity

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.

Educational Value

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.

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Climate change refers to the long-term alteration of Earth's climate patterns, encompassing variations in temperature, precipitation, wind patterns, and other atmospheric conditions. It is primarily driven by natural processes but has been significantly accelerated by human activities, such as the emission of greenhouse gases from burning fossil fuels and deforestation.

Greta Thunberg is a prominent figure in the fight against climate change. As a Swedish environmental activist, she gained international attention for her efforts to raise awareness about the urgent need for climate action. Thunberg initiated the "Fridays for Future" movement, inspiring students worldwide to strike from school to demand government action on climate change. Dr. James Hansen, a renowned climate scientist, has made significant contributions to the field of climate research. He was one of the first scientists to warn about the dangers of human-induced global warming. Dr. Hansen's testimony before the U.S. Congress in 1988 played a crucial role in raising awareness about climate change and its potential consequences.

The historical context of climate change dates back centuries, with notable events highlighting the understanding and awareness of this global issue. One significant event is the Industrial Revolution, which began in the 18th century and marked a shift towards mass production and increased use of fossil fuels. This period of rapid industrialization contributed to the substantial release of greenhouse gases into the atmosphere, setting the stage for the ongoing climate crisis. In the late 19th century, scientists such as Svante Arrhenius started to explore the relationship between carbon dioxide levels and Earth's temperature. However, it was not until the mid-20th century that climate change gained significant attention. In 1958, the Keeling Curve measurements began, demonstrating the rising trend of atmospheric carbon dioxide levels. The 1980s witnessed a turning point with the establishment of the Intergovernmental Panel on Climate Change (IPCC) in 1988. This international body assesses scientific research on climate change and provides policymakers with valuable insights. Another notable event was the adoption of the United Nations Framework Convention on Climate Change (UNFCCC) in 1992, which laid the foundation for global cooperation on addressing climate change. Since then, several key events have shaped the discourse on climate change, including the Kyoto Protocol in 1997, and the Paris Agreement in 2015.

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. Deforestation: The clearing of forests for agriculture, logging, and urbanization reduces the Earth's capacity to absorb CO2, leading to higher greenhouse gas concentrations. 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. Changes in land and water management: Alterations in land and water use, such as dam construction, can impact natural systems and disrupt the carbon cycle. Natural factors: Natural processes like volcanic eruptions and variations in solar radiation can temporarily influence climate patterns.

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. 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. 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. Economic losses: Extreme weather events and disruptions to agricultural productivity can result in significant economic losses, impacting industries, livelihoods, and global supply chains. Food security challenges: Changes in temperature and precipitation patterns affect crop yields, leading to food shortages, increased food prices, and challenges in ensuring global food security. Displacement of populations: Rising sea levels and extreme weather events can lead to the displacement of communities and the loss of homes and livelihoods, resulting in climate-induced migration.

Transition to renewable energy: Shifting from fossil fuels to renewable energy sources such as solar, wind, and hydropower can significantly reduce greenhouse gas emissions and mitigate climate change. Energy efficiency: Improving energy efficiency in industries, transportation, and buildings can reduce energy consumption and lower greenhouse gas emissions. Sustainable transportation: Promoting electric vehicles, public transportation, and biking/walking infrastructure can reduce emissions from the transportation sector, a major contributor to climate change. Forest conservation and reforestation: Protecting existing forests and implementing reforestation projects can help absorb carbon dioxide from the atmosphere and preserve biodiversity. Sustainable agriculture: Adopting practices such as organic farming, agroforestry, and precision agriculture can reduce emissions from agriculture and promote soil health. Circular economy: Shifting towards a circular economy model that emphasizes recycling, waste reduction, and sustainable production can reduce emissions and minimize resource consumption. Climate policy and international cooperation: Implementing strong climate policies, such as carbon pricing and emissions trading, and fostering international cooperation to address climate change can drive collective action and accountability. Public awareness and education: Raising awareness about climate change and promoting education on sustainable practices can inspire individuals and communities to take action and make environmentally conscious choices.

Climate change has garnered significant attention in media, with various forms of media portraying its impact and raising awareness about the issue. Films like "An Inconvenient Truth" (2006) by Al Gore and "Before the Flood" (2016) by Leonardo DiCaprio present compelling documentaries that highlight the consequences of climate change and advocate for urgent action. These films use scientific evidence, expert interviews, and compelling visuals to engage and inform audiences.

In addition to documentaries, climate change is frequently depicted in news media through articles, reports, and opinion pieces. News outlets often cover climate-related events, such as extreme weather events, rising sea levels, and environmental activism. For instance, media coverage of global climate strikes led by young activists like Greta Thunberg has amplified the urgency of the issue and mobilized public discourse.

