Tuesday, December 13, 2011

Don't plan on this solution

Chemically scrubbing CO2 from the air too expensive

From the link:

Someday the world may be in a position to lower the concentration of heat-trapping carbon dioxide in the atmosphere by chemically removing it from the air.

But not soon; the process is simply too expensive, say scientists from Stanford and MIT.

A study published in the , co-authored by Stanford and environmental researcher Jennifer Wilcox, concludes that if air-capture of carbon dioxide with chemicals is ever used, it will be far in the future.

For now, it is much more economically efficient to capture the carbon dioxide that enters the atmosphere from the smokestacks of large centralized sources such as , , fertilizer plants and .

After a detailed comparison, the research team concluded that the cost of removal from air is likely to be on the order of $1,000 per ton of carbon dioxide, compared with $50 to $100 per ton for current power-plant scrubbers.

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