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Yereth Rosen

Along with increasing sea levels, melting glaciers are putting something else into the world’s oceans -- a huge load of organic carbon that has the potential to change marine chemistry and ecosystems, says a newly published study by a team of mostly Alaska scientists.

By 2050, the cumulative global load of organic carbon swept into the sea by glacial melt -- the of bits of old flora and fauna and their byproducts that have been absorbed, covered or ground up by the moving ice -- is expected to be 48 million metric tons according to the study, published Monday in the journal Nature Geoscience ...

Yereth Rosen

A stained and torn navigational chart donated two years ago to a museum in Maine turns out to be a document used on an infamous and ill-fated Arctic exploration voyage a century ago, experts say.

The chart, of the marine areas in western Alaska and adjacent parts of Russia, has been confirmed as an item used by Robert Bartlett , captain of the Karluk, a ship that was the center of a 1914 wreck off the Siberian coast, said officials at the Peary-MacMillan Arctic Museum and Arctic Studies Center at Bowdoin College...

Yereth Rosen

With the United States on the verge of leading the eight-nation Arctic Council and far-north climate warming continuing at twice the global rate , President Barack Obama on Wednesday issued an executive order to better manage federal Arctic policy. But one U.S. Senator from Alaska expressed doubts about the order's effectiveness...

Yereth Rosen

For some northerners, there is reason to cut down on sugar that has nothing to do with New Year’s resolutions: A genetic intolerance to sugar is hardwired into the DNA of some Arctic peoples.

A newly identified gene in the Canadian Inuit population is responsible for a condition that makes it difficult or even impossible for the body to digest sugar.

The condition, congenital sucrase-ismaltase deficiency, or CSID, affects only 0.2 percent of North Americans of European ancestry, but has a much higher prevalence among people indigenous to the far north...

Yereth Rosen

In the planet’s hottest year on record , warming was especially dramatic in Alaska, federal scientists reported.

The past year -- Alaska’s warmest since records began in 1918 -- the average temperature was 4.04 degrees Fahrenheit above the average posted from 1971 to 2000, according to the National Climatic Data Center at the National Oceanic and Atmospheric Administration.

Some notable Alaska weather was recorded just last month, the National Climatic Data Center said in its annual national report ...

Yereth Rosen

Polar bears are relocating from ice-sparse parts of the Arctic to the Canadian Archipelago, an area with more dependable summer and fall sea ice, says a new study that tracked the animals’ gene flow.

The study, published Tuesday in the journal PLOS ONE , examined DNA from about 2,800 polar bears. Samples were in the form of tissue or hair taken from polar bears in all of the countries where the animals live.

The population shift has been recent -- happening in just the past one to three generations, or 15 to 45 years, said lead author Lily Peacock, a U.S. Geological Survey wildlife biologist...

Yereth Rosen

Six years after dropping more than $2 billion on leases in the remote Chukchi Sea off northwestern Alaska, Shell has yet to drill into any oil in that icy frontier.

Plans for an audacious offshore Arctic exploration program have been stymied by litigation and adverse court rulings and a string of accidents, mishaps, mistakes and some legal violations...

Yereth Rosen

Privately held Hilcorp Energy Company has submitted a new plan to federal regulators for developing the long-languishing Liberty prospect, one of several assets that the Houston-based company acquired from BP.

The U.S. Bureau of Ocean Energy Management said Tuesday its Alaska regional office received Hilcorp Alaska LLC’s development and production plan for Liberty, located in federal territory of the Beaufort Sea outercontinental shelf.

The plan envisions developing Liberty from a gravel island to be built in the Beaufort’s shallow waters, BOEM said in a brief statement...

Yereth Rosen

Alaskans are three times as likely as Americans as a whole to know about ocean acidification and be worried about it, but are hazy on the scientific process that is changing the chemistry of the oceans, according to a newly published study by researchers from the University of Alaska Fairbanks and the National Oceanic and Atmospheric Administration...

Yereth Rosen

The National Weather Service has confirmed it: This has been an unusually warm winter so far, at least in Anchorage and Fairbanks.

In Anchorage, there has been only one day since the beginning of November -- 19 degrees measured Nov. 27 -- on which the daily average temperature slipped below the normal average of 21 degrees, according to official Weather Service records .

The average Anchorage temperature from Nov. 1 through Dec. 23 was 29.3 degrees, the second warmest on record for that time period, the Weather Service's Alaska region headquarters said on its Facebook page ...

Yereth Rosen

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