Environmentalist Lester Brown lays out his plan for saving the planet
Lester Brown is the author of a new book, "Plan B 4.0: Mobilizing to save Civilization."
Courtesy of Earth Policy Institute
Lester Brown, a longtime leader in the environmental movement, discusses climate change, food security, and energy policy. He is out with a new book titled, "Plan B 4.0: Mobilizing to Save Civilization."
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