Furthermore, climate change is a recurring theme in literature, with books like "The Water Will Come" by Jeff Goodell and "The Sixth Extinction" by Elizabeth Kolbert exploring the environmental challenges we face. These literary works offer in-depth analysis, personal stories, and scientific research to provide readers with a deeper understanding of climate change.

1. 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. 2. Rising global temperatures have led to the loss of an estimated 150 billion tons of ice per year from glaciers worldwide. If the current trend continues, it is projected that sea levels could rise by about 0.3 to 1 meter by the end of the century, endangering low-lying areas and increasing the frequency of coastal flooding. 3. The year 2020 tied with 2016 as the hottest year on record, according to data from multiple global temperature datasets. This warming trend is consistent with long-term climate change caused by human activities.

Climate change is a critical and pressing global issue that warrants extensive analysis and discussion. Writing an essay on this topic is crucial for several reasons. Firstly, climate change poses significant threats to our planet's ecosystems, biodiversity, and human well-being. By exploring the causes, impacts, and potential solutions of climate change, we can raise awareness and foster a sense of urgency to address this issue. Secondly, climate change is intricately linked to various socio-economic and political factors. It intersects with topics such as sustainable development, environmental justice, and global governance. Understanding these complex connections is essential for informed decision-making and policy formulation. Furthermore, climate change is a subject of great scientific interest and ongoing research. It offers an opportunity to delve into interdisciplinary fields like climatology, ecology, economics, and social sciences. Writing an essay on climate change allows for the exploration of scientific studies, data analysis, and the evaluation of different perspectives.

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

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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.

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Impact case study

An economic solution to climate change that could save trillions.

  Thank you to the Grantham Research Institute of the LSE for their hard work behind the scenes. Christiana Figueres Executive Secretary of the United Nations Framework Convention on Climate Change

Research by

Professor Simon Dietz

Department of geography and environment, prof. sam fankhauser, director, grantham research institute on climate change and the environment.

LSE research helped governments worldwide put a price on carbon that could curb harmful emissions and save $1 trillion annually

What was the issue?

Amid rising concern over the impact of climate change, policymakers have been looking at ways to reduce carbon emissions.

''For economists the problem is that polluters are not required to bear the full cost of the pollution they create in terms of the costs to wider society.''

Economists have argued that putting a “price” on carbon, so that polluters are forced to take into account the negative effects of their harmful emissions, must be a core element of an economically efficient strategy to curb these emissions.

However, the pricing of carbon emissions is by no means an easy or straightforward undertaking. The approaches to such pricing are numerous, complex and competing, making it particularly challenging for policymakers, many with only a layperson's understanding, to decide on an optimal approach.

The stakes are huge. Estimates suggest that the cost savings from an economically efficient policy intervention could be as high $1 trillion a year globally.

What did we do?

Many countries such as the UK use cost-benefit analysis to evaluate new spending and regulations. The original approach used to price a ton of emissions was the so-called “social cost of carbon” - the economic value of the damage caused by an extra ton of greenhouse gases in the atmosphere.

The Stern Review on the Economics of Climate Change (2006) estimated the total cost of climate change to be equivalent to a one-off, permanent 5-20% loss in global average (mean) per-person spending in today’s money. The cost of each extra ton of carbon emitted today was estimated to be around $312.

Researchers at LSE's Grantham Research Institute on Climate Change and the Environment, led by Associate Professor Simon Dietz, subsequently updated the economic modelling that they had produced for the Stern Review.

They showed that the social cost of carbon that had been used in the Stern Review had a high level of uncertainty. They concluded that the most robust measure of the price of carbon for cost-benefit analysis should be the cost of cutting each extra ton of emissions.

Professor Sam Fankhauser and colleagues also looked at the specific tools being proposed to impose a price on carbon, such as carbon taxes and cap-and-trade. The latter was an approach in which governments set a limit or "cap" on certain types of emissions and polluting companies could sell or "trade" the unused portion of their limits to companies that were struggling to comply.

The researchers examined important design elements of cap-and-trade systems. These included: how to bank and borrow emissions permits and how this process interacted with other markets, taxes and subsidies; and ways to keep the permit price from rising too high or falling too low.

They also documented how carbon pricing policies had been implemented across the world so that countries could learn about what other jurisdictions were doing and become aware of good ideas and practices being tested elsewhere.

“Thank you to the Grantham Research Institute of the LSE for their hard work behind the scenes.”

 - Christiana Figueres, Executive Secretary of the United Nations Framework Convention on Climate Change.

What happened?

The research has influenced both the policy thinking as well as the design and substance of carbon pricing legislation in the UK and elsewhere in the world.

Carbon pricing in the UK

In 2009 the UK Department for Energy and Climate Change (DECC) changed its guidance on the price of carbon for cost-benefit analysis, from using the social cost of carbon to using the marginal cost of cutting emissions, as the LSE research had proposed.

DECC's report cited Dietz, who had been one of six independent peer-reviewers of the interim guidance produced in 2007. He was employed as a consultant by DECC for the preparation of the new guidance in 2008/2009.

This change in carbon pricing was expected to increase the likelihood that the UK government would meet its statutory obligation per the Climate Change Act of reducing overall emissions by at least 26% by 2020 and 80% by 2050.

Carbon pricing worldwide

The research has also had an impact on legislation to introduce new carbon pricing policies in Australia, China, Mexico and South Korea, all of which have adopted new measures or are in the process of doing so.

The United Nations has referred to the Grantham research as contributing to the prospects for an international agreement on climate change.

The research was also used as the basis of discussions between UK and EU legislators and China’s chief negotiator, Minister Xie Zhenhua, in the House of Commons in October 2011 when the two sides examined examples of “good practice”.

The researchers have worked closely with GLOBE International, a global forum of parliamentarians. Their research fed directly into an international policy paper that aimed to help national legislators understand the nuts and bolts of carbon markets as they draft their own country-specific legislation.

The LSE team also provided direct advice on a particular technical point of the Australian trading scheme related to the treatment of carbon offsets (credits that can be earned by reducing greenhouse gas emissions in one location that can offset pollution elsewhere).

Search all impact case studies.

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What Are the Effects of Climate Change?

A rapidly warming planet poses an existential threat to all life on earth. Just how bad it gets depends on how quickly we act.

An area flooded by Super Typhoon Noru in the Bulacan Province of the Philippines, September 26, 2022

Rouelle Umali/Xinhua via Getty Images

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Climate change is our planet’s greatest existential threat . If we don’t limit greenhouse gas emissions from the burning of fossil fuels, the consequences of rising global temperatures include massive crop and fishery collapse, the disappearance of hundreds of thousands of species, and entire communities becoming uninhabitable. While these outcomes may still be avoidable, climate change is already causing suffering and death. From raging wildfires and supercharged storms, its compounding effects can be felt today, outside our own windows.

Understanding these impacts can help us prepare for what’s here, what’s avoidable, and what’s yet to come, and to better prepare and protect all communities. Even though everyone is or will be affected by climate change, those living in the world’s poorest countries—which have contributed least to the problem—are the most climate-vulnerable. They have the fewest financial resources to respond to crises or adapt, and they’re closely dependent on a healthy, thriving natural world for food and income. Similarly, in the United States, it is most often low-income communities and communities of color that are on the frontlines of climate impacts. And because climate change and rising inequality are interconnected crises, decision makers must take action to combat both—and all of us must fight for climate justice. Here’s what you need to know about what we’re up against.

Effects of climate change on weather

Effects of climate change on the environment, effects of climate change on agriculture, effects of climate change on animals, effects of climate change on humans, future effects of climate change.

As global temperatures climb, widespread shifts in weather systems occur, making events like droughts , hurricanes , and floods more intense and unpredictable. Extreme weather events that may have hit just once in our grandparents’ lifetimes are becoming more common in ours. However, not every place will experience the same effects: Climate change may cause severe drought in one region while making floods more likely in another.

Already, the planet has warmed 1.1 degrees Celsius (1.9 degrees Fahrenheit) since the preindustrial era began 250 years ago, according to the Intergovernmental Panel on Climate Change (IPCC) . And scientists warn it could reach a worst-case scenario of 4 degrees Celsius (7.2 degrees Fahrenheit) by 2100 if we fail to tackle the causes of climate change —namely, the burning of fossil fuels (coal, oil, and gas) .

Tokyo during a record-breaking heat wave, August 13, 2020

The Yomiuri Shimbun via AP Images

Higher average temperatures

This change in global average temperature—seemingly small but consequential and climbing—means that, each summer, we are likely to experience increasingly sweltering heat waves. Even local news meteorologists are starting to connect strings of record-breaking days to new long-term trends, which are especially problematic in regions where infrastructure and housing have not been built with intensifying heat in mind. And heat waves aren’t just uncomfortable—they’re the leading cause of weather-related fatalities in the United States.

Longer-lasting droughts

Hotter temperatures increase the rate at which water evaporates from the air, leading to more severe and pervasive droughts . Already, climate change has pushed the American West into a severe “megadrought”—the driest 22-year stretch recorded in at least 1,200 years—shrinking drinking water supplies, withering crops , and making forests more susceptible to insect infestations. Drought can also create a positive feedback loop in which drier soil and less plant cover cause even faster evaporation.

