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“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 Citizens Climate Lobby National ConferenceJuly 14, 2010
Watch Lester Brown's speech at the CCL National Conference, discussing Plan B 4.0: Mobilizing to Save Civilization. Posted July 8, 2010.
