Navigation Links
American Chemical Society podcast: Small dams create greenhouse gas 'hot spots'

The latest episode in the American Chemical Society's (ACS') award-winning Global Challenges/Chemistry Solutions podcast series questions the "green" reputation of small hydroelectric dams.

Based on a report by Andreas Maeck, Ph.D., in the ACS journal Environmental Science & Technology, the new podcast is available without charge at iTunes and from

Maeck explains that the large reservoirs of water behind the world's 50,000 large dams are a known source of methane. Like carbon dioxide, methane is one of the greenhouse gases, which trap heat near Earth's surface and contribute to global warming. Methane, however, has a warming effect 25 times more powerful than carbon dioxide. The methane comes from organic matter in the sediments that accumulate behind dams. That knowledge led to questions about hydroelectric power's image as a green and nonpolluting energy source. Maeck's team decided to take a look at methane releases from the water impoundments behind smaller dams that store water less than 50 feet deep.

They describe analysis of methane release from water impounded behind six small dams on a European river. "Our results suggest that sedimentation-driven methane emissions from dammed river hot spot sites can potentially increase global freshwater emissions by up to 7 percent," said the report. It noted that such emissions are likely to increase due to a boom in dam construction fostered by the quest for new energy sources and water shortages.


Contact: Michael Bernstein
American Chemical Society

Page: 1

Related biology news :

1. American College of Rheumatology releases first classification criteria for polymyalagia rheumatica
2. Common North American frog identified as carrier of deadly amphibian disease
3. UC research tests new tool to guide reintroduction of the American chestnut
4. American Society of Plant Biologists honors early career women scientists
5. Scripps Research Institute Professor Gerald F. Joyce elected to American Academy of Arts & Sciences
6. Professor known for work with hunter-gatherers elected to American Academy of Arts and Sciences
7. Elsevier selected as new publisher of the American Journal of Geriatric Psychiatry
8. New study published on fertility awareness among American university students
9. The American Society for Microbiology honors Ellen Jo Baron
10. Steve Fisher joins American Health IT LLC as VP of Operations
11. University of Tennessee anthropologists find American heads are getting larger
Post Your Comments:
(Date:6/30/2017)... ARLINGTON, Va. , June 30, 2017 /PRNewswire-USNewswire/ ... a leading developer and supplier of face and ... the ATA Featured Product provider program. ... created an innovative way to monitor a driver,s ... benefit greatly from being able to detect fatigue ...
(Date:6/14/2017)...  IBM (NYSE: IBM ) is introducing several innovative ... to developing collaboration between startups and global businesses, taking place ... the event, nine startups will showcase the solutions they have ... France is one ... a 30 percent increase in the number of startups created ...
(Date:5/16/2017)... , May 16, 2017  Veratad Technologies, LLC ... of online age and identity verification solutions, announced today ... Identity Conference 2017, May 15 thru May 17, 2017, ... Building and International Trade Center. Identity ... globe and in today,s quickly evolving digital world, defining ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... of a complex biological network, a depiction of a system of linkages and ... Dmitry Korkin, PhD, associate professor of computer science at Worcester Polytechnic Institute (WPI) ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... the pharmaceutical and biotechnology industries to improve patient outcomes and quality of life, ... in analytical testing are being attributed to new regulatory requirements for all new ...
(Date:10/11/2017)... ... 11, 2017 , ... ComplianceOnline’s Medical Device Summit is back for its 4th ... in San Francisco, CA. The Summit brings together current and former FDA office bearers, ... and government officials from around the world to address key issues in device compliance, ...
(Date:10/11/2017)... TX (PRWEB) , ... October 11, 2017 , ... ... August compared the implantation and pregnancy rates in frozen and fresh in ... contribution of progesterone and maternal age to IVF success. , After comparing the ...
Breaking Biology Technology: