"Attention has focused on oil insecurity, and rightly so, but it is not the same as food insecurity. An empty gas tank is one thing, an empty stomach another. And while there are substitutes for oil, there are none for food." –Lester R. Brown, Plan B 4.0: Mobilizing to Save Civilization.
Minnesota Public Radio podcast, "Environmentalist Lester Brown Lays Out His Plan for Saving the Planet," of Brown's presentation at the University of Minnesota on Monday, November 16, 2009. Broadcast November 17, 2009.