Global warming facts

Basic facts are well-understood and accepted by the scientific community

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Despite overwhelming scientific evidence, popular myths and misinformation abound. Here are some of the facts of what we know about global warming.

  1. There is scientific consensus on the basic facts of global warming.

    The most respected scientific bodies have stated unequivocally that global warming is occurring, and people are causing it. Read their statements »

  2. Scientists are certain that the Earth is warming.

    Scientists are certain the Earth has been warming for 100 years. Here's how they know »

  3. Human activity is causing the Earth to get warmer.

    Only CO2 and other greenhouse gas emissions from human activities explain the observed warming now taking place on Earth How we know »

  4. The effects of warming can be seen today.

    We can already see the effects of global warming in our world through disappearing habitat, shrinking arctic sea ice and extreme weather. Impacts we can see today »

Science sets our agenda

EDF was founded by scientists, and we base our work in facts and results.

See how we put science into action »