Antarctica study challenges warming skepticsAnd as if to underline the fact that Antarctica is warming, news has come out that the Wilkins ice shelf is on the verge of completely collapsing:
Challenging warming skeptics who note that parts of Antarctica have gotten colder, researchers on Wednesday reported that overall the continent has gotten warmer since the 1950s, and that even those colder spots would be warmer were it not for the ozone hole.
"Contrarians have sometime grabbed on to this idea that the entire continent of Antarctica is cooling, so how could we be talking about global warming," said study co-author Michael Mann, director of the Earth System Science Center at Penn State University. "Now we can say: No, it's not true ... It is not bucking the trend."
Antarctic ice shelf at riskThe Wilkins ice shelf is part of the Antarctic Peninsula in Western Antarctica, the part of the continent that has long been known to be warming. But it’s still a pretty drastic reminder of the ramifications of unchecked global warming, and how urgent it is that the US pass strong legislation to control global warming pollution. Antarctica may be a long way from us here in the United States, but the impacts of Antarctic melting affect us all.
The vast Wilkins ice shelf in Antarctica is on the brink of collapse, scientists have warned.
It is held in place by a 25-mile long strip of ice that has shrunk to about 500m wide at its narrowest point and could collapse at any time.
In total, about 15,500 sq miles of ice shelves have been lost, changing the maps of Antarctica in one of the most dramatic signs of climate change.
Glaciologist David Vaughan of the British Antarctic Survey said it is miraculous the shelf is still there.
The Wilkins once covered 6,178 sq miles but lost a third of its area and is now the size of Jamaica, but once the ice bridge collapses, sea currents are likely to sweep away much of what is left.
[…]
The change is widely blamed on heat-trapping gases from burning fossil fuels.
In total, about 15,500 sq miles of ice shelves have been lost, changing the maps of Antarctica in one of the most dramatic signs of climate change.
Ocean sediments indicate that some shelves had been in place for at least 10,000 years.
You must have an account and be logged in to post comments. Log in or create an account for the Greenpeace member center here.
The planet needs you, and so do we. Join our mailing list to get the latest Greenpeace news, online action alerts, and more delivered to your inbox. It's one more way you can help create a more green and peaceful future.
Join the conversation on the Greenpeace Activist blog! Start your own blog and connect with other bloggers. Network with fellow activists, share your stories, discuss latest news and trends and trade tips on organizing and living green. The Greenpeace Activist blog is your place to help build and engage with the environmental movement.
November 2009 (16)
October 2009 (40)
September 2009 (37)
August 2009 (26)
July 2009 (34)
June 2009 (40)
May 2009 (25)
April 2009 (42)
March 2009 (28)
February 2009 (16)
January 2009 (20)
December 2008 (12)
350
Alternet
Bright Green Blog
Celsias
Climate Progress
DeSmogBlog
Dateline Earth
Dot Earth
EcoGeek
Environmental Capital
Green For All Blog
Green Inc.
Greenspace
Grist Magazine
The Huffington Post
It's getting hot in here
Mother Jones
NRDC blogs
Outside Blog
Skeptical Science
The Skywriter
Sustainablog
The Thin Green Line
Treehugger
Understory
Unsilent Generation
Utne Reader
Warming Law
Wonk Room
Yahoo! Green
1Sky
350
Apollo Alliance
Boreal Songbird Initiative
Environmental Investigation Agency
ForestEthics
Green for All
Markets Initiative
Natural Resources Defense Council
NukeFree.org
Rainforest Action Network
Sierra Club
Sustainable South Bronx
True Majority
We Can Solve It