More intense wildfires

This drier, hotter climate also creates conditions that fuel more vicious wildfire seasons—with fires that spread faster and burn longer—putting millions of additional lives and homes at risk. The number of large wildfires doubled between 1984 and 2015 in the western United States. And in California alone, the annual area burned by wildfires increased 500 percent between 1972 and 2018.

Evacuation after Hurricane Harvey in Houston, August 28, 2017

David J. Phillip/AP Photo

Stronger storms

Warmer air also holds more moisture, making tropical cyclones wetter, stronger, and more capable of rapidly intensifying. In the latest report from the IPCC , scientists found that daily rainfall during extreme precipitation events would increase by about 7 percent for each degree Celsius of global warming, increasing the dangers of flooding . The frequency of severe Category 4 and 5 hurricanes is also expected to increase. In 2017, Hurricane Harvey, a devastating Category 4 storm, dumped a record 275 trillion pounds of rain and resulted in dozens of deaths in the Houston area.

From the poles to the tropics, climate change is disrupting ecosystems. Even a seemingly slight shift in temperature can cause dramatic changes that ripple through food webs and the environment.

The lake at Jökulsárlón, a glacial lagoon in Iceland, which has grown because of continued glacial melting

Eskinder Debebe/UN Photo

Melting sea ice

The effects of climate change are most apparent in the world’s coldest regions—the poles. The Arctic is heating up twice as fast as anywhere else on earth, leading to the rapid melting of glaciers and polar ice sheets, where a massive amount of water is stored. As sea ice melts, darker ocean waters that absorb more sunlight become exposed, creating a positive feedback loop that speeds up the melting process. In just 15 years, the Arctic could be entirely ice-free in the summer.

Sea level rise

Scientists predict that melting sea ice and glaciers, as well as the fact that warmer water expands in volume, could cause sea levels to rise as much as 6.6 feet by the end of the century, should we fail to curb emissions. The extent (and pace) of this change would devastate low-lying regions, including island nations and densely populated coastal cities like New York City and Mumbai.

But sea level rise at far lower levels is still costly, dangerous, and disruptive. According to the 2022 Sea Level Rise Technical Report from the National Ocean Service, the United States will see a foot of sea level rise by 2050, which will regularly damage infrastructure, like roads, sewage treatment plants, and even power plants . Beaches that families have grown up visiting may be gone by the end of the century. Sea level rise also harms the environment, as encroaching seawater can both erode coastal ecosystems and invade freshwater inland aquifers, which we rely on for agriculture and drinking water. Saltwater incursion is already reshaping life in nations like Bangladesh , where one-quarter of the lands lie less than 7 feet above sea level.

A waterlogged road, caused by rainstorm and upstream flood discharge, in the Shaoguan, Guangdong Province of China, June 21, 2022

Stringer/Anadolu Agency via Getty Images

In addition to coastal flooding caused by sea level rise, climate change influences the factors that result in inland and urban flooding: snowmelt and heavy rain. As global warming continues to both exacerbate sea level rise and extreme weather, our nation’s floodplains are expected to grow by approximately 45 percent by 2100. In 2022, deadly flooding in Pakistan—which inundated as much as a third of the country—resulted from torrential rains mixed with melting glaciers and snow.

Warmer ocean waters and marine heat waves

Oceans are taking the brunt of our climate crisis. Covering more than 70 percent of the planet’s surface, oceans absorb 93 percent of all the heat that’s trapped by greenhouse gases and up to 30 percent of all the carbon dioxide emitted from burning fossil fuels.

Temperature-sensitive fish and other marine life are already changing migration patterns toward cooler and deeper waters to survive, sending food webs and important commercial fisheries into disarray. And the frequency of marine heat waves has increased by more than a third . These spikes have led to mass die-offs of plankton and marine mammals.

To make matters worse, the elevated absorption of carbon dioxide by the ocean leads to its gradual acidification , which alters the fundamental chemical makeup of the water and threatens marine life that has evolved to live in a narrow pH band. Animals like corals, oysters, and mussels will likely feel these effects first, as acidification disrupts the calcification process required to build their shells.

Ecosystem stressors

Land-based ecosystems—from old-growth forests to savannahs to tropical rainforests—are faring no better. Climate change is likely to increase outbreaks of pests, invasive species, and pathogen infections in forests. It’s changing the kinds of vegetation that can thrive in a given region and disrupting the life cycles of wildlife, all of which is changing the composition of ecosystems and making them less resilient to stressors. While ecosystems have the capacity to adapt, many are reaching the hard limits of that natural capacity . More repercussions will follow as temperatures rise.

Climate change appears to be triggering a series of cascading ecological changes that we can neither fully predict nor, once they have enough momentum, fully stop. This ecosystem destabilization may be most apparent when it comes to keystone species that have an outsize- role in holding up an ecosystem’s structure.

Coffee plants destroyed by frost due to extremely low temperatures near Caconde in the São Paulo state of Brazil, August 25, 2021

Jonne Roriz/Bloomberg via Getty Images

Less predictable growing seasons

In a warming world, farming crops is more unpredictable—and livestock, which are sensitive to extreme weather, become harder to raise. Climate change shifts precipitation patterns, causing unpredictable floods and longer-lasting droughts. More frequent and severe hurricanes can devastate an entire season’s worth of crops. Meanwhile, the dynamics of pests, pathogens, and invasive species—all of which are costly for farmers to manage—are also expected to become harder to predict. This is bad news, given that most of the world’s farms are small and family-run. One bad drought or flood could decimate an entire season’s crop or herd. For example, in June 2022, a triple-digit heat wave in Kansas wiped out thousands of cows. While the regenerative agriculture movement is empowering rural communities to make their lands more resilient to climate change, unfortunately, not all communities can equitably access the support services that can help them embrace these more sustainable farming tactics.

Reduced soil health

Healthy soil has good moisture and mineral content and is teeming with bugs, bacteria, fungi, and microbes that in turn contribute to healthy crops. But climate change, particularly extreme heat and changes in precipitation, can degrade soil quality. These impacts are exacerbated in areas where industrial, chemical-dependent monoculture farming has made soil and crops less able to withstand environmental changes.

Food shortages

Ultimately, impacts to our agricultural systems pose a direct threat to the global food supply. And food shortages and price hikes driven by climate change will not affect everyone equally: Wealthier people will continue to have more options for accessing food, while potentially billions of others will be plummeted into food insecurity—adding to the billions that already have moderate or severe difficulty getting enough to eat.

The poison dart frog’s survival is currently threatened by habitat loss and climate change.

Chris Mattison/Minden Pictures

It’s about far more than just the polar bears: Half of all animal species in the world’s most biodiverse places, like the Amazon rainforest and the Galapagos Islands, are at risk of extinction from climate change. And climate change is threatening species that are already suffering from the biodiversity crisis, which is driven primarily by changes in land and ocean use (like converting wild places to farmland) and direct exploitation of species (like overfishing and wildlife trade). With species already in rough shape—more than 500,000 species have insufficient habitat for long-term survival—unchecked climate change is poised to push millions over the edge.

Climate change rapidly and fundamentally alters (or in some cases, destroys) the habitat that wildlife have incrementally adapted to over millennia. This is especially harmful for species’ habitats that are currently under threat from other causes. Ice-dependent mammals like walruses and penguins, for example, won’t fare well as ice sheets shrink. Rapid shifts in ocean temperatures stress the algae that nourishes coral reefs, causing reefs to starve—an increasingly common phenomenon known as coral bleaching . Disappearing wetlands in the Midwest’s Prairie Pothole Region means the loss of watering holes and breeding grounds for millions of migratory birds. (Many species are now struggling to survive, as more than 85 percent of wetlands have been lost since 1700). And sea level rise will inundate or erode away many coastal habitats, where hundreds of species of birds, invertebrates, and other marine species live.

Many species’ behaviors—mating, feeding, migration—are closely tied to subtle seasonal shifts, as in temperature , precipitation level, and foliage. In some cases, changes to the environment are happening quicker than species are able to adapt. When the types and quantity of plant life change across a region, or when certain species bloom or hatch earlier or later than in the past, it impacts food and water supplies and reverberates up food chains.

Wildfire smoke–filled air in Multnomah County, Oregon, September 16, 2020

Motoya Nakamura/Multnomah County Communications, CC BY NC-ND 4.0

Ultimately, the way climate change impacts weather, the environment, animals, and agriculture affects humanity as well. But there’s more. Around the world, our ways of life—from how we get our food to the industries around which our economies are based—have all developed in the context of relatively stable climates. As global warming shakes this foundation, it promises to alter the very fabric of society. At worst, this could lead to widespread famine, disease, war, displacement , injury, and death. For many around the world, this grim forecast is already their reality. In this way, climate change poses an existential threat to all human life.

Human health

Climate change worsens air quality . It increases exposure to hazardous wildfire smoke and ozone smog triggered by warmer conditions, both of which harm our health, particularly for those with pre-existing illnesses like asthma or heart disease.

Insect-borne diseases like malaria and Zika become more prevalent in a warming world as their carriers are able to exist in more regions or thrive for longer seasons. In the past 30 years, the incidence of Lyme disease from ticks has nearly doubled in the United States, according to the U.S. Environmental Protection Agency (EPA). Thousands of people face injury, illness , and death every year from more frequent or more intense extreme weather events. At a 2-degree Celsius rise in global average temperature, an estimated one billion people will face heat stress risk. In the summer of 2022 alone, thousands died in record-shattering heat waves across Europe. Weeks later, dozens were killed by record-breaking urban flooding in the United States and South Korea—and more than 1,500 people perished in the flooding in Pakistan , where resulting stagnant water and unsanitary conditions threaten even more.

