Wednesday, 11 October 2017

Scientists mapping Greenland have found an ice surprise, but it's not a nice surprise


 Greenland is less parts rock and more parts ice than previously thought.

Greenland, the world's largest island and home to its second largest ice sheet, is a land of ragged cliffs, breathtaking fjords and unimaginable amounts of water on either side of the freezing point.
It has also, until now, been something of a mystery.

Greenland drew some pointed attention during the world wars and the Cold War, thanks to its strategic location.

But it is only today, thanks to rapid climate change, that scientists are beginning to take the full measure of all the earth, rock and ice in a place that's now raising seas by nearly a millimetre every single year.

Two new studies of Greenland, using sophisticated technologies and large scientific teams to pull together and process the data, have now gone further in taking the full measure of the island through that ever-so-basic scientific act: mapping.
Greenland ice melt is already predicted to raise sea levels, so the discovery of more ice is worrying.
The first, a comprehensive seabed mapping project, relying in part on new data from NASA's OMG ("Oceans Melting Greenland") mission, concludes that the Greenland ice sheet is far more exposed to the planet's warming oceans than previously known - and has more ice to give up than, until now, has been recognised.

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