Subscribe now

Earth

Ice plumbing is protecting Greenland from warm summers

By Anil Ananthaswamy

30 March 2010

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Greenland’s plumbing helps prevent the glacier from splitting

(Image: Ashley Cooper/SpecialistStock/SplashdownDirect/Rex Features)

IF SOME of the spectacular calving of ice shelves in Antarctica is down to global warming, then why did we not see break-ups on the same scale in Greenland, which is much warmer? It turns out that, counter-intuitively, it’s because Greenland is warmer.

When the ice sheets that blanket Antarctica and Greenland eventually meet the sea, they don’t immediately calve off and create icebergs. Instead, they extend out to sea as floating ice shelves while remaining joined to the ice sheets on land.

In 2002, a gigantic section…

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with New Scientist events and special offers.

Sign up

To continue reading, subscribe today with our introductory offers

Popular articles

Trending New Scientist articles

Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop