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11 things you thought were green -- but there's a catch

Fake fur

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Fake fur

Wearing fur has been demonized by animal rights activists, but sometimes the substitute can be just as bad. Most fake fur is made of synthetic fibers constructed from blends of acrylic and modacrylic polymers derived from coal, air, water, petroleum and limestone. Like most plastics, fake fur also doesn't biodegrade easily. Besides, there are a lot of other ways to look posh and stay warm.