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PARIS (AFP) - New evidence has emerged that a large plate of floating ice shelf attached to Antarctica is breaking up, in a troubling sign of global warming, the European Space Agency (ESA) said on Thursday. Images taken by its Envisat remote-sensing satellite show that Wilkins Ice Shelf is "hanging by its last thread" to Charcot Island, one of the plate's key anchors to the Antarctic peninsula, ESA said in a press release. "Since the connection to the island... helps stabilise the ice shelf, it is likely the breakup of the bridge will put the remainder of the ice shelf...

Satellite images show the runaway disintegration of a 160-square-mile chunk in western Antarctica, which started Feb. 28. It was the edge of the Wilkins ice shelf and has been there for hundreds, maybe 1,500 years. This is the result of global warming, said British Antarctic Survey scientist David Vaughan. Because scientists noticed satellite images within hours, they diverted satellite cameras and even flew an airplane over the ongoing collapse for rare pictures and video. "It's an event we don't get to see very often," said Ted Scambos, lead scientist at the National Snow and Ice Data Center in Boulder, Colo....

A vast ice shelf hanging on by a thin strip looks to be the next chunk to break off from the Antarctic Peninsula, the latest sign of global warming's impact on Earth's southernmost continent. Scientists are shocked by the rapid change of events. Glaciologist Ted Scambos of the University of Colorado was monitoring satellite images of the Wilkins Ice Shelf and spotted a huge iceberg measuring 25 miles by 1.5 miles (41 kilometers by 2.5 kilometers - about 10 times the area of Manhattan) that appeared to have broken away from the shelf. Scambos alerted colleagues at the British Antarctic...

TORONTO - A giant ice shelf the size of 11,000 football fields has snapped free from Canada's Arctic, scientists said. The mass of ice broke clear 16 months ago from the coast of Ellesmere Island, about 497 miles south of the North Pole, but no one was present to see it in Canada's remote north. Scientists using satellite images later noticed that it became a newly formed ice island in just an hour and left a trail of icy boulders floating in its wake. Warwick Vincent of Laval University, who studies Arctic conditions, traveled to the newly formed ice island...

The theory of global warming proposes that man's activities are causing the Earth to heat up, but there is compelling scientific evidence that does not support this conclusion.   Very few people have heard of the Larsen B ice shelf. For thousands of years in the Antarctic, the place was a desolate frozen wasteland, crisscrossed by crevasses and swept by powerful ice and snowstorms. Beginning in 2002, satellite imagery began to show instability in the Larsen B ice shelf. According to research published by the journal Nature, much of the more than 4,600 square mile ice shelf collapsed. Since then, icebergs...

SYRACUSE, N.Y. - An expansive ecosystem of knee-high mud volcanoes, snowy microbial mats and flourishing clam communities lies beneath the collapsed Larsen Ice Shelf in Antarctica, say researchers. The discovery made in February in a deep glacial trough in the northwestern Weddell Sea was detailed this week in Eos, the weekly newspaper of the American Geophysical Union. Such sunless, cold-vent ecosystems have been found elsewhere — near Monterey, Calif., in the Gulf of Mexico and in the Sea of Japan — but never in Antarctica, the report said. "Seeing those organisms on the ocean bottom, it's like lifting the carpet...

Antarctic ice shelf retreats happened before No: 4/2005 23 Feb 2005 The retreat of Antarctic ice shelves is not new according to research published this week (24 Feb) in the journal Geology by scientists from Universities of Durham, Edinburgh and British Antarctic Survey (BAS). A study of George VI Ice Shelf on the Antarctic Peninsula is the first to show that this currently ‘healthy’ ice shelf experienced an extensive retreat about 9500 years ago, more than anything seen in recent years. The retreat coincided with a shift in ocean currents that occurred after a long period of warmth. Whilst rising...

LONDON — The current retreat of ice shelves in the Antarctic due to global warming is nothing new -- but this time the problem is manmade and therefore potentially more serious, according to research released Wednesday. Writing in the latest issue of the journal "Geology," British scientists said a survey had shown that ice shelves had retreated thousands of years ago as a result of rising air and ocean temperatures. "What this tells us is that ice shelves don't just break up because they get too big -- as the global warning skeptics argue," said Dominic Hodgson, a scientist with...

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 May 27 Antarctic Ice Shelf Vista Credit & Copyright: Helmut Rott (U. Innsbruck) Explanation: It's all gone but the mountains. Most of the sprawling landscape of ice that lies between the mountains visible above has now disintegrated. The above picture was taken in Antarctica from the top of Grey Nunatak, one of three Seal Nunatak mountains that border the Larsen B Ice-Shelf. The other two Nunataks are...

18:30 23 April 02 NewScientist.com news service Colossal icebergs that fractured away from an Antarctic ice shelf in 2000 have dramatically reduced the growth of sea phytoplankton in a region of the Ross Sea. Scientists fear this could disrupt the food chain is this biologically rich area. Satellite data shows the volume of phytoplankton in the southwestern Ross Sea fell by about 40 per cent between March 2000, when the icebergs broke away from the Ross Ice Shelf, and December 2001. A single iceberg measuring 10,000 square kilometers first sliced away from the shelf before breaking into smaller icebergs. The icebergs became grounded...