Report: Warming bringing big changes to forests

Associated Press
Report: Warming bringing big changes to forests

This undated file photo from the Colorado State Forest Service shows pine trees killed by beetles near Grandby, Colo. The U.S. Department of Agriculture warns in a report released Tuesday that big changes are in store for the nation's forests as global warming increases wildfires and insect infestations, and generates more frequent floods and droughts. (AP Photo/Colorado State Forest Service, Jen Chase)

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