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A couple of points of the N.Y. Times story:
For now, no one is sure what it will cost to capture and sequester carbon dioxide from coal plants because the first such project in the nation, at American Electric Power’s coal-fired plant in New Haven, W.Va., got under way only last month. At the moment, the process consumes 30 percent of the coal plant’s energy, but engineers are working to cut that in half.
Even so, experts expect the price to run to $60 a ton or more. But pure streams could be captured for the cost of drilling a natural gas well and compressing the gas into liquid form — perhaps $10 to $15 a ton, Dr. Friedmann of the Livermore laboratory said.