The effects of climate change—and the looming threat of what’s yet to come—take a significant toll on mental health too. One 2021 study on climate anxiety, published in the journal Nature , surveyed 10,000 young people from 10 different countries. Forty-five percent of respondents said that their feelings about climate change, varying from anxiety to powerlessness to anger, impacted their daily lives.

A patient with dengue fever, a mosquito-borne disease, in Karachi, Pakistan, where the spread of diseases worsened due to flooding, September 2022

Fareed Khan/AP Photo

Worsening inequity

The climate crisis exacerbates existing inequities. Though wealthy nations, such as the United States, have emitted the lion’s share of historical greenhouse gas emissions, it’s developing countries that may lack the resources to adapt and will now bear the brunt of the climate crisis. In some cases, low-lying island nations—like many in the Pacific —may cease to exist before developed economies make meaningful reductions to their carbon emissions.

Even within wealthier nations, disparities will continue to grow between those rich enough to shield themselves from the realities of climate change and those who cannot. Those with ample resources will not be displaced from their homes by wars over food or water—at least not right away. They will have homes with cool air during heat waves and be able to easily evacuate when a hurricane is headed their way. They will be able to buy increasingly expensive food and access treatment for respiratory illness caused by wildfire smoke. Billions of others can’t—and are paying the highest price for climate pollution they did not produce.

Hurricane Katrina, for example, displaced more than one million people around the Gulf Coast. But in New Orleans , where redlining practices promoted racial and economic segregation, the city’s more affluent areas tended to be located on higher ground—and those residents were able to return and rebuild much faster than others.

Displacement

Climate change will drive displacement due to impacts like food and water scarcities, sea level rise, and economic instability. It’s already happening. The United Nations Global Compact on Refugees recognizes that “climate, environmental degradation and disasters increasingly interact with the drivers of refugee movements.” Again, communities with the fewest resources—including those facing political instability and poverty—will feel the effects first and most devastatingly.

A flood-damaged home in Queens, New York, December 1, 2021

K.C. Wilsey/FEMA

Economic impacts

According to the 2018 National Climate Assessment, unless action is taken, climate change will cost the U.S. economy as much as $500 billion per year by the end of the century. And that doesn’t even include its enormous impacts on human health . Entire local industries—from commercial fishing to tourism to husbandry—are at risk of collapsing, along with the economic support they provide.

Recovering from the destruction wrought by extreme weather like hurricanes, flash floods, and wildfires is also getting more expensive every year. In 2021, the price tag of weather disasters in the United States totaled $145 billion —the third-costliest year on record, including a number of billion-dollar weather events.

The first wave of impacts can already be felt in our communities and seen on the nightly news. The World Health Organization says that in the near future, between 2030 and 2050, climate change is expected to cause an additional 250,000 deaths per year from things like malnutrition, insect-borne diseases, and heat stress. And the World Bank estimates that climate change could displace more than 140 million people within their home countries in sub-Saharan Africa, South Asia, and Latin America by 2050.

But the degree to which the climate crisis upends our lives depends on whether global leaders decide to chart a different course. If we fail to curb greenhouse gas emissions, scientists predict a catastrophic 4.3 degrees Celsius , (or around 8 degrees Fahrenheit) of warming by the end of the century. What would a world that warm look like? Wars over water. Crowded hospitals to contend with spreading disease. Collapsed fisheries. Dead coral reefs. Even more lethal heat waves. These are just some of the impacts predicted by climate scientists .

Solar panel installation at a floating photovoltaic plant on a lake in Haltern am See, Germany, April 2022

Martin Meissner/AP Photo

Climate mitigation, or our ability to reverse climate change and undo its widespread effects, hinges on the successful enactment of policies that yield deep cuts to carbon pollution, end our dependence on dangerous fossil fuels and the deadly air pollution they generate, and prioritize the people and ecosystems on the frontlines. And these actions must be taken quickly in order to ensure a healthier present day and future. In one of its latest reports, the IPCC presented its most optimistic emissions scenario, in which the world only briefly surpasses 1.5 degrees of warming but sequestration measures cause it to dip back below by 2100. Climate adaptation , a term that refers to coping with climate impacts, is no longer optional ; it’s necessary, particularly for the world’s most vulnerable populations.

By following the urgent warnings of the IPCC and limiting warming, we may be able to avoid passing some of the critical thresholds that, once crossed, can lead to potentially irreversible, catastrophic impacts for the planet, including more warming. These thresholds are known as climate tipping points and refer to when a natural system "tips" into an entirely different state. One example would be Arctic permafrost, which stores carbon like a freezer: As the permafrost melts from warming temperatures, it releases carbon dioxide into the atmosphere.

