Climate change to create farmland in the north, but at environmental costs, study reveals

PHYS ORG

High Alpine Tundra in Noatak National Preserve, Alaska. 
U.S. Fish & Wildlife Service.

In a warming world, Canada's north may become our breadbasket of the future - but this new "farming frontier" also poses environmental threats from increased carbon emissions to degraded water quality, according to the first-ever study involving University of Guelph researchers.  Story here.