Favorite talks
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Paul Gilding: The Earth is full
16:46 Posted: Feb 2012
Views: 807,945 | Comments: 758
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Garth Lenz: The true cost of oil
17:40 Posted: Feb 2012
Views: 640,420 | Comments: 617
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Johan Rockstrom: Let the environment guide our development
18:10 Posted: Aug 2010
Views: 364,893 | Comments: 547
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Rachel Armstrong: Architecture that repairs itself?
07:32 Posted: Oct 2009
Views: 542,686 | Comments: 138
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Jared Diamond on why societies collapse
18:21 Posted: Oct 2008
Views: 676,616 | Comments: 177
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Wade Davis: The worldwide web of belief and ritual
19:12 Posted: Jun 2008
Views: 439,988 | Comments: 164
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Paul Collier on the "bottom billion"
16:51 Posted: May 2008
Views: 429,214 | Comments: 118
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Jacqueline Novogratz on patient capitalism
18:23 Posted: Aug 2007
Views: 325,285 | Comments: 90
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Ngozi Okonjo-Iweala: Want to help Africa? Do business here
20:13 Posted: May 2007
Views: 327,211 | Comments: 106
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Martin Rees asks: Is this our final century?
17:26 Posted: Jan 2007
Views: 662,616 | Comments: 153