Importantly, climate action is not a binary pass-fail test. Every fraction of a degree of warming that we prevent will reduce human suffering and death, and keep more of the planet’s natural systems intact. The good news is that a wide range of solutions exist to sharply reduce emissions, slow the pace of warming, and protect communities on the frontlines of climate impacts. Climate leaders the world over—those on major political stages as well as grassroots community activists—are offering up alternative models to systems that prioritize polluters over people. Many of these solutions are rooted in ancestral and Indigenous understandings of the natural world and have existed for millennia. Some solutions require major investments into clean, renewable energy and sustainable technologies. To be successful, climate solutions must also address intersecting crises—like poverty, racism, and gender inequality —that compound and drive the causes and impacts of the climate crisis. A combination of human ingenuity and immense political will can help us get there.

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Climate justice: How do we contribute to sustainable development and address climate change at the same time?

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For many, nature-based solutions and climate-resilient development present a “triple win” for sustainable development, climate mitigation and climate adaptation.

But while planting a mangrove forest to stabilize eroding shorelines can provide a nursery habitat for commercial fisheries and absorb energy from storm surges, it’s not always a win-win-win scenario, a Northeastern professor says.

“Yes, there’s that potential, but there’s not that guarantee,” says Laura Kuhl, an assistant professor of public policy and urban affairs. “There’s also potential that these projects can be implemented in ways that can cause harm and be unjust.”

So Kuhl and graduate students Alaina Kinol and Johan Arango-Quiroga are proposing a new approach to planting mangroves and building flood-resistant homes in coastal areas—examining such projects through a climate-justice lens.

“Nature-based solutions promised this triple win of sustainable development, mitigation and adaptation, and climate-resilient development is all about the triple win, as well,” Kuhl says. “But for every single policy, investment and project, we have to ask if it is being framed with the questions in mind of how do we contribute to sustainable development and address climate change at the same time. We have to be thinking about the justice implications in order to achieve these triple wins.”

Kinol, Arango-Quiroga and Kuhl recently published “ Opportunities for nature-based solutions to contribute to climate-resilient development pathways ” in the June edition of the journal Current Opinion in Environmental Sustainability. The paper originated with a directed study on nature-based solutions (NbS), or the practice of using nature to help solve climate challenges—for example, think mangroves not sea walls for coastal protection, Kinol says.

But Kuhl and the students soon realized that issues of climate justice were as important to successful projects as funding, sound science and other factors.

“There’s been a real shift in the literature in the last 10 or so years where academia has become very aware that social and environmental issues have become intertwined,” Kinol says. 

“I think part of the idea of climate justice is that you can’t have climate action without social action, and you can’t have social action that doesn’t incorporate climate action.”

Climate justice is not necessarily always taken into account, however.

For example, Kuhl cites the carbon markets—where large corporations (predominantly in the global north) can offset their carbon use by purchasing resources (primarily in the global south). But while a project to reforest the Amazon might have great climate mitigation potential by sequestering a ton of carbon—is it just if it’s also displacing a local agricultural or indigenous community? Is it just if it enables the corporation to continue burning carbon as usual? Moreover, will it even be a successful project?

“We’re proposing a framework for taking these different elements of justice—procedural justice, restorative justice, distributional justice, recognitional justice—and saying here’s the type of questions you want to ask about a nature-based solution to see if it will be just,” Kuhl says. “What these specific questions will look like will vary from one context to another, but hopefully this kind of framework provides an analytical tool for people to ask those questions.”

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Kuhl says questions like who is benefiting from the project, where is the project being implemented, and how will it be designed, are all questions that can be applied to projects throughout the world.

“There’s a lot of considerations that we bring forward in this framework,” Kuhl says. “There’s probably no perfect example (of a project) out there that fulfills every element of justice in a perfect way. But there’s lots of examples of projects and initiatives that are doing parts of it.”

The researchers’ next steps are applying their climate justice framework to specific projects—a water-management project in a watershed in Colombia; and a planning project for transformational and equitable adaptation to climate change with nature-based solutions in the Boston area.

“It’s the common thread through all of this,” Kuhl says. “Putting justice at the center.”

Cyrus Moulton is a Northeastern Global News reporter. Email him at [email protected] . Follow him on Twitter @MoultonCyrus .

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How Much Does It Cost to Fix the Climate Problem?

Climate solutions research series.

The following question is of profound importance, yet rarely discussed: If we solved the climate problem at the lowest cost to society, what would we do physically, and how much would it cost?

An estimate is shown below:

All numbers are in units of dollars cost, per American, per year. Europeans would see similar numbers. These costs would show up as an increase in the cost of goods and services, in addition to money spent by government.

