Favorite talks
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Joachim de Posada: Don't eat the marshmallow!
05:58 Posted: May 2009
Views: 1,000,278 | Comments: 522
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Carolyn Porco: Could a Saturn moon harbor life?
03:29 Posted: May 2009
Views: 371,646 | Comments: 168
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Seth Godin: The tribes we lead
17:29 Posted: May 2009
Views: 1,141,109 | Comments: 228
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Al Gore warns on latest climate trends
07:44 Posted: May 2009
Views: 447,527 | Comments: 830
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Saul Griffith: High-altitude wind energy from kites!
05:25 Posted: Mar 2009
Views: 393,202 | Comments: 105
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Kamal Meattle: How to grow fresh air
04:04 Posted: Mar 2009
Views: 1,486,484 | Comments: 154
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Jose Antonio Abreu: The El Sistema music revolution
16:58 Posted: Feb 2009
Views: 568,945 | Comments: 129
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Dennis vanEngelsdorp: a plea for bees
16:28 Posted: Dec 2008
Views: 270,445 | Comments: 94
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Andy Hobsbawm says: Do the green thing
03:22 Posted: Nov 2008
Views: 246,713 | Comments: 28
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Jared Diamond on why societies collapse
18:21 Posted: Oct 2008
Views: 676,552 | Comments: 177