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Ruth DeFries
Ruth DeFries is Denning Family Professor of Sustainable Development and Chair of the Department of Ecology, Evolution and Environmental Biology at Columbia University. A recipient of the MacArthur Genius” Fellowship, she lives in New York City.
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By the Author
The Big Ratchet
How an ordinary mammal manipulated nature to become technologically sophisticated city-dwellers -- and why our history points to an optimistic future in the face of…