Favorite talks
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Willie Smits: How to restore a rainforest
20:42 Posted: Mar 2009
Views: 401,731 | Comments: 124
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Capt. Charles Moore on the seas of plastic
07:20 Posted: Feb 2009
Views: 680,249 | Comments: 154
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Jared Diamond on why societies collapse
18:21 Posted: Oct 2008
Views: 677,843 | Comments: 177
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Steven Pinker: Human nature and the blank slate
22:42 Posted: Sep 2008
Views: 487,381 | Comments: 94
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Richard Dawkins: Militant atheism
29:10 Posted: Apr 2007
Views: 2,009,733 | Comments: 5844