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Antarctic ice study reveals accelerated sea level rise
2014-03-30 15:31:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: Six massive glaciers in West Antarctica are moving faster than they did 40 years ago, causing more ice to discharge into the ocean and global sea level to rise, according to new research. The amount of ice draining collectively from those half-dozen glaciers increased by 77 percent from 1973 to 2013, scientists report this month in Geophysical Research Letters, a journal of the American Geophysical Union. Pine Island Glacier, the most active of the studied glaciers, has accelerated by 75 percent...
Climate change affecting deepest depths of Antarctic ocean, study finds
2014-03-04 14:38:00| Climate Ark Climate Change & Global Warming Newsfeed
Blue and Green: The impacts of climate change are being felt at even the deepest depths of the Antarctic ocean, a new study has found, in a discovery that may explain a 40 year old mystery. In the mid-1970s, the first satellite images to be studied of Antarctica during the polar winter discovered a strange phenomenon. In the Weddell Sea, researchers noticed a huge ice-free region known as a polynia that remained open for three winters. Scientists found that the polynia was kept open by warm waters that...
Tags: change
study
ocean
finds
Antarctic glacier thinned as rapidly in past
2014-02-22 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
ClimateWire: The Pine Island Glacier, which sits on part of west Antarctica, is the single largest contributor to global sea-level rise. That is because the enormous glacier, which constitutes 10 percent of the West Antarctic Ice Sheet, is thinning rapidly, allowing more and more of its land-based ice to reach the sea. How fast this rapid thinning goes on, and for how long, will determine how quickly sea levels rise in the future. Now, a group of researchers from the British Antarctic Survey, working with...
Tags: past
rapidly
glacier
antarctic
Antarctic glacier shrank quickly in the past
2014-02-21 08:26:00| Climate Ark Climate Change & Global Warming Newsfeed
Ars Technica: We recently covered some research on Greenlands Jakobshavn Ice Stream, the worlds fastest glacier. While nothing on Antarctica can match that speed, the continent has ice streams of its own. Many have been shrinking, too--retreating and thinning as melting at the coast pulls continental ice out to die in the sea. Of particular note is the Pine Island Glacier (PIG, for short). This massive glacier flows into the Amundsen Sea, and was the source of the 35km wide iceberg that made news last November....
Tags: past
quickly
glacier
antarctic
Antarctic ice shelves could disappear
2014-01-30 10:24:00| Climate Ark Climate Change & Global Warming Newsfeed
New Zealand Herald: A number of floating ice shelves in Antarctica are at risk of disappearing entirely in the next 200 years, as global warming reduces their snow cover, a new study has found. Their collapse would enhance the discharge of ice into the oceans and increase the rate at which sea-level rises. Scientists have been observing ice-shelf retreat around the Antarctic Peninsula since the early 1990s, but a new model provides for the first time a strong basis for the prediction of future changes - a major...
Tags: ice
disappear
shelves
antarctic
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