James Hansen: Why I must speak out about climate change

פורסם: 26 באפר׳ 2012, 9:46 על ידי: Sustainability Org   [ עודכן 26 באפר׳ 2012, 9:47 ]
Filmed February 2012 

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.

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

Source: ted.com

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