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Bookmark and ShareDr Victoria Johnson is lead researcher on climate and energy at nef.

The capture and the long-term storage of CO2 is now central to plans for reducing CO2 emissions from large-scale fossil fuel uses. But new and controversial research argues the storage potential of CO2 may have been overestimated.

Carbon Capture and Storage (CCS) involves the capture of the greenhouse gas CO2 produced from the combustion of fossil fuels. The captured and compressed CO2 is then transported to a location for long-term storage. While several proposals for the storage phase exist, geological storage has received the most attention. This is partly because it is believed to have the least logistical constraints.

While discrete components of a geological CCS system are mature, there is a broad consensus [subscription required] that significant technological and cost improvements are necessary for commercial CCS deployment. But in the absence of large-scale CCS demonstration plants, the technology is still surrounded by a haze of uncertainty such as cost and speed of deployment.

Adding to these uncertainties, a new study published in The Journal of Petroleum Science and Engineering argues the potential for geological storage has been significantly overestimated. The results have prompted a very public and highly technical spat. A large body of experts from industry and academia have now contested the paper’s claims. Read the rest of this entry »

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nef employees blog in their personal capacity. The opinions expressed here do not necessarily reflect those of the new economics foundation.