Navigation Links
Wetlands likely source of methane from ancient warming event
Date:4/23/2009

An expansion of wetlands and not a large-scale melting of frozen methane deposits is the likely cause of a spike in atmospheric methane gas that took place some 11,600 years ago, according to an international research team led by Scripps Institution of Oceanography at UC San Diego.

The finding is expected to come as a relief to scientists and climate watchers concerned that huge accelerations of global warming might have been touched off by methane melts in the past and could happen again now as the planet warms. By measuring the amount of carbon-14 isotopes in methane from air bubbles trapped in glacial ice, the researchers determined that the surge that took place nearly 12,000 years ago was more chemically consistent with an expansion of wetlands. Wetland regions, which produce large amounts of methane from bacterial breakdown of organic matter, are known to have spread during warming trends throughout history.

"This is good news for global warming because it suggests that methane clathrates do not respond to warming by releasing large amounts of methane into the atmosphere," said Vasilii Petrenko, a postdoctoral fellow at University of Colorado, Boulder, who led the analysis while a graduate student at Scripps.

The results appear in April 24 editions of the journal Science.

Scientists had long been concerned about the potential for present-day climate change to cause a thawing of Arctic permafrost and a warming of ocean waters great enough to trigger a huge release of methane that would send planetary warming into overdrive. Vast amounts of methane are sequestered in solid form, known as methane clathrate, in seafloor deposits and in permafrost. Cold temperatures and the intense pressure of the deep ocean stabilize the methane clathrate masses and keep methane from entering the atmosphere.

Scientists have estimated that a melting of only 10 percent of the world's clathrate deposits would create a gree
'/>"/>

