sail-world.com
 
 
News Home Cruising Photo Gallery Video Gallery

 

Sail-World.com : Earth's ice sheets melting sooner than expected: New Study

Earth's ice sheets melting sooner than expected: New Study

'Ice sheets recorded as melting faster than expected'    .
Unless you live in the Maldives you may not be able to sail down your main street any time soon, but it's undeniably getting easier and easier to sail the North West Passage.

Sadly, all credible scientists are in agreement that Global Warming, the reality we all shy away from facing, is coming to an area near you soon. The bad news is that according to a new credible study, it will be sooner than expected.


According to the new study led by Eric Rignot of NASA's Jet Propulsion Laboratory, the ice sheets covering both ends of Earth are losing mass at an accelerating pace, and are on a faster-than-projected path to surpass other sources of rising sea levels.

'The magnitude of the acceleration suggests that ice sheets will be the dominant contributors to sea level rise in forthcoming decades,' the team of researchers concluded after surveying 18 years of satellite and modeling data from Antarctica and Greenland.

'That ice sheets will dominate future sea level rise is not surprising — they hold a lot more ice mass than mountain glaciers,' lead author Eric Rignot, of NASA's Jet Propulsion Laboratory, said in a statement.

'What is surprising is this increased contribution by the ice sheets is already happening,' he added. 'If present trends continue, sea level is likely to be significantly higher than levels projected by the United Nations Intergovernmental Panel on Climate Change (IPCC) in 2007.'

The IPCC's estimate is actually a range — between seven inches and two feet by 2100, with little attributed to ice sheets because the science was less certain when the report was written.

Rignot's team noted that, if current trends hold, the ice sheet melt will raise sea levels by nearly six inches by 2050. Total sea level rise could top 12 inches once melting glaciers and thermal expansion are factored in, they noted.

The researchers used two different techniques to study data between 1992 and 2009, and both concluded significantly faster ice loss.

Greenland's ice sheet lost mass faster than it did in each previous year — by an average of 21.9 gigatonnes a year. (A gigatonne is one billion metric tons, or more than 2.2 trillion pounds.)

In Antarctica, the year-over-year speed up averaged 14.5 gigatonnes.

Other researchers on the team were from the National Center for Atmospheric Research in Boulder, Colo., and Utrecht University in the Netherlands.

The study will be published later this month in the peer-reviewed Geophysical Research Letters, a journal of the American Geophysical Union




by Nancy Knudsen

  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=81169

8:38 AM Wed 9 Mar 2011 GMT






Click here for printer friendly version
Click here to send us feedback or comments about this story.


News - USA and the World













































Formula Windsurfing Youth and Master Worlds overall by International Windsurfing Association,












Bakewell-White supermaxi designed to take Transpac's Barn Door Trophy *Feature by Richard Gladwell Ssail-World.com/nz,










ISAF Youth Worlds - 29er and SL16 sailors prepare for battle + Video
Volvo Ocean Race: Eight new crew members named by teams
Volvo Ocean Race: New additions to Spanish team announced
2014 Cape Panwa Hotel Phuket Raceweek - Phuket Island is ready to host
PWA Awaza World Cup - Cyril Moussilmani and Delphine Cousin on top
Foiling Week - Moth Class Italian Open Championship Day 2
America's Cup: Luna Rossa foiling in AC45s at their Italian base
Star World Championship - Germans claim dramatic win in Malcesine
PWA Awaza World Cup - Down to the wire in Turkmenistan
Route Halifax Saint-Pierre - Off to France!
Nacra 17 Europeans - La Grande Motte back in Olympic classes arena
Stena Match Cup Sweden - Hansen hat trick in Marstrand + Video
Route Halifax Saint-Pierre Race keeps an eye on Arthur
World Match Racing Tour: See the Finals replay at the Stena Match Cup
Newport International Boat Show unveils exciting 'At The Helm' Program
Stena Match Cup Sweden - First blood to Hansen over Canfield + Video
Star World Championship - Americans claim race win in Malcesine
PWA Awaza World Cup - Weather halts action on day 4
Clipper Race - Henri Lloyd wins OneDLL Cup into Den Helder
Clipper Race - Close match racing in closing stages of the OneDLL Cup
Volvo Ocean Race: Spanish play catch-up with under 100 days to go   
World Match Racing Tour: Catch the live action at the Stena Match Cup   
Finn Junior Worlds - Battle for the Jorge Bruder Silver Cup   
Mobiles drive traffic - 72% increase in Sail-World.com page view *Feature   
British Open Dragon Championship finale at Royal Lymington preview   
2014 Cape Panwa Hotel Phuket Raceweek - Phuket is ready to host   
PWA Awaza World Cup - Valerie Ghibaudo hits back on day 3   
Star World Championship - Hard fought win on day 4 + Video   
Stena Match Cup Sweden - Action-packed match racing + Video   
Oceans of Hope yacht arrives in Portsmouth   
Bell's Beer Bayview Mackinac Race - Registration details   
RORC Transatlantic Race - Polishing up the silver   
Vic-Maui International Yacht Race - First start to lead off busy day   
Anna Tunnicliffe competing at the CrossFit Mid-Atlantics + Video   
18ft Skiff Europeans: Winning days at Lake Garda   
Clipper Race - Choppy conditions as fleet closes in on Den Helder   
Lightning Youth World Championship - Final day   
2014 Star Class World Championship - Day 3   
America's Cup: Dean Barker interviewed on the current state of the Cup   
PWA Awaza World Cup - Delphine Cousin draws first blood   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL WAS US
LocalAds   DE  ES  FR  IT