An ancient jawbone has led scientists to believe that polar bears survived a period thousands of years ago that was warmer than today. Sandra Talbot of the USGS Alaska Science Center in Anchorage was one of 14 scientists who teamed to write a paper based on a polar bear jawbone found amid rocks on a […]
ALAMEDA, Calif. — U.S. Coast Guardsmen and U.S. Navy sailors conducted shipboard dive operations from a Coast Guard cutter in the Arctic July 29 for the first time since two Coast Guard divers perished in a subsurface accident almost 11 years ago. Shipboard Arctic dive operations increase the Coast Guard’s ability to assure year-round access […]
On the North Slope of Alaska, snow is melting earlier in the spring and the snow-in date is happening later in the fall, according to a new study by Cooperative Institute for Research in Environmental Sciences (CIRES) and National Oceanic and Atmospheric Administration (NOAA) researchers. Atmospheric dynamics and sea ice conditions are behind this lengthening […]
Earlier this year Arctic sea ice sank to a record low wintertime extent for the third straight year. Now NASA is flying a set of instruments north of Greenland to observe the impact of the melt season on the Arctic’s oldest and thickest sea ice. Operation IceBridge, NASA’s airborne survey of polar ice, launched a […]