“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 WWF Fuller Symposium
December 13, 2011
Lester Brown speaks as a keynote at the 2011 WWF Fuller Symposium. Posted December 13, 2011.