Contact: Robert Monroe or Mario Aguilera
scrippsnews@ucsd.edu
858-534-3624
University of California - San Diego
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Scientists find climate change to have paradoxical effects in coastal wetlands
2. Value of satellites recognized for conserving wetlands
3. Wetlands expert: China should think outside the flooding box with Three Gorges Dam
4. Study: Tropical wetlands hold more carbon than temperate marshes
5. Wetlands restoration not a panacea for Louisiana coast
6. Flooding might help lower gas emission from wetlands
7. Rising energy, food prices major threats to wetlands as farmers eye new areas for crops
8. Unlikely life thriving at Antarcticas Blood Falls
9. Cretaceous octopus with ink and suckers -- the worlds least likely fossils?
10. Mammals that hibernate or burrow less likely to go extinct
11. Dog owners more likely to share germs with pets by not washing hands than by sleeping with dog
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Wetlands likely source of methane from ancient warming event
(Date:6/18/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the ... commerce market announces that its Wocket® smart wallet will be ... Mark", scheduled to air on WABC Radio (am770) in ... The broadcast air- time for the extensive ... NXT-ID, Inc.,s CEO Gino Pereira will be discussing ...
(Date:6/17/2015)... GERMANTOWN, Maryland , and HILDEN, Germany ... (NASDAQ: QGEN ; Frankfurt Prime Standard: QIA) today launched ... DNA evidence in forensic laboratories in the United ... integrated solution to simultaneously analyze multiple key genomic markers (short ... Investigator ® Quality Sensor to evaluate the quality of ...
(Date:6/17/2015)... Fla. , June 17, 2015  Crossmatch™, ... today announced that its U.are.U ® 4500 ... Togo,s Eateries, Inc., a ... sandwich chain, to increase security, improve accountability and ... readers enable instant, non-repudiable identity confirmation for employee ...
Breaking Biology News(10 mins):NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 3QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 2QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 3QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 4QIAGEN Launches New Genetic Fingerprinting Kits for U.S. Forensic Labs 5Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3
... Sildenafil and other "impotence drugs" that boost the production of ... an erection now also show promise in unmasking cancer cells ... say scientists at the Johns Hopkins Kimmel Cancer Center. , ... tumors showed that tumor size decreased two- and threefold in ...
... many as 18 percent of adults who have no history ... stroke, according to results of a large national study published ... one of the JAMA/Archives journals. , Using brain imaging to ... have had an undiagnosed or silent stroke, according to background ...
... in imaging software and machinery, also known as a 64-slice ... and accurate means of tracking blood that has been slowed ... it took them less than half the time of exercise ... warning of vessels more likely to become blocked and cause ...
Cached Biology News:'Erectile dysfunction' drugs heighten natural anti-cancer activity 2Stroke symptoms common among general population 2Fast test for low blood flow in dogs detects early heart trouble 2Fast test for low blood flow in dogs detects early heart trouble 3Fast test for low blood flow in dogs detects early heart trouble 4
(Date:6/26/2015)... ... June 26, 2015 , ... ReliantHeart, Inc. , ... that from the first implant of the HeartAssist5® LVAD (HA5) to the 68th consecutive ... , Thrombus that originates in an LVAD is referred to as de novo ...
(Date:6/25/2015)... 25, 2015 ... announced the addition of the  "2015 ... Cancer Diagnostics Industry: Oncogenes, Biochemical Markers, ... Commercial Labs, POC Locations"  report ... (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , A ...
(Date:6/25/2015)... ... June 25, 2015 , ... The ... its 2015 National Patient and Family Conference, Providing and Pursuing Answers: Advances in ... Renaissance Chicago O’Hare Suites Hotel, July 24-25, 2015. , “As advances in research ...
(Date:6/25/2015)... 25, 2015  BioMed Realty Trust, Inc. (NYSE: ... ILMN ), a world leader in genomics focused on ... genome, has signed a 20-year lease for a 155,000 ... Cambridge, England . The project will ... highly skilled workforce in the dynamic research cluster anchored ...
Breaking Biology Technology:HeartAssist5® Remote Monitoring has alerted no patterns of de novo thrombus in 68 consecutive implants 2HeartAssist5® Remote Monitoring has alerted no patterns of de novo thrombus in 68 consecutive implants 3Analysis of the Global Cancer Diagnostics Industry 2015-2020: Oncogenes, Biochemical Markers, Lymphokines, GFs, CSFs, Hormones, Immunohistochemical Stains 2Analysis of the Global Cancer Diagnostics Industry 2015-2020: Oncogenes, Biochemical Markers, Lymphokines, GFs, CSFs, Hormones, Immunohistochemical Stains 3Nationally Recognized Brain Tumor Experts to Speak at American Brain Tumor Association Patient and Family Conference 2BioMed Realty And Illumina Announce New Build-To-Suit Laboratory Building In Cambridge's Growing Life Science Cluster 2BioMed Realty And Illumina Announce New Build-To-Suit Laboratory Building In Cambridge's Growing Life Science Cluster 3
... NEW YORK, Aug. 1, 2011 /PRNewswire-Asia-FirstCall/ -- American Oriental ... or "AOBO"), a pharmaceutical company dedicated to improving health ... range of prescription and over the counter ("OTC") products, ... 2011 financial results on Tuesday, August 9, 2011, after ...
... Researchers have developed a toolkit that enables them to ... Led by Susan Dymecki, a professor of ... serotonin-producing neurons, observing how mice behave in a normal ... While their findings affirm earlier studies, the researchers used ...
... When normal proteins form protein clumps in the body, ... "amyloids," are closely associated with Alzheimer,s disease and type ... knew how these proteins form clumps, then they might ... The physicist Adrian Keller and his colleagues at the ...
Cached Biology Technology:American Oriental Bioengineering to Announce Second Quarter 2011 Financial Results on August 9, 2011 2Researchers target, switch off serotonin-producing neurons in mice 2Researchers target, switch off serotonin-producing neurons in mice 3In the pursuit of dangerous clumps 2In the pursuit of dangerous clumps 3
Identify and characterize Phosphoinositide (PI(4,5)P2) binding...
Recommended fro Western blotting application...
... Immunogen corresponds to amino acids 2-105 ... has been successfully used in Western blot, ... blot, this antibody detects an ~ 60 ... has also been used in immunoprecipitation and ...
... KLF15 is a Cys2-His2 zinc finger gene. ... liver, kidneys, heart, and skeletal muscle. ... produced in rabbits immunized with a synthetic ... KLF15 with an internal ID of P03590 ...
Biology Products: