Navigation Links
Polar bears: On thin ice? Extinction can be averted, scientists say
Date:12/15/2010

Polar bears were added to the threatened species list nearly three years ago when their icy habitat showed steady, precipitous decline because of a warming climate.

But it appears the Arctic icons aren't necessarily doomed after all, according to results of a study published in this week's issue of the journal Nature.

The findings indicate that there is no "tipping point" that would result in unstoppable loss of summer sea ice when greenhouse gas-driven warming rises above a certain threshold.

Scientists from several institutions, including the U.S. Geological Survey (USGS), the National Science Foundation (NSF), and the University of Washington, have found that if humans reduce greenhouse gas emissions significantly in the next decade or two, enough Arctic ice is likely to remain intact during late summer and early autumn for polar bears to survive.

"What we projected in 2007 was based solely on the business-as-usual greenhouse gas scenario," said Steven Amstrup, an emeritus researcher at the USGS and senior scientist at the Montana-based organization Polar Bears International. "That was a pretty dire outlook, but it didn't consider the possibility of greenhouse gas mitigation."

Amstrup is the lead author of this week's Nature paper. Co-authors are Eric DeWeaver of NSF, David Douglas and George Durner of the USGS Alaska Science Center, Bruce Marcot of the U.S. Forest Service in Oregon, Cecilia Bitz of the University of Washington, and David Bailey of the National Center for Atmospheric Research in Boulder, Colo.

The 2007 study projected that only about one-third of the world's 22,000 polar bears might be left by mid-century if dramatic Arctic ice decline continued, and that eventually polar bears could disappear completely. The work led to the 2008 listing of polar bears as a threatened species.

"Our current research provides strong evidence that it's not too late to save polar bears from extinction," said DeWeaver, an
'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. New study about Arctic sea-ice, greenhouse gases and polar bear habitat
2. Its time for Europe to step up research in the polar regions
3. Biologists report more bad news for polar bears
4. Council of Science and Humanities recommends building of Polarstern II
5. Polar bears cant eat geese into extinction
6. Highlight of the Polarstern expedition
7. Scientists call for a new strategy for polar ocean observation
8. New link identified for bipolar disorder
9. Beyond polar bears? Experts look for a new vision of climate change to combat skepticism
10. Grizzly bears move into polar bear habitat in Manitoba, Canada
11. Understanding global climate change through new breakthroughs in polar research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... 27, 2014  The American Academy of Forensic ... Standards and Technology (NIST) and the Department of ... and forensic science expert members to the Forensic ... element of the NIST,s Organization of Scientific Area ... first appointments made to the new FSSB that ...
(Date:7/10/2014)... 2, 2014  Unisys Corporation,s (NYSE: UIS ) ... N.V., today announced that it has been selected by the ... a new Basic Provision Biometrics solution for penitentiaries across ... the contract with a solution based on its open standards-based ... of the contract is up to seven years, with the ...
(Date:7/10/2014)... -- Research and Markets ( http://www.researchandmarkets.com/research/h7h8lq/gesture ) has ... Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, ... to their offering http://photos.prnewswire.com/prnh/20130307/600769 ... Sensing Market to Grow Exponentially. Touch-less sensing applications ... companies were unable to leverage this technology due ...
Breaking Biology News(10 mins):Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 2Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 3Unisys Delivers New Basic Provision Biometrics Solution to Dutch Custodial Institutions Service 2Unisys Delivers New Basic Provision Biometrics Solution to Dutch Custodial Institutions Service 3Global Gesture Recognition & Touch-Less Sensing (2D, 3D, Ultrasonic, IR, Capacitive) Market - Forecasts to 2020 2
... noticed that their four-legged friend seem equally delighted to see ... if animals can tell when time passes. Newly published research ... bring us closer to answering that very question. The ... it Based on When or How Long Ago, appear in ...
... According to a report released today by the ... from Cambodias famed Tonle Sap region have staged remarkable ... of park rangers to provide 24-hour protection to breeding ... hunters and egg collectors to protect and monitor the ...
... team of researchers from Harvard School of Public Health ... described a possible reason why some studies have been ... namely that the strength of a gene/trait association might ... fail to take that into account. The paper was ...
Cached Biology News:Are animals stuck in time? 2Answer to troublesome question of why some genetic assoc. studies have failed replication attempts 2
(Date:7/10/2014)... UK (PRWEB) July 10, 2014 ... 21st Century Medicine Forum on ‘Commercialising Longevity Research’ ... and entrepreneurs to the London Bioscience Innovation Center ... Research Foundation and Aging Analytics Ltd. The meeting ... investment in translational research for age-related disease, as ...
(Date:7/10/2014)... July 10, 2014 Terascala, the industry ... that Alan Swahn, a former vice president of product ... as vice president of marketing. Terascala’s software when combined ... NetApp create the highest performance and most reliable solutions ... to guide Terascala’s channel expansion and broaden its product ...
(Date:7/10/2014)... July 10, 2014 Robert Harman, DVM, Founder ... company, is proud to announce the relaunch of his highly ... a new series called “ What are Stem Cells ?” ... honest and straightforward foundation in the basics of stem cell ... on the right type of treatment when considering regenerative medicine. ...
(Date:7/10/2014)... EvoDerma ’s NOOME Anti-Aging Motion has ... now comes with a second treatment cup to help prevent ... new cup is thinner on the edges for a softer ... thin and uneven surfaces on the face, neck and décolleté. ... treatment on areas such as the cheeks and neck, or ...
Breaking Biology Technology:DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6Terascala Expands Executive Team 2Terascala Expands Executive Team 3Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3Introducing a New Bonus Treatment Cup for EvoDerma’s NOOME Anti-Aging Motion 2
... AMLN ) will be presenting at the Morgan ... Thursday, May 1,2008 at 9:20 a.m. ET / 6:20 ... of Amylin Pharmaceuticals, will be providing a,corporate overview., ... and a,recording will be made available following the event. ...
... April 25 Isolagen(TM), Inc.,(Amex: ILE ) today announced ... Unplugged Conference on Thursday, May 1, 2008 at,3:40 p.m. EDT. ... 2008 at the,Ritz-Carlton Key Biscayne in Key Biscayne, Florida., ... be accessed by,visiting http://www.isolagen.com . An archive will ...
... 25 Beckman,Coulter, Inc. (NYSE: BEC ) ... quarterly dividend payout of seventeen cents ($0.17) per ... 2008 to all stockholders of,record on May 9, ... of dividends., (Logo: http://www.newscom.com/cgi-bin/prnh/20031202/BECLOGO ), ...
Cached Biology Technology:Isolagen to Present at the Morgan Stanley Global Healthcare Unplugged Conference 2
... Materials for 15-20 enhancements ... TM Western Blot Signal Enhancement System is designed ... and is an excellent tool for evaluating proteins with ... used to pre-treat membrane prior to blocking the membrane; ...
... CHEMICON Re-Blot Western Blot Recycling Kit ... from Western blots that have been ... or other isotopes. It is not ... DAB, 4-chloronapthol, etc.), as it is ...
... to siRNA library screening, optimal ... identified and verified for each ... CellReady siRNA Transfection Optimization Kit, ... optimizing transfection conditions in 96 ...
... Immulon ... surface to provide increased binding affinity ... Flat bottom works well for ... optical characteristics., Each ...
Biology Products: