Many attribute the serious environmental movement to Rachel Carson's book Silent Spring.
Paul Erlich (biologist): People say, "well the population growth is slowing down, we are only going to add another 2.5 billion people." Well, 2.5 billion people is more than there were on the entire planet when I was born.
Stone's documentary was first screened at Sundance in early 2009 and includes the voices of scientists, congressman, an astronaut, and a former Secretary of the Interior.
S 24 : Ep 7
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S 24 : Ep 5
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S 24 : Ep 4
Aired 2/20/12 (53:00)
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