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Jonathan Foley: How to feed the world's people without destroying the planet

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Ben Cook's beef cattle
Beef cattle
Mark Steil | MPR News 2011

Jonathan Foley gives a 2014 Chautauqua Lecture about the challenges of feeding the world's people without destroying the planet. He says agriculture contributes more to climate change than anything else we do. It's also the biggest user of water and land. 

Foley is the executive director of the California Academy of Sciences. His presentation includes some sustainable solutions.