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The clouds of black carbon soiling snow and ice in Finland’s Arctic region have diminished significantly since the middle of the 20th century, a change attributed to the collapse of the Soviet Union and the cessation of some of the most polluting industrial practices in northwestern Russia, according to a new study published in the Journal of Geophysical Research.Yereth Rosen
The red king crab that wasn't red appeared in Nome on Fourth of July.  Devin Kelly
A study that examined the accuracy of counting polar bears by helicopter versus satellite tracking of the bears found that each method resulted in similar counts of the notoriously difficult-to-pin-down populations.Yereth Rosen
The Next-Generation Ecosystem Experiments project, based in Barrow, helps collect Arctic data that will be useful to scientists studying the region from around the world.Jillian Rogers
Veteran Alaska wildlife biologists who remember the 1972 incident, in which dozens of animals were killed, say nothing like it has happened since.Ned Rozell
Though many of the lakes that dot Alaska's North Slope are so similar that no one has ever bothered to name them, there are differences of great consequence between the bodies of water, especially if you're a loon or a fish residing in the area.Yereth Rosen
Millions of years ago, glacial ice flowing north across the Alaska Range scoured the broad, almost flat valleys through which the Nenana and Delta rivers flow today, heading north. Ned Rozell
The rapid late-month melt in June was noteworthy, said Mark Serreze, director of the National Snow and Ice Data Center. “But will we continue at this fast pace? We don’t know. July, the month of peak melt, will be telling.”Yereth Rosen
The U.S. Department of Defense has 550,000 facilities covering 28 million acres, with an estimated value of about $850 billion, which means it could see big costs associated with the impacts of climate change, according to a new report from the Government Accountability Office.Yereth Rosen
State and federal scientists are testing a CSI-style approach that promises to deliver important new data on one of Alaska’s most closely-watched wolf populations. After decades of flying circles just above the trees and fitting wolves with tracking collars, researchers are letting the animals come to them.Kyle Hopkins