Jonathan Foley's Chautauqua Lecture on agriculture's role in climate change

Cattle
Cattle on a farm near Lismore, Minn.
MPR Photo/Mark Steil

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, and he presents some sustainable solutions.