HOME >> BIOLOGY >> NEWS
LLNL scientists to present global warming mitigation tool for ridding the atmosphere of excess carbon

SAN FRANCISCO, Calif.Researchers from the Lawrence Livermore National Laboratory today will present evidence that a new method for capturing carbon dioxide from power plants and placing it in the ocean has less impact on marine life than atmospheric carbon dioxide release or other global warming mitigation methods, such as direct injection and ocean fertilization.

LLNL earth scientists Greg Rau, Ken Caldeira and Kevin Knauss will showcase the research, called carbonate dissolution, today at the 2001 Fall Meeting of the American Geophysical Union in San Francisco. The proposal would hydrate the carbon dioxide in power plant flue gas with water to produce a carbonic acid solution. This solution would be mixed with limestone -- that neutralizes the carbon dioxide by converting it to bicarbonate and then would be released in the ocean. This process occurs naturally (carbonate weathering), but at a much slower pace.

"You are altering the chemistry of the carbon dioxide that causes a less drastic change to ocean pH (acidity) and is less biologically harmful than other methods such as direct injection ocean carbon sequestration and ocean fertilization," said Rau, an LLNL guest scientist who also works as a senior researcher with the Institute for Marine Sciences at the University of California, Santa Cruz.

Whether carbon dioxide is released in the atmosphere or the ocean, eventually about 80 percent of the carbon dioxide will end up in the ocean in a form that will make the ocean more acidic. While the carbon dioxide is in the atmosphere, it could produce adverse climate change. When it enters the ocean, the acidification could be harmful to marine life.

"If the carbon dioxide were reacted with crushed limestone and seawater, and the resulting solution released to the ocean, the limestone would buffer the pH (acidity) of the ocean and prevent it from becoming more acidic," Caldeira said. "Furthermore, the dissolved limestone
'"/>

Contact: Anne Stark
stark8@llnl.gov
925-422-9799
DOE/Lawrence Livermore National Laboratory
12-Dec-2001


Page: 1 2 3

Related biology news :

1. DNA lends scientists a hand, revealing new chemical reactions
2. Conference at UH opens doors for new scientists, engineers
3. Wisconsin scientists develop quick botox test
4. UCI scientists successfully target key HIV protein; breakthrough may lead to new drug therapies
5. Alaska scientists find Arctic tundra yields surprising carbon loss
6. UAF scientists discover new marine habitat in Alaska
7. Information system to help scientists analyze mechanisms of social behavior
8. Zoonotic diseases - European scientists unite to fight diseases
9. Israeli scientists reveal the plan of a key cellular machine
10. Study by Israeli scientists provides insight on DNA code
11. Computer scientists at UH developing nurturing computers

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com , ... biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European Hematology ... Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase 1 ...
(Date:6/28/2020)... ... June 25, 2020 , ... ... today announced that it has entered into a multi-year contract with Merus ... support their translational and clinical research strategy to discover and develop ground-breaking ...
(Date:6/23/2020)... ... June 23, 2020 , ... ... healthcare, and Renovagen Ltd, a UK supplier and manufacturer of innovative portable renewable ... testing operations in the fight against the COVID-19 pandemic in Zambia. , One ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... , ... July 29, 2020 , ... eSource has long ... This webinar will cover the history of eSource, the reasons it did not take ... to wearables, to site source, the industry is moving towards capturing data electronically for ...
(Date:7/18/2020)... ... ... After research model surgery and catheter implantation, the long journey of catheter maintenance and ... successful study, while protecting and accessing the catheter or device post-surgery is often undervalued ... Envigo in a live webinar on Wednesday, August 5, 2020 at ...
(Date:7/10/2020)... ... July 08, 2020 , ... Bode Technology, ... of laboratory operations through its COVID-19 testing service, Bode-CARES . Bode-CARES combines ... Bode-CARES provides a turnkey solution that includes a comprehensive collection and ...
(Date:7/7/2020)... ... , ... R3 International is now offering stem cell therapy for Alzheimers dementia ... on the patient's condition, treatment may be offered IV, intrathecal or with a combination. ... Alzheimers dementia, and the incidence continues to increase as individuals live longer. There is ...
Breaking Biology Technology:
Cached News: