Favorite talks
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Esther Perel: The secret to desire in a long-term relationship
19:10 Posted: Feb 2013
Views: 1,768,896 | Comments: 312
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Tristram Stuart: The global food waste scandal
14:15 Posted: Sep 2012
Views: 683,799 | Comments: 162
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Leslie T. Chang: The voices of China's workers
14:25 Posted: Sep 2012
Views: 511,552 | Comments: 338
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Lisa Kristine: Photos that bear witness to modern slavery
19:21 Posted: Aug 2012
Views: 1,060,142 | Comments: 348
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Richard Wilkinson: How economic inequality harms societies
16:54 Posted: Oct 2011
Views: 1,815,982 | Comments: 922
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Naomi Klein: Addicted to risk
19:49 Posted: Jan 2011
Views: 532,489 | Comments: 328
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William Li: Can we eat to starve cancer?
20:02 Posted: May 2010
Views: 2,283,961 | Comments: 489
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Al Gore warns on latest climate trends
07:44 Posted: May 2009
Views: 455,359 | Comments: 830
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Jared Diamond on why societies collapse
18:21 Posted: Oct 2008
Views: 687,904 | Comments: 179
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Al Gore: New thinking on the climate crisis
27:54 Posted: Apr 2008
Views: 948,187 | Comments: 571