Why is Greenland’s ice sheet melting? Scientists say nighttime clouds act as a blanket to prevent warm air from escaping. Scientists say new satellite data will help improve future climate models to better inform policy decisions. Clouds play an important role in melting Greenland’s ice sheet, say scientists.
Rising global temperatures may be affecting the Greenland ice sheet – and its contribution to sea-level rise – in more serious ways that scientists imagined, a new study finds. Recent changes to the island’s snow and ice cover appear to have affected its ability to store excess water, meaning more melting ice may be running off into the ocean than previously thought.
via Washington Post
Arctic permafrost has become a discussion point in the climate change debate because of the large amounts of carbon dioxide and methane that are released when it thaws. Rising temperatures in the Arctic are concerning for scientists, who are worried that thawing permafrost will become a major contributor to global emissions of greenhouse gases, writes The Washington Post.
via Design & Trend
From his seat in the small plane flying over the largest remaining swath of American wilderness, Bruce Babbitt thought he could envision the legacy of one of his proudest achievements as Interior secretary in the Clinton administration.
President Obama will appear Thursday night on the NBC reality show ” Running Wild with Bear Grylls.” The episode, which was filmed in September, follows the president on a walking tour with wilderness survival expert Bear Grylls around Alaska’s shrinking Exit Glacier. It airs on NBC Dec. 17 at 10 p.m.
Watch Running Wild with Bear Grylls “President Barack Obama” episode (Season 2, Episode 9) on NBC.com
For the first time, climate researchers from the Centre for GeoGenetics at the Natural History Museum of Denmark, together with a national and an International team of researchers, have pubished in the scientific journal Nature their direct observations of the reduction and melting of the Greenland Ice Sheet during the latest 110 years.
This massive retrogressive thaw slump in the foothills of the Richardson Mountains near Fort McPherson, NT will soon catastrophically drain this lake
Using statistically modeled maps drawn from satellite data and other sources, U.S. Geological Survey scientists have projected that the near-surface permafrost that presently underlies 38 percent of boreal and arctic Alaska would be reduced by 16 to 24 percent by the end of the 21st century under widely accepted climate scenarios.
Rapid drainage of a small lake due to expansion of a retrogressive thaw slump about 20km northwest of Fort McPherson, Northwest Territories, Canada.