Navigation Links
University of Minnesota researcher finds cooling effect in warming Arctic lakes
Date:8/5/2014

Scientists have known for a while that warming global temperatures are causing Arctic lakes to release methane, a potent greenhouse gas that leads to even more warming. In a new study published in the journal Nature, a team of researchers including U of M researcher Jacques Finlay, found that Siberian lakes have actually pulled more greenhouse gasses from the atmosphere than they have released into it since the last Ice Age, causing an overall slight cooling effect.

Permafrost, especially that in the Siberian Arctic, contains significant amounts of all organic carbon found on Earth locked away in frozen soils. Warming global temperatures in the 15,000 years since the last Ice Age have begun to thaw the permafrost, leading to the widespread formation of lakes.

"As the lakes form, they thaw sediments that have been frozen for thousands of years," Finlay said. "Previous work by the lead author and others shows that this process accelerates methane production, leading to a large atmospheric flux of this greenhouse gas."

With this continued warming over thousands of years, however, the sediment destabilizes and the lakes fill and subsequently drain. Scientists had never studied the role of thaw, or thermokarst, in lakes in the global carbon cycle past the initial burst of greenhouse gas release.

"[The goal of our study] was to try to have an understanding of the long-term carbon dynamics of these lakes," Finlay said. He and his colleagues' work, published online July 24, shows that deep thermokarst lakes have taken more carbon and greenhouse gasses from the atmosphere than they have released since the last Ice Age.

However, Finlay cautions that the lakes have buried this carbon over a period of thousands of years. He says that scientists currently cannot predict if the "ice box" effect that rapidly freezes plant matter in the permafrost will continue to do so as atmospheric temperatures rise in the short term.
'/>"/>

Contact: Stephanie Xenos
sxenos@umn.edu
612-624-8723
University of Minnesota
Source:Eurekalert

Page: 1 2

Related biology news :

1. University of Houston study shows BP oil spill hurt marshes, but recovery possible
2. University of Alberta led research may have discovered how memories are encoded in our brains
3. BGI, University of Helsinki and Wuhan University sign a MOU concerning cooperation on genomics
4. Marshall University study may lead to new treatments for prostate cancer
5. University leads £6 million EU project to tackle obesity
6. A University of Tennessee professors hypothesis may be game changer for evolutionary theory
7. Life expectancy may affect when you get married, divorced, have kids: Queens University study
8. University of Toronto biologists predict extinction for organisms with poor quality genes
9. University of Minnesota invention helps advance reliability of alternative energy
10. Israel names Tel Aviv Universitys Renewable Energy Center a Center of Research Excellence
11. University of Minnesota startup offers game-changing energy solutions that reduce CO2 emissions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/23/2015)... BEDFORD, Mass., July 23, 2015 Aware, Inc. (NASDAQ: ... services, today reported financial results for its second quarter ended ... quarter of 2015 was $4.5 million, a decrease of 33% ...  Net income in the second quarter of 2015 was $0.3 ... million, or $0.04 per diluted share, in the same period ...
(Date:7/21/2015)... , July 21, 2015 Passwords ... as seen in the recent U.S. Office of ... solution to the infosec conundrum, but developers and ... stored. To address this dilemma, Biometrics-as-a-Service provider HYPR ... Biometric Tokenization SDK for third party integration. ...
(Date:7/9/2015)... SAN JOSE, Calif. , July 9, 2015 /PRNewswire/ ... human interface solutions, announced today that it will report ... 2015 on Thursday, July 30, 2015 after the close ... call for analysts and investors at 2:00 p.m. PT ... information.    To participate on the live ...
Breaking Biology News(10 mins):Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6HYPR Corp. Launches Industry First Biometric Tokenization Platform 2HYPR Corp. Launches Industry First Biometric Tokenization Platform 3HYPR Corp. Launches Industry First Biometric Tokenization Platform 4Synaptics to Report Fourth Quarter, Fiscal Year 2015 Results on July 30 2
... Apricots are important to Turkey, the country where more ... the world. Looking to unlock the mystery of apricots, ... genetic relationship between apricot varieties. New research from a ... genetic link between Turkish and Hungarian apricot cultivars, yielding ...
... a recent issue of HortTechnology , Purdue University researchers ... study of the effects of a technique called "bulb dipping" ... applied as sprays or media drenches, bulb crops can be ... were designed to determine if dipping Easter lily bulbs in ...
... the XXI century. Recent data point to more than a ... 300 million are clinically obese. What is more, the rates ... 155 million children and adolescents being overweight, of which 40 ... what point corporal morphology was influenced by genetics, on the ...
Cached Biology News:Genetic relationship between Hungarian and Turkish apricots confirmed 2Bulb dipping controls Easter lily growth 2The amount of adipose tissue should be taken into account in the fight against obesity 2The amount of adipose tissue should be taken into account in the fight against obesity 3
(Date:7/30/2015)... -- With over 60,000 customers across the globe, ISN improves the efficiency and effectiveness of ... than 60,000 safe and reliable contractors in over 80 countries. ... ... Over 60,000 Worldwide Customers In More ... Headquartered in Dallas, TX , ISN has additional offices ...
(Date:7/30/2015)... ST. LOUIS, July 30, 2015 ... period in 2014) , Reported sales were $697 ... of 2014.  Sales grew organically by 8%, and changes ... Recent acquisitions increased sales by 1%. , By ... 8% in Applied and 11% in SAFC Commercial. ...
(Date:7/30/2015)... ... ... As part of its 2015 growth plan and as a follow up to the recently ... Whitehouse Laboratories is pleased to announce that it has begun construction on a new Microbiological ... will be strictly dedicated to basic USP 51, USP 61, and USP 62 testing specific ...
(Date:7/29/2015)... Sanofi, a global and ... quarter of 2015. CEO Olivier Brandicourt ... in different businesses. Watch video interview ... Topics covered in the interview include:  ... Performance drivers - Diabetes ...
Breaking Biology Technology:ISN Reaches Over 60,000 Worldwide Customers 2ISN Reaches Over 60,000 Worldwide Customers 3Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 2Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 3Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 4Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 5Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 6Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 7Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 8Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 9Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 10Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 11Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 12Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 13Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 14Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 15Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 16Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 17Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 18Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 19Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 20Whitehouse Labs Formally Announces Plans to Open a Microbiological Laboratory 2
... , , , ... FOLD ) will announce second quarter 2009 financial results after the ... announcement will be followed by a live conference call and webcast ... Interested participants and investors may access the conference call at ...
... , ... Change at ... constant on a constant, ... 2009 basis rates H1 2009 basis rates, ...
... , ... in Cardiac Core Lab Industry , ... Rochester, NY (PRWEB) July 29, 2009 -- iCardiac Technologies, Inc., a leader in advanced ... of 45 million cardiac cycles for agency facing studies in a single month utilizing the ...
Cached Biology Technology:Amicus Therapeutics Announces Second Quarter 2009 Financial Results Release Date 2Sanofi-aventis Announces Second Quarter 2009 Results 2Sanofi-aventis Announces Second Quarter 2009 Results 3Sanofi-aventis Announces Second Quarter 2009 Results 4Sanofi-aventis Announces Second Quarter 2009 Results 5Sanofi-aventis Announces Second Quarter 2009 Results 6Sanofi-aventis Announces Second Quarter 2009 Results 7Sanofi-aventis Announces Second Quarter 2009 Results 8Sanofi-aventis Announces Second Quarter 2009 Results 9Sanofi-aventis Announces Second Quarter 2009 Results 10Sanofi-aventis Announces Second Quarter 2009 Results 11Sanofi-aventis Announces Second Quarter 2009 Results 12Sanofi-aventis Announces Second Quarter 2009 Results 13Sanofi-aventis Announces Second Quarter 2009 Results 14Sanofi-aventis Announces Second Quarter 2009 Results 15Sanofi-aventis Announces Second Quarter 2009 Results 16Sanofi-aventis Announces Second Quarter 2009 Results 17Sanofi-aventis Announces Second Quarter 2009 Results 18Sanofi-aventis Announces Second Quarter 2009 Results 19Sanofi-aventis Announces Second Quarter 2009 Results 20Sanofi-aventis Announces Second Quarter 2009 Results 21Sanofi-aventis Announces Second Quarter 2009 Results 22Sanofi-aventis Announces Second Quarter 2009 Results 23Sanofi-aventis Announces Second Quarter 2009 Results 24Sanofi-aventis Announces Second Quarter 2009 Results 25Sanofi-aventis Announces Second Quarter 2009 Results 26Sanofi-aventis Announces Second Quarter 2009 Results 27iCardiac Processes Volume of Data Equivalent to One Thousand Traditional Thorough QT Studies 2
... 96 wells. ELISA.Specific for total MMP-3: Recognizes ... cross-reactivity with MMP-1, -2, -9. Range: 3.75-120 ... cell culture supernatant, serum, plasma and tissue ... C. Category: Drug Screening & Cellular ...
... P Set from different human fetal ... organs maybe available upon request. ... from the whole set, and pay ... All Dr. P Set products ...
Homo sapiens inhibin, beta B (activin AB beta polypeptide) Antigen: Recombinant Protein(142~254aa)...
Self Closing Forceps...
Biology Products: