By Bob Janiskee Scientists working in Denali National Park suspect that permafrost melting that’s caused by climate warming might be an important reason why many of Alaska’s shallow lakes and wetlands have shrunk or disappeared. If the trend continues, wetland-dependent wildlife might be severely impacted. … Bush pilots and others familiar with the black spruce […]
You must go back 15 million years to find carbon dioxide levels as high as they are today, Earth scientists report. “The last time carbon dioxide levels were apparently as high as they are today and sustained at those levels, global temperatures were five to 10 degrees Fahrenheit higher than they are today,” said Aradhna […]
By Yereth Rosen ANCHORAGE, Alaska (Reuters) – Oil companies scouring the coastline of Alaska’s North Slope for new production sites are converging on the same territory as hungry polar bears trying to escape shrinking and thinning sea ice. Polar bears have not attacked any workers recently, but oil companies are reporting four times as many […]
By MARY PEMBERTON, Associated Press Writer ANCHORAGE, Alaska — A government study found that a group of endangered beluga whales in Alaska is declining, raising concern that bolstered protection for the animals is not coming quickly enough. The downward trend comes after two years where numbers for the Cook Inlet belugas appeared to have stabilized. […]
Media Relations Contact: Katherine Leitzell, NSIDC: leitzell@nsidc.org or +1 303.492.1497. This is a press release from the National Snow and Ice Data Center (NSIDC), which is part of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado at Boulder. At the end of the Arctic summer, more ice cover remained […]
By Yereth Rosen ON BOARD COAST GUARD FLIGHT ABOVE BEAUFORT SEA, Oct 2 (Reuters) – Out in the Arctic Ocean, about 200 miles (322 km ) north of the nearest human settlement, the future of the world’s climate is written in the patterns of ice patches on the water’s surface. Old, “multiyear” ice — the […]
The Arctic Ocean is becoming acidic so quickly that it will reach corrosive levels within 10 years, a leading scientist has warned. By Matthew MoorePublished: 4:33PM BST 04 Oct 2009 Waters around the North Pole are absorbing carbon dioxide at such a rate that they will soon start dissolving the shells of living sea creatures. […]
By Dan Joling, Associated Press ANCHORAGE, Alaska — Trampling likely killed 131 mostly young walruses on the northwest shore of Alaska, according to an examination by an investigative team that included federal scientists. Young animals can be crushed in stampedes when a herd is startled by a polar bear, human hunters or even a […]
The recent observed collapse in the population cycles of small rodents, shown here for lemmings in northeast Greenland, as a result of diminished snow cover in the Arctic [from O. Gilg, B. Sittler, I. Hanski, Glob. Change Biol. 10.1111/j.1365-2486.2009.01927.x (2009)]. Eric Post, et al., Ecological Dynamics Across the Arctic Associated with Recent Climate Change, Science, […]
Reductions in terrestrial snow cover (blue) and sea ice (red) extent during June to August over the Northern Hemisphere since the late 1960s and 1970s, respectively. Data are from the Global Snow Lab, Rutgers University, New Jersey, and the U.S. National Snow and Ice Data Center, University of Colorado, Boulder. Eric Post, et al., Ecological […]
