Yereth Rosen

U.S. Interior Secretary Sally Jewell on Tuesday validated the 2008 sale of oil and gas leases in the Chukchi Sea , a decision that brings Royal Dutch Shell a step closer to winning approval of drilling in those remote Arctic waters...

Yereth Rosen

Among the insects abuzz at the end of Alaska's unusually warm winter is a fly previously undocumented in Alaska -- Pollenia , commonly known as the cluster fly.

Since mid-February, cluster flies have been showing up in abundant numbers on buildings at or near the Kenai National Wildlife Refuge headquarters in Soldotna, said Matt Bowser, an entomologist based at the refuge. He collected 35 specimens between mid-February and mid-March -- from building walls, from snow, from cobwebs and from various sunny surfaces -- and said many more were hanging around...

Yereth Rosen

Climate change in Northwest Alaska is good for the birds -- at least for some of them -- but bad news for several small mammals.

As shrubs and trees spread north with rising temperatures, so will some bird species. Tree-dwellers like northern goshawks are among the projected climate change winners listed in a new study predicting long-term changes in boreal and Arctic habitats used by 162 bird species and 39 land mammal species in Northwest Alaska...

Yereth Rosen

After an odd Alaska winter of record-warm temperatures and pouring rain instead of snow, will summer be weird as well?

While scientists say more such winters can be expected in Alaska in the long term as the climate heats up, predicting what will happen in the short term is iffy. Still, resource managers are making some contingency plans for a challenging summer, and scientists have some advice in case the next few months are as unusual as the last few...

Yereth Rosen

Winter Arctic sea ice extent this year was the lowest in the satellite record, the National Snow and Ice Data Center said on Thursday , confirming a prediction it made two weeks ago.

Peak winter extent was reached on Feb. 25, with 5.61 million square miles of Arctic waters having at least 15 percent ice coverage, the center said. That maximum was about 7 percent smaller than the average winter maximum of 6.04 million square miles recorded from 1981 to 2010, the center said...

Yereth Rosen

As Arctic commerce heats up, more ships are expected to pass by the Aleutian Islands, through the Bering Strait and north into the Chukchi Sea. The U.S. Coast Guard, which is assessing a possible designated Arctic shipping route in those waters, has teamed up with the National Oceanic and Atmospheric Administration to improve navigational knowledge about that region.

For NOAA, that means using the Coast Guard’s help to update navigational charts that date back as far as a century ago...

Yereth Rosen

Alaska’s senators split on a controversial Republican letter to Iranian government leaders that cast doubt on any potential nuclear agreement with the Obama administration.

Sen. Lisa Murkowski was among the seven Republican dissenters who declined to sign the letter, which was led by freshman Sen. Tom Cotton of Arkansas and signed by 47 members, all Republicans.

Murkowski is supporting an effort by Sen. Bob Corker of Tennessee that would give the Senate authority to review any agreement with Iran and approve or reject it...

Yereth Rosen

Arctic sea ice coverage appears headed for a record-low winter maximum this year, and the annual melt appears to be off to a very early start, according to information from the ...

Yereth Rosen

In the Arctic Ocean, first-year ice -- the thinner and flatter layer that freezes in the winter but melts each summer – is where much of the climate change action happens...

Yereth Rosen

Glacier Acoustics Project from Hilary Hudson on Vimeo

The noisiest places found yet in the world’s oceans are some of the most scenic -- saltwater fjords where glaciers drop chunks of blue-white ice, according to newly published research .

The noise was found mostly at Icy Bay, along the Gulf of Alaska coast, but also at two other sites where calving glaciers are depositing ice into marine waters...

Yereth Rosen

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