Petermann Glacier is a large glacier located in North-West Greenland to the east of Nares Strait. It connects the Greenland ice sheet to the Arctic Ocean near 81°N.
As per the recently released NASA satellite imagery, a massive iceberg has broken off of a glacier in Greenland, in what could be the latest indication of global warming.
The NASA images show the massive chunk of ice breaking off of the Petermann Glacier on the north-western coast of Greenland.
The glacier produced a similar ice island twice as large in 2010. NASA says that the crack in the glacier had been visible since 2001, and that its polar-orbiting Aqua satellite had observed the break on July 16-17.
On July 15/16 2012, a 130 km2 (50 square-miles) chunk calved from the northern tip of the glacier.