TED Radio Hour
July 17, 2015
Ecologist Jon Foley says agriculture is the "most powerful force unleashed on this planet since the end of the ice age." He says we're using too much to irrigate and we have to rethink how we farm.
An idea is the one gift that you can hang onto even after you’ve given it away. The TED Radio Hour, hosted by Guy Raz, is a journey through fascinating ideas: astonishing inventions, fresh approaches to old problems, new ways to think and create.