Since 2004 foresters in Alberta, Canada, have cut more than a million ... most patches of forest that are dominated by mature pine trees and thus highly susceptible to the beetles.

Tired of trimming every tree in your yard before ... as the Rocky Mountain white pine, limber pines are native to the Rocky Mountains in the western U.S. and Canada. They've been an important ...

Previous studies reported that in response to warmer temperatures, the mountain pine beetle has substantially increased its geographic range, killing trees 450 miles further north in Canada and 2,000 ...