Navigation Links
UAF researchers to present at AGU press briefing
Date:12/16/2008

ticatlas.org/">http://www.arcticatlas.org/

Scientists find increased methane levels in Arctic Ocean

A team led by International Arctic Research Center scientist Igor Semiletov has found data to suggest that the carbon pool beneath the Arctic Ocean is leaking.

The results of more than 1,000 measurements of dissolved methane in the surface water from the East Siberian Arctic Shelf this summer as part of the International Siberian Shelf Study show an increased level of methane in the area. Geophysical measurements showed methane bubbles coming out of chimneys on the seafloor.

"The concentrations of the methane were the highest ever measured in the summertime in the Arctic Ocean," Semiletov said. "We have found methane bubble clouds above the gas-charged sediment and above the chimneys going through the sediment."

The new data indicates the underwater permafrost is thawing and therefore releasing methane. Permafrost can affect methane release in two ways. Both underwater and on land, it contains frozen organic material such as dead plants and animals. When permafrost thaws, that organic material decomposes, releasing gases like methane and carbon dioxide. In addition, methane, either in gas form or in ice-like methane hydrates, is trapped underneath the permafrost. When the permafrost thaws, the trapped methane can seep out through the thawed soil. Methane, a greenhouse gas 20 times more powerful than carbon dioxide, is thought to be an important factor in global climate change.

The East Siberian Arctic Shelf is a relatively shallow continental shelf that stretches more than 900 miles into the Arctic Ocean from Siberia. The area is a year-round source of methane to the globe's atmosphere. However, until recently, scientists believed that much of the area's carbon pool was safely insulated by underwater permafrost, which is, on average, 11 degrees Celcius warmer than surface permafrost.

Semiletov s
'/>"/>

Contact: Marmian Grimes
marmian.grimes@uaf.edu
907-474-7902
University of Alaska Fairbanks
Source:Eurekalert

