Add Yahoo as a preferred source to see more of our stories on Google. Green summer tundra and the rolling Mulgrave Hills in northwestern Alaska's Cape Krusenstern National Monument are seen on July 11 ...

The boreal forest, covering much of Canada and Alaska, and the treeless shrublands to the north of the forest region, may be among the worst impacted by climate change over the next 500 years, ...

Researchers at the University of Oulu, Finland, have observed significant vegetation changes in the treeless heath and tundra regions of northern Finland and Norway over recent decades, marked by the ...

Green summer tundra and the rolling Mulgrave Hills in northwestern Alaska's Cape Krusenstern National Monument are seen on July 11, 2011. The Mulgrave Hills are the farthest west extension of the ...