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Tag: antarctic
Antarctic Melt Surges Sea Level in Climate Change Recalculation
2016-03-31 13:07:00| Climate Ark Climate Change & Global Warming Newsfeed
Newsmax: Climate scientists at two U.S. universities said the most recent U.N. report issued in 2013 on the effects of global warming had missed the real rate at which the ice covering the continent would melt, reported Reuters. That 2-year-old report said the worst case of man-made climate change would mean a sea-level rise of between 52 and 98 cm by 2100. The new study suggests the real rise could be 1.5 meters (5 ft), posing an even greater threat to cities from New York to Shanghai. "This could...
Tags: change
level
sea
climate
Study: Antarctic ice may melt faster than expected
2016-03-31 10:59:00| Climate Ark Climate Change & Global Warming Newsfeed
Associated Press: Warmer air, less frigid water and gravity may combine to make parts of Antarctica's western ice sheet melt far faster than scientists had thought, raising sea levels much more than expected by the end of the century, according to a new study. New physics-based computer simulations forecast dramatic increases in melting in the vulnerable western edge of the continent. In a worst case scenario, that could raise sea level in 2100 by 18 to 34 inches (46 to 86 centimeters) more than an international...
Tags: study
expected
ice
faster
Ocean warming threatens stability of Antarctic ice shelves
2016-03-30 15:08:08| Climate Ark Climate Change & Global Warming Newsfeed
Discover: The Getz Ice Shelf extends several miles into the ocean along the western Antarctic coast. The vertical face of the ice shelf is almost 200 feet high and is estimated to extend another 1,000 feet below the ocean surface. This photo was taken from a NASA DC-8 by Ted Scambos, Lead Scientist at the National Snow and Ice Data Center. Note: Thanks to a spring-break getaway, I`m just now catching up to this new research showing that warming ocean waters are threatening the stability of giant, floating...
Tags: ice
ocean
warming
stability
Warming ocean water undercuts Antarctic ice shelves
2016-03-14 10:53:00| Climate Ark Climate Change & Global Warming Newsfeed
EurekAlert: "Upside-down rivers" of warm ocean water threaten the stability of floating ice shelves in Antarctica, according to a new study led by researchers at the University of Colorado Boulder's National Snow and Ice Data Center published today in Nature Geoscience. The study highlights how parts of Antarctica's ice sheet may be weakening due to contact with warm ocean water. "We found that warm ocean water is carving these 'upside-down rivers,' or basal channels, into the undersides of ice shelves all...
Antarctic ice sheet is more vulnerable to carbon dioxide than expected
2016-02-23 01:01:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Results from a new climate reconstruction of how Antarctica's ice sheets responded during the last period when atmospheric carbon dioxide (CO2) reached levels like those expected to occur in about 30 years, plus sediment core findings reported in a companion paper, suggest that the ice sheets are more vulnerable to rising atmospheric CO2 than previously thought. Details appear in two papers in the current Proceedings of the National Academy of Sciences. Researchers led by Edward Gasson and...
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