Learn · TED

Talk18 min

Why I must speak out about climate change

James Hansen · TED

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About

Top climate scientist James Hansen tells the story of his involvement in the science of and debate over global climate change. In doing so he outlines the overwhelming evidence that change is happening and why that makes him deeply worried about the future.

The talk

  1. Why I must speak out about climate change 18 min · TED's player

Credits and licence

Institution
TED
Department
TED2012
Speaker
James Hansen
Year
2012
Level
For everyone
Language
English
Subjects
Earth and environment
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed