James Hansen

Why I must speak out about climate change

1,230,324 views • 17:51
Subtitles in 30 languages
Up next
Details
Discussion
Details About the talk

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.

About the speaker
James Hansen · Climatologist

James Hansen has made key insights into our global climate — and inspired a generation of activists and scientists.

James Hansen has made key insights into our global climate — and inspired a generation of activists and scientists.