This item the big ratchet how humanity thrives in the face of natural crisis by ruth defries hardcover 1620 in stock on june 13 2019 sold by yourcolors and ships from amazon fulfillment. The big ratchet how humanity thrives in the face of natural crisis cary institute of ecosystem studies loading unsubscribe from cary institute of ecosystem studies . To ask other readers questions about the big ratchet please sign up be the first to ask a question about the big ratchet the subject is interesting and the story of humanity does have some interesting bits that i hadnt fully grasped or pieced together before i read it that said i find the. This video is unavailable watch queue queue watch queue queue. The big ratchet how humanity thrives in the face of natural crisis a biography of an ingenious species ruth defries new york basic books a member of the perseus books group 2014
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