Mar 27, 2014-- When wolves were reintroduced to Yellowstone National Park in the United States after being absent for nearly 70 years, the most remarkable "trophic cascade" occurred. What is a trophic cascade and how exactly do wolves change rivers? British environmental journalist George Monbiot explains in this video remix by Sustainable Man. (12292 reads)
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The winds of grace are always blowing, but it is you that much raise your sails.
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