The largest tract of public land in the United States is a wild expanse of tundra and wetlands stretching across nearly 23 million acres of northern Alaska. It’s called the National Petroleum Reserve ...

Beaver expansion into Alaska’s Arctic tundra presents problems for people, but also opportunities A wide-ranging research program led by a UAF ecologist is tracking the way beavers’ northward ...

Tundra swans — at 15 pounds and with a wingspan of almost 6 feet — are now touching down on the ponds and snowfields of Alaska. Not too long ago, Alaska scientists discovered more about where ...

The Arctic permafrost region as a whole — which encompasses tundra and forests — has become carbon neutral over the past 20 years, meaning it’s neither absorbing nor releasing excess CO2 ...

Arctic tundra, which has stored ... Wildfire in Alaska’s Yukon Flats National Wildlife Refuge, June 2024. (Courtesy Brendan Rogers/Woodwell Climate Research Center) ... Map of the Arctic.

For millennia, the tundra regions of the Arctic drew in carbon from the atmosphere and locked it in permafrost. That is the case no more, according to an annual report ...

Arctic permafrost is a vast repository, storing an estimated 1,700 billion metric tons of carbon. That’s over 50 times more than all the carbon released as global fossil fuel emissions in 2019.

Arctic permafrost is a vast repository, storing an estimated 1,700 billion metric tons of carbon. That’s over 50 times more than all the carbon released as global fossil fuel emissions in 2019.

The Arctic tundra is warming up and that's causing long-frozen ground to melt as well as an increase in wildfires. The region is "now emitting more carbon that it stores, which will worsen climate ...

A beaver is seen on June 12, 2018, swimming in a tundra pond in the Nome area. As the climate has warmed, beavers have moved north into tundra terrain in both Alaska and Canada. A National Science ...