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Wilderness a cool resource

EarthTalk
According to The Wilderness Society, American forests capture about one-tenth of the greenhouse gases put out by U.S. cars, factories and other sources. Pictured: Rocky Mountain National Park in Colorado. Photo Courtesy Thinkstock

Dear EarthTalk: I understand that Congress passed legislation not too long ago that protected a few million acres of wilderness areas, parks and wild rivers, in part to help offset climate change. How does conserving land prevent global warming?

M. Oakes

Charlottesville, N.C.

The legislation in question is called the Omnibus Public Land Management Act. It was passed by both houses of Congress and signed into law by President Obama in the spring of 2009.

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