What’s it going to take to feed an additional 2 billion people, the forecast global population of 2050? And what does it mean for the climate when many of them will want to eat steak?

James Gerber, co-director of the Institute on the Environment’s Global Landscapes Initiative, thinks a lot of it will depend on what we eat. Earlier this month he talked with WTIP North Shore Community Radio about how our food choices affect the environment.

Photo by debibishop (iStock)