Ruth DeFries has written at least 2 books. Their most popular book is The Big Ratchet: How Humanity Thrives in the Face of Natural Crisis: A Biography of an Ingenious Species with 3 saves with an average rating of -⭐.
2014 • 3 Readers • 290 pages
2020 • 1 Reader • 256 pages
2014 • 1 Reader
2015 • 1 Reader • 32 pages