0

GOOD

Page: 1 2 3 4 5 6

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/14/2009)... be transmitted by sneezing, touching, or for Tasmanian ... habit that may have driven the dinosaurs to extinction ... Upcroft, a member of f1000 Biology, highlights the ,paleobiological ... PLoS One. This led them to deduce that a ... bones seen in many tyrannosaurid fossils. , The parasite,s ...
(Date:12/14/2009)... ON, December 10, 2009If you are spending the holidays ... wondering whether you would be better off with another ... , A research team from McMaster University and ... among cichlids, a species that lives in groups, members ... The results appear in the current issue of ...
(Date:12/14/2009)... Convention on Climate Change taking place in Copenhagen, ... Trend, event on Sunday evening to provide a ... of the new ,Environmental Atlas of Europe,. , ... of the European Environment Agency (EEA), the UN ... of short films showing the significance of environmental ...
Breaking Biology News(10 mins):'Environmental Atlas of Europe' unveiled at COP15 2Arete Therapeutics Presents Positive Clinical and Preclinical Data for AR9281 48285 1Arete Therapeutics Presents Positive Clinical and Preclinical Data for AR9281 48285 2Arete Therapeutics Presents Positive Clinical and Preclinical Data for AR9281 48285 3Arete Therapeutics Presents Positive Clinical and Preclinical Data for AR9281 48285 4AssureRx Adds New CEO 12542 1AssureRx Adds New CEO 12542 2RainEarth Applies for Patent for Second Generation Blood Dialysis Equipment 48282 1RainEarth Applies for Patent for Second Generation Blood Dialysis Equipment 48282 2RainEarth Applies for Patent for Second Generation Blood Dialysis Equipment 48282 3
... to buy a bag of carbon nanotubesin quantities from ... = approximately 220 pounds)? With a credit card and ... doing enough to ensure the safety of these materials ... products currently on the market? , The ...
... infections, may be a strong weapon in the ... to an article in the November issue of ... seen as exotic diseases, but this is changing ... infections are a major problem for the immunocompromised, ...
... a controversial hypothesis of biodiversity and species abundance is the ... November 2007 issue of the journal Nature. The authors ... the world,s most vulnerable ecosystems -- tropical forests and coral ... so-called "neutral theory of biodiversity." "We,re helping to refine ...
Other Biology News:US government delays nanotechnology safety measures 2Gamma interferon could aid fight against fungal infections 2Why do so many species live in tropical forests and coral reefs? 2Why do so many species live in tropical forests and coral reefs? 3Why do so many species live in tropical forests and coral reefs? 4
(Date:12/15/2009)... China, Dec. 15 /PRNewswire-Asia-FirstCall/ -- China Sky One,Medical, ... (Nasdaq: CSKI ), a,leading fully integrated pharmaceutical ... Republic of China ("PRC"), today,announced that the Company ... the 2009,Edition of the National Basic Medical Insurance, ... The 30 medicines treat ...
(Date:12/15/2009)... Microscopy (AFM) have been developed and are opening up a ... The NeedleProbes’ cylindrical geometry enables researchers to measure surface ... all in a single force distance curve. , ... ... diameter NeedleProbes are enabling unique measurements at the ...
(Date:12/15/2009)... 15 On January 20th, 2010, the ... Medical Publication Professionals (ISMPP) will be held at ... More than 100 attendees are expected at this ... professionals, editors, publishers, medical writers and medical agencies ... and the impact of guidelines and regulations such ...
(Date:12/14/2009)... 14 Array BioPharma Inc. (Nasdaq: ... today announced that they entered into an agreement ... glucokinase activator program, including ARRY-403, currently being tested ... with Type 2 diabetes. ,, Under ... an upfront payment of $60 million and additional ...
Breaking Biology Technology:China Sky Medical, Inc. Has 30 Medicines that will Be Included in China's National Insurance Directory 2China Sky Medical, Inc. Has 30 Medicines that will Be Included in China's National Insurance Directory 3New Constant Diameter NeedleProbes™ with Unique Ability to Measure Liquid Surface Properties by AFM 2New Constant Diameter NeedleProbes™ with Unique Ability to Measure Liquid Surface Properties by AFM 3Announcing ISMPP EU 2010 - the First European Meeting of the International Society for Medical Publication Professionals, Royal College of Physicians, London, UK, January 20, 2010 2Array BioPharma and Amgen Partner in Type 2 Diabetes 2Array BioPharma and Amgen Partner in Type 2 Diabetes 3Array BioPharma and Amgen Partner in Type 2 Diabetes 4Array BioPharma and Amgen Partner in Type 2 Diabetes 5Array BioPharma and Amgen Partner in Type 2 Diabetes 6Array BioPharma and Amgen Partner in Type 2 Diabetes 7
... press conference,Orange Romania & Medic4all launched Medic4you, the ... is the fundamental value of the quality of ... together the Medic4you service in,Romania," stated Christos Phocas, ... Medic4you is a telemedicine service based on ...
... today announced that its Analyst Day in New York ... webcast live on the investor relations section of,its website ... review the company,s business,strategy, marketing plan and research and ... 5, 2008 beginning at,approximately 12:30 p.m. EST and ending ...
... Research Effort Includes Development and Application of PulmoSmartChip - ... Custom Molecular Phenotyping Assay for Lung Disease, ... Board: WGBS), a leading developer of state-of-the-art,gene expression, genotyping, ... the National Institutes of Health (NIH) has awarded a,team ...
Other Biology Technology:Orange and Medic4all Launched the World's First Cellular Tele-Health Service 2Cephalon, Inc. to Webcast Analyst Day 2Cephalon, Inc. to Webcast Analyst Day 3NIH Awards Approximately $3M Grant for Research Involving WaferGen's SmartChip(TM) Real-Time PCR System at the University of Pittsburgh 2NIH Awards Approximately $3M Grant for Research Involving WaferGen's SmartChip(TM) Real-Time PCR System at the University of Pittsburgh 3NIH Awards Approximately $3M Grant for Research Involving WaferGen's SmartChip(TM) Real-Time PCR System at the University of Pittsburgh 4NIH Awards Approximately $3M Grant for Research Involving WaferGen's SmartChip(TM) Real-Time PCR System at the University of Pittsburgh 5NIH Awards Approximately $3M Grant for Research Involving WaferGen's SmartChip(TM) Real-Time PCR System at the University of Pittsburgh 6