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Latest Ice sheet Stories

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2009-04-09 14:10:56

U.S. and British government researchers announced on Friday that climate change is quickly shrinking one Antarctic ice shelf, while another is disappearing and glaciers are melting faster than climate scientists originally predicted, Reuters reported. Scientists noted that the Wordie Ice Shelf, which has been disintegrating since the 1960s, is gone and the northern part of the Larsen Ice Shelf no longer exists. Since 1986, over 3,200 square miles have broken off from the Larsen shelf. U.S....

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2009-04-03 07:05:00

The Wilkins Ice Shelf is at risk of partly breaking away from the Antarctic Peninsula as the ice bridge that connects it to Charcot and Latady Islands looks set to collapse. The beginning of what appears to be the demise of the ice bridge began this week when new rifts forming along its centre axis resulted in a large block of ice breaking away. The Advanced Synthetic Aperture Radar (ASAR) images acquired on 2 April by ESA's Envisat satellite confirm that the rifts are quickly expanding...

2009-03-30 13:34:43

The U.S. space agency announced the start Monday of a monthlong Arctic research mission using aircraft to measure the thickness of Greenland's ice sheet. The mission is the first of two National Aeronautics and Space Administration airborne field campaigns in the Arctic to closely inspect the Greenland and Iceland ice sheets and that region's sea ice and glaciers. NASA's Ice, Cloud and land Elevation Satellite, known as ICESat, is completing a seasonal study of the Earth's ice sheets to gauge...

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2009-03-30 14:26:54

Although the International Polar Year officially came to a close in February, NASA is continuing to push the frontiers of polar science from space, the air and the surface of ice. On Monday, NASA embarks on the first of two airborne field campaigns in the Arctic to take a closer look at Greenland and Iceland ice sheets and the region's sea ice and glaciers. From space, NASA's Ice, Cloud, and land Elevation Satellite, known as ICESat, is completing a seasonal survey of the world's ice sheets...

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2009-03-17 16:27:25

A robot submarine studying the underbelly of an Antarctic ice shelf has found evidence of rising sea levels, scientists reported on Tuesday. Developed by UK's National Oceanography Center of Southampton, Autosub is an Automated Underwater Vehicle (AUV). It has completed six missions traveling under Pine Island Glacier, an extension of the West Antarctic ice sheet in the Amundsen Sea. The sub uses sonar to create a three-dimensional map of the seabed and the underside of the ice. Scientists...

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2009-03-17 15:36:29

A poll of experts finds that a dramatic climate shift such as the death of the Amazon forest or the disappearance of Greenland's ice is more than 50 percent likely during the next 200 years under the worst case global warming scenarios. The survey of 52 scientists also revealed concerns that long-term global warming would spur drastic changes such as the disintegration of the ice sheet in West Antarctica, something that would raise world sea levels. "There's concern about the risks of massive...

2009-03-08 00:35:00

British scientists have been given the go-ahead to drill through the Antarctic ice sheet into Lake Ellsworth, which has been sealed off for thousands of years. The main goal of the project is to determine whether there is life in the lake, The Independent reported. The lake, one of about 150 that have been found under the ice sheet, has been covered for at least 400,000 years -- and possibly form as long as 2 million years. It is a dark, cold place that has been sealed from the outside world...

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2009-02-24 07:20:00

A group of environment ministers landed on a remote corner of Antarctica on Monday to learn more about how the melting continent may threaten the Earth. The parka-clad representatives from more than twelve nations, including the U.S., China, Britain and Russia, were to meet scientists from the U.S. and Norway who were arriving after the last leg of a two-month, 1,400-mile trip over the ice from the South Pole. The group will gain "hands-on experience of the colossal magnitude of the Antarctic...

2009-02-16 11:04:04

A U.S. geoscientist says although it's known the Greenland and Antarctica ice sheets are melting, how much ice will melt is undetermined. Penn State Professor Richard Alley said if Greenland's ice sheet melts, sea level will rise about 23 feet, which will inundate portions of nearly all continental shores. However, Antarctica, containing much more water, could add another 190 feet to sea level. We do not think that we will lose all, or even most, of Antarctica's ice sheet, said Alley. But...

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2009-01-21 15:35:00

A new study suggests that Antarctica is rising in temperature, despite previous claims it was the only continent not suffering from global warming. Research in the past indicated that temperatures on much of Antarctica were staying the same or even cooling. But a review of satellite and weather records for the continent, which contains 90 percent of the world's ice and would raise world sea levels if it thaws, proves that freezing temperatures had risen by about 0.8 Fahrenheit since the...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.