
© Jason Box / Byrd Polar Research Center, OhioThe Petermann Glacier seen in August, 2009. The cliffs on the left are about 3,000 feet high, about the same height as three Eiffel Towers or more than two Willis Towers.
Astonished scientist says he was 'completely unprepared for the gob-smacking scale of the breakup, which rendered me speechless' New photographs taken of a vast glacier in northern Greenland have revealed the astonishing rate of its breakup, with one scientist saying he was rendered "speechless."
In August 2010, part of the Petermann Glacier about four times the size of Manhattan island
broke off, prompting a hearing in Congress.
Researcher Alun Hubbard, of the Centre for Glaciology at Aberystwyth University, U.K., told msnbc.com by phone that another section, about twice the size of Manhattan, appeared close to breaking off.
In 2009, scientists installed GPS masts on the glacier to track its movement.
But when they returned in July this year, they found the ice had been melting so quickly - at an unexpected 16-and-a-half feet in two years - that some of the masts stuck into the glacier were no longer in position.