As Alaska warms and permafrost thaws, the chemistry of the Yukon River's water is transforming chemically, new research from the U.S. Geological Survey shows.
Canadian researchers learned that local Inuvialuit hunters had spotted beavers in the region in 2008 and 2009. Those sightings are the first documented signs of North American beaver occupancy on the Beaufort coastal plain.
New research shows that permafrost soils hold massive quantities of mercury — nearly twice as much as is held in all other soils in the world, plus the mercury in the oceans and the atmosphere —
The notoriously difficult-to-study Pacific walrus population decreased by about half between 1981 and 1999, likely due to hunting and changes to sea-ice habitat, according to a new USGS study that is considered the most up-to-date and comprehensive so far. The Pacific walrus is being considered for Endangered Species Act protections.
A new study quantifies the rate at which Eklutna Glacier is losing its icy mass. Between 1957 and 2010, the loss of glacier mass averaged 5 percent a year.
The elusive animals use snow caves to give birth and nurture their young. Just how much spring snow they need is not yet known.
Elodea, an aggressive invasive plant, was discovered this month in the lake used by hundreds of floatplanes, raising fears that it will be spread to multiple sites within flying reach.
For decades, the crowds of small, dark sea geese on the tundra of southwestern Alaska's Yukon-Kuskokwim Delta have been thinning, a situation opposite that of geese on the North Slope.
Vitamin D deficiencies have long been a concern in high latitudes because sunlight — which stimulates its production in the body — is scarce in winter months.
A mysterious disease, possibly a virus, has afflicted ring seals along Alaska's coast, killing scores of them since July, local and federal agencies said on Thursday.
An enzyme protects squirrels during and after hibernation, and something similar could help people whose hearts shut down, a new study finds.
Interior Alaskas hot and dry summer of 2013, coupled with an invasion of insect pests, has taken a steep toll on the regions birch trees, experts say.
Air emissions from Prudhoe Bay-area oil fields can have a big influence on the particles in the air in Utqiaġvik, the town formerly known as Barrow.
The animals didn't necessarily become sick, researchers said, but were encountering the new pathogens much more frequently.
Disaster funds are reserved for single events, and storms that collectively cause much damage aren't often individually large enough to count as disasters.
Elodea, a fast-growing leafy plant, is now in a roadside ditch at the marsh, and a response plan is in the works.
Arctic sea ice last month reached its greatest extent for the season, and it was the lowest in the satellite record. Now researchers say that ice is also younger and thinner than it once was.
The storm dropped more than a foot of snow overnight in some places, making for a messy Thursday morning commute. And the nor’easter isn’t gone yet.
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