Emma Marris on her book "Rambunctious Garden: Saving Nature in a Post-Wild World."

Host Gene Bradley speaks with Emma Marris, author of "Rambunctious Garden: Saving Nature in a Post-Wild World."  In her book Marris interviews leading scientists and environmentalists and visits imaginary Edens, designer ecosystems, and Pleistocene parks. She contends that we must replace our desire for an unattainable Eden with a more practical dream: a global, half-wild, "rambunctious garden" planet, tended by us.

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