“4.0 is the best yet! If there are planetary heroes, you are top of my list.” –David Orr, Oberlin College on Plan B 4.0: Mobilizing to Save Civilization.
Lester Brown, president of the Earth Policy Institute, discusses the outlook for global food production and potential implications for the world's population. Brown speaks with Carol Massar and Matt Miller on Bloomberg Television's "Street Smart." Posted February 9, 2011.