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The Omnivore's Dilemma: A Natural History of Four ... |
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| Michael Pollan |
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An Inconvenient Truth: The Planetary Emergency of ... |
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| Al Gore |
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Earth in the Balance: Ecology and the Human Spirit |
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| Al Gore |
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Bird Songs |
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| Les Beletsky, Jon L. Dunn |
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Worldchanging: A User's Guide for the 21st Century |
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| Alex Steffen, Al Gore, Bruce Sterling |
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The Five People You Meet in Heaven |
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| Mitch Albom |
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The Worst Hard Time: The Untold Story of Those Who... |
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| Timothy Egan |
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Collapse: How Societies Choose to Fail or Succeed |
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| Jared Diamond |
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Sierra Club 2007 Wilderness Calendar |
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| Sierra Club |
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The Selfish Gene: 30th Anniversary Edition--with a... |
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| Richard Dawkins |