Wednesday, November 24, 2010

Allègre

from: Claude Allègre, L’imposture climatique, Plon, 2010.

As for CO2, the idea is to capture CO2 as it leaves the factory, then to inject the CO2 underground and thus imprison it. The idea is that, in the long term, this CO2 will transform itself by reacting with rock, into sandstone. It is a way of trying to reproduce artificially the mechanism by which nature changed the proportion of CO2 in the atmosphere, which was at 80 % some 4,4 billion years ago, into what it is today...

... If one were to artificially destroy all the sandstone currently present in the earth’s crust, the atmosphere would be 80% CO2, and the pressure at ground level would be that of 5 000 meters under the sea! We are currently trying to imprison CO2 in experimental sites in Canada, Norway, Algeria, Germany, Poland, Australia. To date, the major hurdle is that of capturing the CO2 as it «leaves» the factory. One needs to separate the CO2 from other gases. One knows how to do it but it is extremely expensive, some 80$ per tonne for separation (called ‘capture’) and 5$ for burial. The United States and China have immense coal reserves, which they will exploit in any event. Steve Chu, Secretary of State for Energy in he United States, made no bones about it in a recent speech. «One has to capture and bury CO2 as it leaves the factory», he said.* And announced the creation of a Chinese-American research center on the subject. Europe should also join in this scientific competition, if only because Poland, the Czech Republic and Germany have important coal reserves.

Science, November 2009.

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