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Iceberg twice the size of Manhattan breaks off


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An iceberg twice the size of Manhattan tore off one of Greenland's largest glaciers, illustrating another dramatic change to the warming island.

 

For several years, scientists had been watching a long crack near the tip of the northerly Petermann Glacier. On Monday, NASA satellites showed it had broken completely, freeing an iceberg measuring about 120 square kilometres.

 

A massive ice sheet covers about four-fifths of Greenland. Petermann Glacier is mostly on land, but a segment sticks out over water like a frozen tongue, and that's where the break occurred.

 

This NASA image provided by the University of Delaware shows where the 120 square kilometre ice island separated from the tongue-like part of the glacier that sticks out over water. (NASA/University of Delaware/Associated Press)

The same glacier spawned an iceberg twice that size two years ago. Together, the breaks made a large change that's got the attention of researchers.

 

http://www.cbc.ca/news/canada/newfoundland-labrador/story/2012/07/18/sci-ap-greenland-iceberg.html

 

Crazy!

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