But since it floats on top of the ocean anyway there is no rise in sea level as there is with melting glaciers, as noted in this story.
An excerpt.
23 October 2006 11:45
Cracking up: Ice turning to water, glaciers on the move - and a planet in peril
A new study proves it was global warming that sent an Antarctic ice shelf larger than Luxembourg crashing into the ocean. Geoffrey Lean reports
Published: 22 October 2006
Nothing else quite like it has happened at any time in the past 10,000 years. In just over a month an entire Antarctic ice shelf, bigger than a small country, disintegrated and disappeared, altering world atlases for ever.
A new study shows that the catastrophic collapse of the Larsen B shelf, four and a half years ago, was man-made, not an "act of God". It is thought to have been the first time that a major disaster has been proved to have been caused by global warming.
Research at the blue-chip British Antarctic Survey in Cambridge, published last week, has identified the causes of "dramatic warming" of the eastern side of the Antarctic peninsula, where the vast, 3,250 sq km expanse of ice used to be. Gareth Marshall, the lead author of the study, says it marks "the first time that anyone has been able to demonstrate a physical process directly linking the break-up of the Larsen ice shelf to human activity".
The research has also linked the collapse to the hole in the Earth's protective ozone layer that opens up over the Antarctic every southern spring. Nasa scientists reported last week that this year's hole, at a massive 10.6m square miles, is bigger than ever.
