Mr. DOUGLAS FAULKNER (Principal Deputy Assistant Secretary, Department of Energy): We think in six years, we can bring down the cost of ethanol from cellulosic material, to be cost competitive with gasoline.

NPR: Canadian Dreams of Ethanol Distilled from Grass

"It's not our long-term solution because of the competition with feed, and fuel competition, but it is prompting us to put into place a refueling infrastructure that could be used with cellulosic ethanol, " made from other types of plant material such as timber waste or switch grass.

CNN: Ethanol: Is it friend or foe?