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Earth's changing climate

Review your understanding of climate change in this free article aligned to NGSS standards.

Key points

  • Earth’s average temperature is rising, causing long-term shifts in global weather patterns. This is known as climate change.
  • Climate change is caused mainly by greenhouse gas emissions. A greenhouse gas is a gas that traps heat in Earth’s atmosphere. While greenhouse gases are naturally occurring, human activities have added too much of these gases to the atmosphere.
  • The main greenhouse gas contributing to climate change is carbon dioxide (COA2). Most COA2 emissions are produced by burning fossil fuels such as coal, oil, and natural gas.
  • To avoid the worst impacts of climate change, we need to both reduce COA2 emissions and remove excess COA2 from the atmosphere. This will require action from all parts of society, from individuals to governments.
A power plant.
A power plant generates energy by burning coal, a fossil fuel. Image credit: stevepb on Pixabay, Pixabay License.

Want to join the conversation?

  • boggle blue style avatar for user s2013658
    why not getrdof power plant
    (2 votes)
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    • female robot ada style avatar for user Lia
      If we got rid of every power plant all at once, millions who rely on that power to survive wouldn't have it any anymore! We wouldn't be able to survive. Also, there are several jobs that power plants provide. If they shut down immediately, a lot of people would be without work, and then the economy would be impacted too. There are just too many people relying on them for us to just get rid of them. It's better to switch to windmills and solar panels, but gradually, so that we humans can still survive, while at the same time slowly using less and less of these harmful power plants.
      (47 votes)
  • orange juice squid orange style avatar for user soondeez25
    These kinds of things make me afraid to have kids because i dont want them breathing dirty air and becoming sick, how do i reassure myself from this stressful situation and how do i as an individual reduce the CO2 in the air?
    (14 votes)
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    • duskpin seedling style avatar for user ebonygladney28
      You can try to reduce the time you spend driving in your car, because cars run off of gas, which is basically fossil fuel, and when you drive your car releases co2 from the exhaust. You should try riding a bike or taking walks and/or jogs. You can also help reduce the amount of co2 by recycling.
      (9 votes)
  • duskpin sapling style avatar for user Anya
    I kinda wanna see what the earth would be like when global warming happens. Not that i WANT natural disasters or droughts to happen- i just think it would be really cool if the ocean rises because then people would ride boats everywhere and maybe have boat houses and since all most of the lights are way underwater or broken we could see the stars wayyyyyyy better and it would be like one of those space pictures from the internet that would be so cool!I know it would also be bad but people have been taking control of the earth and doing terrible things to the earth so i think it would be good for the earth to get higher oceans because people would stop burning as much stuff and using a ton of eleturicity and since valcano's would erupt i think in like maybe 100,000 - 10 million years the earth could get new continents, But i also know that it might be bad for the earth because it would mess up the animals habitats and animals wouldn't have enough food or they couldn't get the food they normally have and a ton of things would go into danger or extinction but i'm pretty sure the fish would be okay- but anyway whatever happens i'm gonna see it through >:O
    (12 votes)
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  • aqualine ultimate style avatar for user RicwithaC
    What is the purpose of power plants using fossil fuels? Can't They just use basic electricity and use energy given off from the Sun?
    (6 votes)
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  • piceratops ultimate style avatar for user lishaleo3
    So if we stop burning fossil fuels and instead use solar panels for electricity and instead of cars, bicycles, and other vehicles that don't need fuel and eat healthier diets this world would be healthier.
    (6 votes)
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  • male robot hal style avatar for user NabilThe🇧🇩
    We should make green houses for less poutioln right?
    (4 votes)
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  • blobby green style avatar for user BrianG
    What could we do as a society do to limit climate change.
    (5 votes)
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  • duskpin seedling style avatar for user EMMAS
    What are some alternatives to greenhouse gases?
    (5 votes)
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  • ohnoes default style avatar for user AshiePRO
    I don't get how climate change can cause more rain and storms. I understand that the poles will melt, but how does more water in the ocean correspond with more rain and thunderstorms?
    (4 votes)
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  • blobby green style avatar for user ISKO.SALIMJANOV
    Can we decrease the amount of CO2, by planting trees ?
    (3 votes)
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