Favorite talks
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Play
Pavan Sukhdev: Put a value on nature!
16:31 Posted: Dec 2011
Views: 505,572 | Comments: 139
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Bunker Roy: Learning from a barefoot movement
19:07 Posted: Oct 2011
Views: 4,390,041 | Comments: 341
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Paul Nicklen: Tales of ice-bound wonderlands
17:55 Posted: May 2011
Views: 524,821 | Comments: 148
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Lee Hotz: Inside an Antarctic time machine
09:45 Posted: Aug 2010
Views: 201,409 | Comments: 237
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Simon Sinek: How great leaders inspire action
18:04 Posted: May 2010
Views: 10,707,450 | Comments: 1144
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William Kamkwamba: How I harnessed the wind
05:59 Posted: Sep 2009
Views: 1,093,687 | Comments: 244
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Ray Anderson: The business logic of sustainability
15:54 Posted: May 2009
Views: 426,671 | Comments: 102
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William Kamkwamba: How I built a windmill
04:12 Posted: Jul 2007
Views: 644,990 | Comments: 142