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Latest Ice sheet Stories

2009-10-06 14:50:30

NASA will hold a media teleconference at 11:30 a.m. EDT on Thursday, Oct. 8, to preview the agency's largest airborne research effort ever to study Antarctic ice sheets, ice shelves and sea ice. The flights are part of NASA's Operation Ice Bridge, a six-year airborne campaign to each of Earth's polar regions that will extend and expand NASA's multi-year record of space-based observations of ice conditions. Advancing scientific understanding of the behavior of polar ice is needed to improve...

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2009-10-01 12:00:00

The U.S. space agency says it is ready to start a study of the Earth's southern ice-covered regions to identify changes in sea ice, ice sheets and glaciers. On Oct. 12, NASA's Operation Ice Bridge resumes when the space agency's DC-8 -- the largest aircraft in its science fleet -- leaves the Dryden Flight Research Center in California for Punta Arenas, Chile, where it will be based through mid-November. For six weeks, the Ice Bridge team will traverse the Southern Ocean for up to 17 flights...

2009-10-01 12:05:20

Palynomorphs from sediment core give proof to sudden warming in mid-Miocene era For Sophie Warny, LSU assistant professor of geology and geophysics and curator at the LSU Museum of Natural Science, years of patience in analyzing Antarctic samples with low fossil recovery finally led to a scientific breakthrough. She and colleagues from around the world now have proof of a sudden, remarkably warm period in Antarctica that occurred about 15.7 million years ago and lasted for a few thousand...

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2009-09-30 06:03:09

At an Oxford University climate conference, experts announced that sea levels across the globe will almost inevitably rise more than 6 feet. "The crux of the sea level issue is that it starts very slowly but once it gets going it is practically unstoppable," said Stefan Rahmstorf, a scientist at Germany's Potsdam Institute and a broadly respected sea level expert. "There is no way I can see to stop this rise, even if we have gone to zero emissions." According to Rahmstorf, the best outcome...

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2009-09-28 14:35:00

Scientists are taking a more in-depth view of how climate change could affect Antarctica's ice, and how even a small change in temperature could lead to a global rise in sea levels. "If you're going to have even a few meters it will change the geography of the planet," Rajendra Pachauri, head of the U.N.'s Intergovernmental Panel on Climate Change (IPCC) told Reuters. "Greenland and Antarctica are two huge bodies of ice sitting on land that could really have very serious implications for the...

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2009-09-24 12:25:25

According to a study that might help predict rising sea levels linked to climate change, scientists are surprised at how fast coastal ice in Antarctica and Greenland is thinning. Scientists at the British Antarctic Survey (BAS) and Bristol University said that glaciers speeding up when they flowed into the sea caused the biggest loss of ice, which was seen by analysis of missions of NASA satellite laser images. "We were surprised to see such a strong pattern of thinning glaciers across such...

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2009-09-23 13:05:06

Researchers from the Woods Hole Oceanographic Institution spent last month trying to determine if warmer oceanic waters were seeping into the regions surrounding Greenland. Ruth Curry and a team of researchers based their study on the observation that glaciers have started to flow faster than normal throughout the past decade. This observation led them to believe that warmer, subtropical waters were to blame. In 2005, scientists noticed that Greenland's Helheim Glacier had nearly doubled in...

2009-09-17 11:05:12

British scientists say they have created a model of the British and Irish ice sheets that shows they moved in unexpected ways. Durham University researchers said their model reveals for the first time how the glaciers reversed their flows and retreated back into upland regions from where they originated. During the last glacial maximum, around 21,500 years ago, the ice sheets built up on the high land of the Lake District, north Pennines and Scottish Southern Uplands, the researchers said. As...

2009-09-16 07:19:27

The ice sheets that sculpted the landscape of northern Britain moved in unexpected ways and left distinctive egg-shaped features according to new research. Scientists from Durham University have deciphered the landforms and created a model of the British and Irish Ice Sheet (BIIS) which reveals for the first time how glaciers reversed their flows and retreated back into upland regions from where they originated. These ice sheet flow patterns created a unique 'overprinting' of British glacial...

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2009-09-15 06:40:00

Researchers have confirmed for the first time a link between declining levels of atmospheric carbon dioxide (CO2) and the formation of Antarctic ice caps some 34 million years ago. The results of the major research study support computer climate models that predict both the creation of ice sheets when CO2 levels fall and the melting of ice caps when CO2 levels rise. "Our study is the first to provide a direct link between the establishment of an ice sheet on Antarctica and atmospheric carbon...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'