Foreboding environmental milestones abounded again this year in the Arctic, where experts say dramatic climate shifts are fundamentally altering the ecosystem and how it operates. One recent turning ...

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 Arctic is not just warming - it is unraveling. " What makes this so alarming is that these feedback loops don't operate in isolation. They interact, stack on top of each other, and in many cases, ...

Modelling climate change over a 500 year period shows that much of the boreal forest, the Earth's northernmost forests and most significant provider of carbon storage and clean water, could be ...

Add Yahoo as a preferred source to see more of our stories on Google. Foreboding environmental milestones abounded again this year in the Arctic, where experts say dramatic climate shifts are ...

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, ...