“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 talk on Plan B: Rescuing a Planet Under Stress & a Civilization in Trouble at Environment Canada Policy Research seminar series. French translation. [Note: http://www.ec.gc.ca/seminar/Brown_e.html no longer exists.]