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New PBS Series Focuses On Our Energy History, Looks Ahead To Future

March 24, 2011 10:48 a.m.

How can we make a sustainable energy future if we don't know the history of our energy consumption? We speak to Glaciologist Dr. Richard Alley about the new PBS series "Earth-The Operators' Manual."

Related Story: New PBS Series Focuses On Our Energy History, Looks Ahead To Future