WASHINGTON—The icy region at the top of the globe, lashed by wildfire and pelted with increasingly heavy precipitation, has tipped into “uncharted territory,” scientists reported Tuesday. The Arctic ...

The news that the frigid Arctic tundra ringing the polar region has switched from being a net absorber, or "sink," of planet-warming greenhouse gases to a net emitter, or "source," indicates the ...

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 ...

FAIRBANKS — The July 2007 tundra fire near the Anaktuvuk River was the largest such ever recorded, but that wasn’t the only thing that made it noteworthy. According to a new study published in the ...

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 ...

Local reindeer grazing history is an important determinant in the response of an ecosystem’s carbon sink to climate warming, say researchers. The significance of reindeer grazing history to tundra ...

Research from ancient sediment cores indicates that a warming climate could make the world's arctic tundra far more susceptible to fires than previously thought. The findings are important given the ...

I awoke staring up at the stretched plastic ceiling and wooden skeleton of our weatherized tent; an older model, its timber framing is the inspiration for the somewhat startling name “splinterhaven” ...

Jamie Sayen of Stratford is author of “You Had a Job for Life,” an oral history of the Groveton paper mill. Mount Washington’s summit region, an enchanting, wild, dangerous world, is home to the ...

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 ...

Beavers are marching north into the Arctic tundra, colonizing parts of Alaska and Canada and significantly altering the landscape. The report, Beaver Engineering: Tracking a New Disturbance in the ...

Research from ancient sediment cores indicates that a warming climate could make the world’s arctic tundra far more susceptible to fires than previously thought. The findings are important given the ...