Costs are divided into three categories: planet cooling, decarbonization green premium and additional R&D.

This table assumes decarbonization occurs over 30 years, at a constant rate. It also assumes decarbonization green premium costs start at $20 per ton of carbon dioxide reduced and increase over 30 years to $80 per ton.

The left part of the table looks at years one, two and three, while the right part of the table looks at years 10, 20 and 30. One might think of these as the “early years” and the “later years.” The early years are relatively easy, since green premium costs are proportional to the amount of carbon dioxide reduced, and initially this is small.

For more details on the table, watch the following video:

Tolerance of costs

Evidence of climate harm increases with time. Therefore, the public’s tolerance-of-costs is also likely to increase. In other words, to survive climate change, we need costs to stay below tolerance-of-costs as we go through time.

For example, we need the public to accept approximately $50 per American, per year, during the early years, when people are moderately nervous about climate. And accept hundreds of dollars per American, per year, during the later years, when people are more nervous.

More R&D

Resolving climate change involves building carbon-free infrastructure, such as solar farms and wind farms. This is likely to cost the world on the order of $100 trillon over several decades. In theory, we can reduce this cost by spending additional billions of dollars on R&D. If additional R&D costs $20 billion a year, and the U.S. paid half, this would cost each American $30 per year (50% x $20 billion/330 million).

Planet cooling

We primarily have two climate problems. One is global warming from carbon dioxide, and the other is global warming from tipping points .

We can solve the carbon dioxide problem by replacing coal, oil, and gas with solar, wind, hydro, and nuclear. However, this will not solve the tipping point problem. We seem to be tipping too fast . Therefore, we must reflect a tiny percentage of sunlight back into outer space.

There are several ways to do this, one of which is to inject sulfur the atmosphere, above where airplanes typically fly. Sulfur is contained within coal and oil, and is therefore commonly emitted upon combustion.

In theory, we can filter it out before combustion, move the harvested sulfur to an airplane, and emit it at a high altitude, rather than at ground level. High-altitude sulfur stays aloft for a year or two, while ground-level sulfur typically stays aloft for several days. Therefore, changing the emissions site reduces the temperature of the planet, while not increasing total sulfur emissions. The latter point is important, since sulfur is harmful to people, plants and oceans.

To justify the expense, our society would need to compare the cost of cooling the planet, with the cost of not cooling the planet. One study suggests large scale planet cooling would cost $18 billion a year . For comparison, the total value of New York City property is $1.4 billion . And this is just one coastal city that would be lost to sea level rise.

If the U.S. paid half, planet cooling would cost each American $27 per year (50% x $18 billion/330 million).

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Glenn Weinreb is the CEO and Owner of GW Instruments (www.gwinst.com), a manufacturer of data acquisition hardware and software. He founded this company in 1985 while an electrical engineering student at MIT. GWI's products are used by scientists and engineers to interface sensors to computers for purposes of measurement and control. GWI designs hardware, has it manufactured by a firm in the USA, and then sells worldwide through a network of distribution channels. He developed GWI's products and therefore has much experienced designing analog and digital electronics, writing software (embedded systems, Windows/Macintosh application software, website) and doing mechanical design. He is experienced with raising venture capital (from Sigma Partners), setting up distribution, management, sales/marketing, web design, and manufacturing

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REVIEW article

The linkage between global financial crises, corporate social responsibility and climate change: unearthing research opportunities through bibliometric reviews provisionally accepted.

• 1 Kotebe University of Education, Ethiopia
• 2 University of Johannesburg, South Africa

The final, formatted version of the article will be published soon.

Financial matters, corporate social responsibility (CSR), climate change, and other sustainable solutions all work in tandem. In order to provide a thorough understanding of the integration between various components during crises, it is necessary to provide knowledge of the interaction between financial, societal, and environmental aspects. In order to accomplish this, hundreds of papers were examined and presented using bibliometric analysis. The study demonstrated that, when examining financial crises in relation to CSR and climate change, sustainability issues were clearly examined. Sustainability, environmental economics, governance approaches, and sustainable development are some of the main issues in this comprehensive subject. Besides, the emerging topics that need more research include organizational resilience, global financial crises, and sustainable performance, while there are no specific themes developed in the subject matter that integrate financial crises, CSR, and climate change. Thus, future researchers need to provide new insights on the integration of these concepts.

Keywords: Financial crises, CSR, Climate Change, sustainability, scientific mapping, thematic

Received: 19 Feb 2024; Accepted: 08 May 2024.

Copyright: © 2024 Chebo, Dhliwayo and Batu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) . The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Mx. Abdella K. Chebo, Kotebe University of Education, Addis Ababa, Ethiopia

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