A NOAA Ocean Exploration-led team has discovered what appears to be evidence of a large gas seep at a depth of nearly 1.4 miles (2,300 meters) along the Aleutian Trench. The discovery was found in data collected during the Seascape Alaska 1: Aleutians Deepwater Mapping expedition.

Alaska is considered to be outside the range of cougars (also called mountain lions and panthers), but with cougar populations increasing in many western states and Canada, that could change.

Large numbers of salmon straying from hatcheries in Southeast Alaska, as well as a low river flow, helped create lethal environments for wild salmon, according to a new report.

Is climate change reducing the quantity and quality of Alaska's Dall sheep habitat? That's the hypothesis being tested by two researchers.

Experts say brown or grizzly bears attack and kill people far more often in Alaska than black bears. Authorities say black bears killed a 16-year-old runner at Bird Ridge over the weekend and a Pogo Mine contractor Monday.

Alaska Division of Forestry spokesman Norm McDonald said the 2-acre fire's exact cause has not been determined but is suspected to be similar to that of four smaller Mat-Su wildfires earlier Thursday. Those blazes were tracked to backfires from a white Chevrolet pickup truck.

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 bear got into the facility through a door trucks use to access the building, a USPS spokeswoman said.

Skagway set an all-time record high temperature of 93 degrees, and other records were broken across Southeast Alaska.

Residents who have long depended on chinook salmon to fill drying racks and smokehouses are worried about their food for next winter.

Sea star wasting disease, a type of densovirus, reduced the count of sea stars in Kachemak Bay from 180 last spring to a measly five this year.

The 2007 fire was probably the first for that area in 6,500 years, according to scientific evidence examined later, Higuera said. But the wait for the next big burn won't be nearly as long, according to the evidence gathered in the study.

The declaration gives the far-north community of Utqiagvik access to state money to help repair damaged infrastructure like roads.

About a year ago, Tununak opened a $19 million, state-of-the-art airport, but shifting permafrost is buckling the runway.

Beetles that killed millions of acres of trees in the 1990s were a first sign of climate change. In a new flare-up, they continue marching north as Alaska warms.

Several hundred Pacific walruses have started to gather on an island off the northwest coast of Alaska — the earliest the animals have been observed leaving the water for the annual ritual, according to federal wildlife officials.

To varying degrees, nearly the entire state was warmer than normal this July, according to a weather expert.

The country's 3,300 miles of ice roads are a lifeline for marooned communities during frigid winters, but climate change is making the roads unsafe much earlier.

For the second time in three years, the Iditarod Trail Sled Dog Race will move its official start from Willow to Fairbanks due to poor trail conditions that race officials determined unsafe.

Environment Canada is confirming a weak tornado that hit Fort St. John last month. The tornado was generated by a severe thunderstorm Aug.