Black-Market Marijuana Farming Is Far From Green

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07/31/2015

Jul. 31, 2015

Black-Market Marijuana Farming Is Far From Green

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Some 60 to 70 percent of the marijuana consumed in the United States comes from California—and a lot of it is grown outdoors in the so-called "Emerald Triangle" region north of San Francisco. Jennifer Carah, an ecologist at The Nature Conservancy, says illegal pot farms in the region are repeating many of the environmental sins of the logging era, like clear-cutting and road building, which contribute to erosion that chokes streams and rivers. The growers also pump streams dry and widely apply pesticides and herbicides, which Carah and her colleagues say is contributing to the decline of already rare species like Pacific fishers (Pekania pennanti) and coho salmon (Oncorhynchus kisutch).

Produced by Christopher Intagliata, Senior Producer

Guests

Jennifer Carah
Ecologist in the water program
The Nature Conservancy
San Francisco, California

Discussion

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