Christian Science Monitor: The amount of land in the high Arctic covered by trees and upright shrubs could increase by up to 52 percent by midcentury, warming the region to levels climate scientists had previously not expected to see there until 2100.
That's the take-home message from a new study that looks at statistical ties between climate and vegetation types to estimate how the Arctic's landscape could change with global warming. The impact of the vegetation changes on the region's climate not only would be felt at...