Geochemist raises questions about carbon sequestration

As carbon dioxide levels in the atmosphere rise, policy makers and scientists are looking at new ways to tackle the problems associated with the greenhouse gas.

One method under much discussion is carbon capture and storage (CCS), otherwise known as carbon sequestration. CCS, a newly developing technology, involves injecting carbon dioxide underground to remove it from the Earth's atmosphere.

Donald J. DePaolo, a distinguished geochemist from the University of California, Berkeley and the Lawrence Berkeley National Laboratory, raised new questions about carbon sequestration today during the Goldschmidt Conference hosted by the University of Tennessee, Knoxville, and Oak Ridge National Laboratory.

DePaolo's presentation focused on the significance of geochemistry in analyzing the effectiveness of proposed carbon sequestration. He examined how current plans for carbon storage could benefit by paying more attention to the critical role of underground . For instance, when carbon dioxide comes into contact with water in underground aquifers, it can form a weak acid that will start to dissolve minerals in the rocks. According to DePaolo, research is needed to analyze how fast such reactions proceed and which minerals are affected to better gauge the efficiency of carbon storage projects.

DePaolo's presentation, entitled " geochemistry," aims to open encouragement for other geochemists to start addressing the importance of geochemical questions in programs.


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Provided by University of Tennessee at Knoxville
Citation: Geochemist raises questions about carbon sequestration (2010, June 16) retrieved 19 October 2019 from https://phys.org/news/2010-06-geochemist-carbon-sequestration.html
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Jun 16, 2010
Nothing needs to be done to sequester carbon. The extant processes work just fine. Especially since Carbon does not drive warming. As we all know from the FACTS; atmospheric CO2 increases after the warming episodes, not before.

Jun 16, 2010
So, if I just let my lawn grow, can I call it "Carbon Sequestration" and tell my neighbors that I'm just trying to save the planet? (Ranther than just being too darn lazy to care for my lawn.)

Jun 16, 2010
Nothing needs to be done to sequester carbon. The extant processes work just fine. Especially since Carbon does not drive warming. As we all know from the FACTS; atmospheric CO2 increases after the warming episodes, not before.


nice to see people who understand the cause effect reality. CO2 is an effect not a cause of warming. kudos to you!

Jun 18, 2010
NB: Warming is not the only problem with excessive atmospheric carbon.

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