National Academy of Science states CCS triggers earthquakes: calls CCS “risky” and “likely unsuccessful”

Posted by adminB on 27th June 2012

Just published in the Proceedings of the National Academy of Science. This is the strongest scientific study showing that CCS triggers earthquakes.

 

Earthquake triggering and large-scale geologic storage of carbon dioxide
1.   Mark D. Zoback <http://www.pnas.org/search?author1=Mark+D.+Zoback&sortspec=date&submit=Submit> a <http://www.pnas.org/content/109/26/10164.abstract?etoc#aff-1> ,1 <http://www.pnas.org/content/109/26/10164.abstract?etoc#corresp-1>  and
2.   Steven M. Gorelick
<http://www.pnas.org/search?author1=Steven+M.+Gorelick&sortspec=date&submit=Submit> b <http://www.pnas.org/content/109/26/10164.abstract?etoc#aff-2>
+ <http://www.pnas.org/content/109/26/10164.abstract?etoc>  Author Affiliations
1.    Departments of aGeophysics and
2.    bEnvironmental Earth System Science, Stanford University, Stanford, CA 94305
1.     Edited by Pamela A. Matson, Stanford University, Stanford, CA, and approved May 4, 2012 (received for review March 27, 2012)


Abstract
Despite its enormous cost, large-scale carbon capture and storage (CCS) is considered a viable strategy for significantly reducing CO2 emissions associated with coal-based electrical power generation and other industrial sources of CO2 [Intergovernmental Panel on Climate Change (2005) IPCC Special Report on Carbon Dioxide Capture and Storage. Prepared by Working Group III of the Intergovernmental Panel on Climate Change, eds Metz B, et al. (Cambridge Univ Press, Cambridge, UK); Szulczewski ML, et al. (2012) Proc Natl Acad Sci USA 109:5185–5189]. We argue here that there is a high probability that earthquakes will be triggered by injection of large volumes of CO2 into the brittle rocks commonly found in continental interiors. Because even small- to moderate-sized earthquakes threaten the seal integrity of CO2 repositories, in this context, large-scale CCS is a risky, and likely unsuccessful, strategy for significantly reducing greenhouse gas emissions. (emphasis ours)

You can get the full PNAS article here: http://goo.gl/bdGuI

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