The greatest challenge in the next 100 years is food security. In this future-looking talk, Dr. Barry Dunn illuminates the challenge of feeding the world's population, and how it can be done.

Barry Dunn is a cowboy and the Dean of the College of Agriculture and Biological Sciences at South Dakota State University. From 2004-2010, Dunn served on the faculty of the Texas A&M system, developing a Ranch Management graduate program in cooperation with King Ranch of Kingsville, Texas. He continues to farm and raise cattle on a family farm in Brookings, SD.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx