Navigation Links
Ancient glacial melting process similar to existing concerns about Antarctica, Greenland
Date:8/1/2011

CORVALLIS, Ore. An analysis of prehistoric "Heinrich events" that happened many thousands of years ago, creating mass discharges of icebergs into the North Atlantic Ocean, make it clear that very small amounts of subsurface warming of water can trigger a rapid collapse of ice shelves.

The findings, to be published this week in Proceedings of the National Academy of Sciences, provide historical evidence that warming of water by 3-4 degrees was enough to trigger these huge, episodic discharges of ice from the Laurentide Ice Sheet in what is now Canada.

The results are important, researchers say, due to concerns that warmer water could cause a comparatively fast collapse of ice shelves in Antarctica or Greenland, increasing the flow of ice into the ocean and raising sea levels. One of the most vulnerable areas, the West Antarctic Ice Sheet, would raise global sea level by about 11 feet if it were all to melt.

"We don't know whether or not water will warm enough to cause this type of phenomenon," said Shaun Marcott, a postdoctoral researcher at Oregon State University and lead author of the report. "But it would be a serious concern if it did, and this demonstrates that melting of this type has occurred before."

If water were to warm by about 2 degrees under the ice shelves that are found along the edges of much of the West Antarctic Ice Sheet, Marcott said, it might greatly increase the rate of melting to more than 30 feet a year. This could cause many of the ice shelves to melt in less than a century, he said, and is probably the most likely mechanism that could create such rapid changes of the ice sheet.

To find previous examples of such events, scientists reconstructed past ocean temperatures and used computer simulations to re-create what probably happened at various times during Heinrich events of the distant past. It had been known for some time that such events were associated with major climate changes,
'/>"/>

Contact: Shaun Marcott
marcotts@science.oregonstate.edu
541-737-1248
Oregon State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Endangered river turtles genes reveal ancient influence of Maya Indians
2. Genetic switch for limbs and digits found in ancient fish
3. Ancient symbiosis between animals and bacteria discovered
4. Ancient species of mayfly had short, tragic life
5. Adjustable valves gave ancient plants the edge
6. Significant role of oceans in onset of ancient global cooling
7. Scientists discover fossil of giant ancient sea predator
8. Battle scars found on an ancient sea monster
9. Cold case: Siberian hot springs reveal ancient ecology
10. Fossil sirenians give scientists new look at ancient climate
11. Reptilian root canal: U of T Mississauga study reveals infection in jaw of ancient fossil
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Jan. 13, 2015  Today, FreeWavz ( www.FreeWavz.com ), ... crowdfunding campaign on Fundable, https://www.fundable.com/freewavz . FreeWavz ... production capacity to meet customer demand. ... http://photos.prnewswire.com/prnh/20150113/168790 Invented by ...
(Date:1/22/2015)... POINT ROBERTS, Washington , January 20, 2015 ... sectors including technology and tech stocks, releases video from the ... pickpocket and security consultant Apollo Robbins . ... about the Wocket™ biometric smart wallet, a product of NXT-ID, ...
(Date:1/22/2015)... 2015 Infinisource has launched its new NXG series of ... G2 sets a higher standard for collecting attendance and labor ... With plug-and-play installation, touch screen interface and seamless connection to ... time collection solution for the small to mid-size employer. ...
Breaking Biology News(10 mins):FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3Infinisource's NXG series sets new time clock standard 2
... pathologist at the University of California, Riverside has identified a ... general decline of several backyard avocado and landscape trees in ... a new species of Fusarium . ... is transmitted by the Tea Shot Hole Borer ...
... 7, 2012 - A new innovation can completely reshape an ... genetically engineered (GE) crops in the 1980,s ignited a buzz ... yields and better nutritional content, along with the reduction of ... a significant role in the U.S., with more than 160 ...
... Athens, Ga. A basic tenet underpinning scientists, ... longer than their less abundant counterparts, but a new ... relationship. A team of scientists analyzed more than ... numbers did indeed help clam-like brachiopods survive the Ordovician ...
Cached Biology News:Beetle-fungus disease threatens crops and landscape trees in Southern California 2New research reveals challenges in genetically engineered crop regulatory process 2New research reveals challenges in genetically engineered crop regulatory process 3UGA study finds there's not always safety in numbers when it comes to extinction risk 2UGA study finds there's not always safety in numbers when it comes to extinction risk 3
(Date:1/23/2015)... Biofertilizers stimulate microbial activities in soil. These ... through the activities in the soil or in the ... the stress on reducing environmental pollution and on reducing ... and segments the bio fertilizers market with analysis and ...
(Date:1/22/2015)... Davis, California (PRWEB) January 22, 2015 ... of Accelerator Mass Spectrometry (AMS) services to the pharmaceutical ... PhD has joined the company in the position of ... 30 years of broad and valuable experience in drug ...
(Date:1/22/2015)... 22, 2015 GEA Niro Soavi the ... laboratory homogenizer, the PandaPLUS 2000, which is ideal for ... and cell disruption . This compact laboratory homogenizer ... juices, liquid food, food additives and ingredients as well ...
(Date:1/22/2015)... January 22, 2015 The laboratory information ... has witnessed a number of technological advancements due to ... requirements, growing need to integrate healthcare systems, and increasing ... challenges in system integration. Key players in the market ...
Breaking Biology Technology:Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 2Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 3Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 4Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4
... Genesis Biopharma, Inc. (OTC/BB: GNBP), a biotechnology company ... an article in BioMedReports that was issued earlier ... link: http://www.biomedreports.com/2012052295011/darling-dendreon-continues-taking-huge-hits.html ... Genesis Biopharma, Inc. is engaged in the ...
... BioSciences, Inc. ("Company") (OTCQB: SVFC.PK)  announced today that it ... Institute for Cell Engineering and Regenerative Medicine (ICERM) ... the collaborative work will be to explore the ... that are also referred to as stromal vascular ...
... engineering need a timely and reliable way to obtain enough ... the tissue they need to build. In a new study, ... other mechanical properties of adult stem cells derived from fat, ... into bone, cartilage, or fat. That insight could lead ...
Cached Biology Technology:Genesis Biopharma Mentioned Favorably in BioMedReports Article 2IntelliCell BioSciences Announces Collaborative Agreement with the University of Florida on Stem Cell and Tissue Repair Research 2IntelliCell BioSciences Announces Collaborative Agreement with the University of Florida on Stem Cell and Tissue Repair Research 3Physical properties predict stem cell outcome 2Physical properties predict stem cell outcome 3
Bethyl Laboratories packages antibodies, conjugates and calibrators to provide quantitative ELISA kits. Each kit contains the following components, sufficient for 1000 single well assays....
... IHC Protocol Development ,Antibody Titer and ... Animal or Human Cells and Tissues ... Tissues ,Peroxidase, Alkaline Phosphatase, Immunogold, and ... Microscopy ,Protein Localization in Transgenic Animals ...
... service involves the optimization of ... titration of the primary antibody, ... reagents (e.g. Alk. Phos., HRP, ... of detection, evaluation by light ...
Request Info...
Biology Products: