correctionAn earlier version of this article incorrectly stated the degrees Fahrenheit when converted from Celsius for warmer summer temperatures. This version has been corrected. What comes to mind ...

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 ...

Tundra plants can eek out an existence in the very short summers of the Canadian High Arctic such as here on Ellesmere Island, Nunavut. (Anne Bjorkman, University of Gothenburg) Rapid climate change ...

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 ...

Climate change is warming the Arctic tundra about four times faster than the rest of the planet. Now, a study suggests that rising temperatures will spur underground microbes there to produce more ...

Northern Alaska, long viewed as a frozen buffer against fire, is now breaking records that reach deep into prehistory. New ...

Chunks of carbon-rich frozen soil, or permafrost, undergird much of the Arctic tundra. This perpetually frozen layer sequesters carbon from the atmosphere, sometimes storing it for tens of thousands ...

For weeks, wildfires have raged across Alaska’s vast Southwest region — threatening villages, burning up hundreds of thousands of acres and pushing smoke far across the state. Fire on the Southwest ...

Beavers are taking over the Alaskan tundra, completely transforming its waterways, and accelerating climate change in the Arctic. The changes are so sudden and drastic that they're clearly visible ...

ANCHORAGE, Alaska (Reuters) - A wildfire that burned over 400 square miles of Alaska tundra in the scorching summer of 2007 poured as much carbon into the atmosphere as the entire Arctic normally ...