Huffington Post: Climate change has caused almost a third of the land cover in Canada and Alaska to go green, according to a NASA study.
Using 87,000 satellite images, researchers found there was extensive greening, or vegetation growth, between 1984 and 2012 in the western Alaska tundra and along the north and northeastern coast of Canada.
In the April report, NASA researchers say the most intensive greening was observed in Quebec and Labrador.
It's an "unmistakable" trend, researchers wrote.
In this...