Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. 24/7 Space News .




ICE WORLD
Melting ice on Arctic islands boosts sea levels: study
by Staff Writers
Paris (AFP) April 21, 2011


Melting glaciers and ice caps on Canadian Arctic islands play a far greater role in sea level rise that previously suspected, according to a study published Thursday.

Between 2004 and 2009, the 30,000 snow-and-ice covered islands in the Canadian Archipelago shed 363 cubic kilometres (87 cubic miles) of water, equivalent to three-quarters of contents of Lake Erie, the study found.

During the first half of this six-year period, the average loss was 29 cubic kilometres (seven cubic miles) per year. But during the second three-year period, the average jumped to 92 cubic kilometres (22 cubic miles) annually.

Over the full six years, this added a total of one millimeter to the height of the worlds oceans, the researchers calculated.

"This is a region that we previously didn't think was contributing to sea level rise," said Alex Gardner, a researcher at the University of Michigan and lead author of the study.

"Now we realise that outside of Antarctica and Greenland, it was the largest contributor for the years 2007 through 2009. This area is highly sensitive and if temperatures continue to increase, we will see much more melting," he said in a statement.

Ninety-nine percent of all the world's land ice is trapped in the massive ice sheets of Antarctica and Greenland.

Despite their size, however, they currently only account for about half of the land-ice bleeding each year into the oceans, mainly because they are so thick and cold that ice melts only at their edges.

The other half of the ice melt contributing to sea-level rise comes from smaller mountain glaciers and ice caps such as those in the Canadian Arctic, Alaska and Patagonia.

The study's results, published in Nature, show that the impact of these regions on sea level rise has been largely overlooked.

Gardner cautioned that the relatively short time span of the study -- six years -- is not long enough to constitute a climate trend, but said the results should be taken as a warning.

"This is a big response to a small change in climate," he said. "If the warming continues and we start to see similar responses in other glaciated regions, I would say it's worrisome."

Most experts on climate change and sea levels project that the ocean watermark will rise roughly a metre by century's end.

This could be devastating for tens of millions of people living in low-lying deltas, many of which are also sinking at the same time.

Rising sea levels could poison aquifers and amplify the impacts of storm surges and tsunamis, experts say.

.


Related Links
Beyond the Ice Age






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





ICE WORLD
Arctic Coasts On The Retreat
Potsdam, Germany (SPX) Apr 19, 2011
The coastline in Arctic regions reacts to climate change with increased erosion and retreats by half a metre per year on average. This means substantial changes for Arctic ecosystems near the coast and the population living there. A consortium of more than thirty scientists from ten countries, including researchers from the Alfred Wegener Institute for Polar and Marine Research in the Helm ... read more


ICE WORLD
BRP To Contribute To Canadian Moon And Mars Exploration Programs

Naveen Jain Co-Founder And Chairman Of Moon Express

Project Morpheus To Begin Testing At NASA's Johnson Space Center

NASA Announces Winners Of 18th Annual Great Moonbuggy Race

ICE WORLD
Dry ice find hints Mars was a wetter place: study

A Tale Of Two Deserts

Mars Rover's 'Gagarin' Moment Applauded Exploration

Mars Flight Possible After 2035

ICE WORLD
Russians 'never ever did it in space': official

Iran To Put Monkey Into Orbit

NASA Device Inducted Into Space Technology Hall Of Fame

NASA Awards Next Set Of Commercial Crew Development Agreements

ICE WORLD
Asia's star ever brighter in space

What Future for Chang'e-2

China setting up new rocket production base

China's Tiangong-1 To Be Launched By Modified Long March II-F Rocket

ICE WORLD
Paparazzi In Space

CSA Celebrates A Decade Of Success With Canadarm2

Roberto Vittori's DAMA Mission To ISS

Northrop Grumman To Test Heat Management System On ISS

ICE WORLD
Ariane rocket launches two telecoms satellites

SpaceX aims to put man on Mars in 10-20 years

ULA Launches Fifth NRO Mission In Seven Months

Ariane 5 Cleared For Launch With Yahsat Y1A And Intelsat New Dawn

ICE WORLD
The Shocking Environment Of Hot Jupiters

Radio signals could 'tag' distant planets

Titan-Like Exoplanets

A New Way To Find Planets

ICE WORLD
Malaysia tries to soothe concerns over rare earths plant

Samsung bites back at Apple with lawsuit

Over 100,000 paid subscribers for NYTimes.com

Jobs hopes to return 'as soon as he can': Cook




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement