Navigation Links
A new global warming culprit: Dam drawdowns
Date:8/7/2012

VANCOUVER, Wash. Washington State University researchers have documented an underappreciated suite of players in global warming: dams, the water reservoirs behind them, and surges of greenhouse gases as water levels go up and down.

Bridget Deemer, a doctoral student at Washington State University-Vancouver, measured dissolved gases in the water column of Lacamas Lake in Clark County and found methane emissions jumped 20-fold when the water level was drawn down. A fellow WSU-Vancouver student, Maria Glavin, sampled bubbles rising from the lake mud and measured a 36-fold increase in methane during a drawdown.

Methane is 25 times more effective than carbon dioxide at trapping heat in the atmosphere. And while dams and the water behind them cover only a small portion of the earth's surface, they harbor biological activity that can produce large amounts of greenhouse gases. There are also some 80,000 dams in the United States alone, according to the U.S. Army Corps of Engineers National Inventory of Dams.

"Reservoirs have typically been looked at as a green energy source," says Deemer. "But their role in greenhouse gas emissions has been overlooked."

Deemer and Glavin's findings will be on display this week in a poster session at the national meeting of the Ecological Society of America in Portland.

Their efforts are part of a larger attempt to appreciate the role of lakes, reservoirs and streams in releasing greenhouse gases. A study published last year in the journal Science conservatively estimated that the ability of terrestrial ecosystems to act as carbon sinks, storing greenhouse gases, could be one-fourth less than estimated once emissions from reservoirs are considered.

The WSU-Vancouver work is the first to actually demonstrate and quantify the relationship between water-level drawdowns and greenhouse gas releases, says John Harrison, Deemer and Glavin's advisor and an assistant professor of Earth and Environmental Sciences.

T
'/>"/>

Contact: Eric Sorensen
eric.sorensen@wsu.edu
206-799-9186
Washington State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. MSU to lead new global food security effort
2. Research links extreme summer heat events to global warming
3. Global CO2 emissions continue to increase
4. Stanford researchers calculate global health impacts of the Fukushima nuclear disaster
5. Global warming harms lakes
6. How to make global fisheries worth 5 times more: UBC research
7. ASU ecologist receives prestigious global award for water research
8. NOAA plankton surveys, second longest in the North Atlantic, add to new global effort
9. No matter the drilling method, natural gas is a much-needed tool to battle global warming
10. Building global collaboration for biodiversity intelligence
11. Revealing climate change website wins global award
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... finally be able to purchase fuel cell cars from ... most of the cars will run on hydrogen made ... global warming. , Now scientists at Stanford University have ... AAA battery to produce hydrogen by water electrolysis. ... that split liquid water into hydrogen and oxygen gas. ...
(Date:8/22/2014)... birds and the bees. But that old expression ... The fertilization process for flowering plants is particularly ... and female reproductive cells. New research from an ... and including Carnegie,s Wolf Frommer, David Ehrhardt, and ... process that guides flowering plant fertilization. It is ...
(Date:8/21/2014)... Ga. An international team of scientists including researchers from ... Brassica napus commonly known as canolain the journal Science ... the plant, which is used widely in farming and industry. ... its native Europe, but the winter crop is increasingly cultivated ... its naturally low levels of saturated fat and rich supply ...
Breaking Biology News(10 mins):Stanford scientists develop a water splitter that runs on an ordinary AAA battery 2Stanford scientists develop a water splitter that runs on an ordinary AAA battery 3Calcium and reproduction go together 2Canola genome sequence reveals evolutionary 'love triangle' 2
... pledged to participate in ELIXIR ( www.elixir-europe.org ), a ... research in Europe. With one of Europe,s larger economies ... infrastructure is well placed to continue its excellent progress. ... sustainable infrastructure for managing biological data to support research ...
... the "fuel" that drives electric cars in effect, the vehicles, ... must be avoided. A battery,s "comfort zone" lies between 20C and ... summer can push a battery,s temperature well beyond that range. The ... of 45C instead of 35C halves its service life. And batteries ...
... of Medicine have identified five rare mutations in a single gene ... an autism spectrum disorder (ASD). Mutations in the AFF2 gene, ... why autism spectrum disorders affect four times as many boys as ... out of 202) of boys examined. Mutations in X chromosome genes ...
Cached Biology News:Italy pledges to be part of ELIXIR research infrastructure 2Keeping electric vehicle batteries cool 2Mutations in autism susceptibility gene increase risk in boys 2
(Date:8/22/2014)... The identification of protein-coding variants ... accelerated by exome sequencing. Built on Roche NimbleGen’s ... SeqCap EZ Developer system has been a proven ... additionally present how he achieved coverage statistics similar ... mouse exome kits. With over 236,000 SNPs and ...
(Date:8/22/2014)... 22, 2014 “Our nation's healthcare ... a national disgrace. Furthermore, every governmental and professional ... current, deplorable state of unorganized dysfunction shares in ... to merely serve as a device to use ... colossal failure(s) that have accumulated through the years ...
(Date:8/21/2014)... 21, 2014  BioSpecifics Technologies Corp. (NASDAQ: ... in class collagenase-based products marketed as XIAFLEX ® ... U.S. and XIAPEX ® in the EU, ... randomized, double-blind Phase 2a study of CCH for ... panniculopathy. The results showed that all three doses ...
(Date:8/21/2014)... 21, 2014 DNA vaccine pioneer ... its development of JRC-LAMP-vax, an innovative and safe potential ... IC studies began this month in Hawaii, moving the ... , The Japanese red cedar releases pollen that causes ... Mountain Cedar pollen wreaks similar havoc in Colorado, New ...
Breaking Biology Technology:Efficient Identification of Protein-Coding Variants in a Model Organism Through Exome Sequencing, New Webinar Hosted by Xtalks 25 Great Mistakes in Healthcare and How to Fix Them by Dr. Ira Williams 2BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 2BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 3BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 4BioSpecifics Technologies Corp. Announces Positive Data from Phase 2a Study of CCH for Treatment of Cellulite 5Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 2Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 3Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 4
... , ... want to increase sales success need to understand Key Performance Indicators (KPIs) that gauge ... to utilize KPIs to generate more business and income in a new article at ... ...
... Creating catalysts that can operate efficiently and last a ... from the lab bench to the assembly line. The precious ... platinum has two major downsides: It is expensive, and it ... new study, chemists at Brown University report a promising advance. ...
... May 24 Newport Corporation (Nasdaq: NEWP ) today announced ... May 25, 2010 , at 3:30 pm Pacific time (6:30 ... C Room of Loews Santa Monica Beach Hotel in Santa Monica, Calif. ... The 25-minute presentation by Senior ...
Cached Biology Technology:Use Key Performance Indicators to Generate Sales Success Says Expert Lenann McGookey Gardner 2Brown chemists report promising advance in fuel-cell technology 2Newport Corporation to Present at B. Riley & Co. Investor Conference Tomorrow, May 25 2
... Channel Cell Lines ,High Quality, Functionally-Validated, Ion ... well known for having a critical role ... have a key function in pain, CNS ... channels have been investigated in therapeutic areas, ...
Mouse polyclonal antibody raised against a partial recombinant CD320. NCBI Entrez Gene ID = 51293...
Mouse monoclonal antibody raised against a partial recombinant CHD8. NCBI Entrez Gene ID = CHD8...
Mouse monoclonal antibody raised against a partial recombinant DENR. NCBI Entrez Gene ID = DENR...
Biology Products: