Favorite talks
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Sanjay Pradhan: How open data is changing international aid
14:26 Posted: Oct 2012
Views: 295,423 | Comments: 54
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Wolfgang Kessling: How to air-condition outdoor spaces
11:35 Posted: Jun 2012
Views: 318,465 | Comments: 56
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Mike Biddle: We can recycle plastic
10:58 Posted: Oct 2011
Views: 767,323 | Comments: 273
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Julian Treasure: 5 ways to listen better
07:50 Posted: Jul 2011
Views: 1,653,247 | Comments: 269
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William Kamkwamba: How I harnessed the wind
05:59 Posted: Sep 2009
Views: 1,111,299 | Comments: 244