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Climate change is altering Greenland ice sheet, accelerating sea level rise
2016-01-04 22:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: The Greenland ice sheet has traditionally been pictured as a bit of a sponge for glacier meltwater, but new research has found it is rapidly losing the ability to buffer its contribution to rising sea levels, says a York University researcher. York U Professor William Colgan, a co-author on the study published in the journal Nature Climate Change, helped analyse data from three expeditions to the Greenland ice sheet in 2012, 2013 and 2015. The research was done in conjunction with lead researcher...
A million years ago, Greenland was ice free
2015-12-20 16:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: As the Arctic warms, Greenlands fringe of glaciers is thinning and meltingbut the future of the Greenland ice sheet remains a giant question mark. Until recently, that was also true of the ice sheets past: Scientists have long debated whether it might have shrunk away to nothing during Earths warmest periods. Now, a new study suggests that Greenland was entirely ice free at some point in the last 1.25 million years. We should be worried about the Greenland Ice Sheet, says Joerg Schaefer, a...
Greenland has lost a staggering amount of ice and its only getting worse
2015-12-17 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Washington Post: A massive new study by 16 authors has calculated just how much ice the Greenland ice sheet has lost since the year 1900. And the number, says the paper just out in the journal Nature, is astounding: 9,103 gigatons (a gigaton is a billion metric tons). Thats over 9 trillion tons in total. And moreover, the rate of loss has been increasing, the research finds, with a doubling of annual loss in the period 2003 to 2010 compared with what it was throughout the 20th century. The study was led by...
Just how fast is Greenland melting?
2015-12-17 13:29:00| Climate Ark Climate Change & Global Warming Newsfeed
Christian Science Monitor: A new study tracks how Greenland's ice structure has changed over time, including how the melting rate has accelerated in recent years. This latest study, published Wednesday in the journal Nature, tracks how Greenlands ice mass and structure has changed over a 110-year period. This fills in crucial gaps in knowledge about Greenlands role in sea-level rise, for which little data has existed until now. We have observation-based estimates that is new and super important, Kristian Kjellerup...
Greenland Ice Sheet during the 20th Century -- a missing link in IPCC's climate report
2015-12-17 06:01:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: 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. All previous estimations have been based on computer models, which although valuable do not provide the same level of insight as direct observations. In this paper,...
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