“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 at the Smithsonian Limits to Growth Symposium
March 28, 2012
Lester Brown speaks as a keynote at the 2012 Limits to Growth Symposium hosted at the Smithsonian. Posted March 28, 2012.