U.S. EPA figures indicate that in the second half of 2010, not a drop of cellulosic ethanol  was commercially blended with gasoline, according to a story on The New York Times' web site.

The analysis was done by the ClimateWire news service.

William Brown, an analyst with the U.S. Energy Information Administration's Office of Oil, Gas and Biofuels Analysis, said that the "curious string of zeros" for cellulosic sends up red flags for that year's total production. Overall, he said, the outlook appears grim.

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