Climate change threatens global food supply

The global food supply faces a new threat: climate change.

Extreme weather like the massive floods that hit the Midwest during planting season and the severe drought in Somalia this year are becoming more and more frequent.

Even as farmers face new challenges from climate change, they’re also part of the problem. Agriculture generates about a quarter of manmade greenhouse gas emissions.

On this edition of Global Journalist - a look at the relationship between agriculture and climate change, with views from Brazil, Guatemala, Honduras and the U.S.

Joining the program:

• Bruce McCarl, member of the U.N. Intergovernmental Panel on Climate Change and professor of agricultural economics, Texas A&M University
• Rhett Butler, founder, MongaBay.com
• Edwin Castellanos, member of the U.N. Intergovernmental Panel on Climate Change and dean of research at Universidad del Valle de Guatemala
• Georgina Gustin, reporter, InsideClimate News

Producers: Trevor Hook, Edom Kassaye

Visual editors: Benjamin Brink, Kyle McCubbin