Warming global climate is changing the vegetation structure of forests in the far north. It's a trend that will continue at least through the end of this century, according to NASA researchers. The ...

Stand on the tundra in Alaska and it looks like nothing special. A vast, flat plain of amber grass, shallow ponds, and dark soil stretching to the horizon. No obvious drama, no visible crisis. But a ...

The change from grasses and sedges to larger, woody-stemmed shrubs, called shrubification, has already had an impact on caribou herds which normally feed on grass, herbs, and lichens. There have been ...

A lightning-sparked fire that has burned about 2,000 acres of Arctic Alaska tundra is the biggest wildfire on the North Slope in eight years. The Ikpikpuk Fire, which bears the name of a 195-mile ...

A new international study involving researchers from the University of Gothenburg shows that vegetation in the Arctic is changing rapidly as species from nearby forests spread into the tundra. This ...

The Western Arctic Caribou Herd, once the biggest in Alaska, is faltering, having fallen from a high of 490,000 animals in 2003 to only 152,000 as of 2023. But to the east, the Porcupine Caribou Herd ...