Favorite talks
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Bill Gates on energy: Innovating to zero!
27:49 Posted: Feb 2010
Views: 1,546,853 | Comments: 861
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Rob Hopkins: Transition to a world without oil
16:40 Posted: Nov 2009
Views: 378,556 | Comments: 218
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Hans Rosling: Asia's rise -- how and when
15:50 Posted: Nov 2009
Views: 1,064,959 | Comments: 261
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Dan Pink: The puzzle of motivation
18:36 Posted: Aug 2009
Views: 5,609,434 | Comments: 823
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Yann Arthus-Bertrand captures fragile Earth in wide-angle
14:54 Posted: Jun 2009
Views: 428,262 | Comments: 129
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Juan Enriquez: The next species of human
18:50 Posted: Feb 2009
Views: 1,681,190 | Comments: 315
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Alisa Miller: The news about the news
04:29 Posted: May 2008
Views: 777,255 | Comments: 172
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Jill Bolte Taylor's stroke of insight
18:44 Posted: Mar 2008
Views: 11,091,511 | Comments: 2461
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Juan Enriquez: Using biology to rethink the energy challenge
18:10 Posted: Nov 2007
Views: 473,266 | Comments: 112
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David Keith's unusual climate change idea
15:58 Posted: Nov 2007
Views: 528,500 | Comments: 235