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Is the Amazon Rainforest Disappearing?

A TED-Ed lesson on the Amazon — Earth's 'air conditioner.' Learn how its 390 billion trees cycle water and cool the planet, how much has been lost to deforestation, and the tipping point scientists warn about.

How it works

  • Press play to start the video.
  • Videos 5 minutes or longer pause once or twice for a quick check. Get it right and you're on your way. If not, you'll see a friendly explanation and the video simply keeps going. Short videos skip the checks.
  • At the end there's a 3-question test. Score 60% or more to complete the lesson, and 80% or more to master it. You can always watch again and try for a higher score.