The Arctic is rapidly changing from the climate crisis, with no "new normal," scientists warn. Wildfires and permafrost thaw are making the tundra emit more carbon than it absorbs. From beaver ...

A new study highlights the importance of caribou and muskoxen to the greening Arctic tundra, linking grazing with plant phenology and abundance in the Arctic tundra. The story of Arctic greening has ...

Bristol Bay experienced its largest wildfire season on record last year, underscoring a trend toward bigger and more numerous fires in southwest Alaska as the climate warms. “We really have not seen ...

In early morning at Little Swamp Sanctuary in western Midland County, we can see the far shore of the wetland, almost one half mile away, through a path of trimmed open space where we have a seep or ...

A pair of beavers work over some branches in shallow water south of Glennallen in central Alaska. (Courtesy Ken Tape) Beavers are moving into the Arctic. Scientists at the University of Alaska ...

Change detection studies using remote sensing and plot-based sampling show that Arctic vegetation is changing. Most studies have focused on the proliferation oftall shrubs, but increased productivity ...

BROWNSVILLE, Minn. - On a blustery mid-November day, one that yielded the first significant snowfall of the season, you might expect things to be still and quiet on the Mississippi River near ...

1. Plant communities in natural ecosystems are changing and species are being lost due to anthropogenic impacts including global warming and increasing nitrogen (N) deposition. We removed dominant ...