What: "The commercial viability of cellulosic ethanol is like the Tooth Fairy: Many believe in it, but no one ever actually sees it. After all, even with heavy federal subsidies, it took 13 years before the corn-ethanol sector was able to produce 1 billion gallons of fuel per year. Two and a half decades elapsed before annual corn-ethanol production reached 5 billion gallons, as it did in 2006. But now Congress is demanding that the cellulosic-ethanol business magically produce many times that volume of fuel in just 15 years. It's not going to happen."

Writer: Andrew K. Dart

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Date: Aug 8 2011 12:06 AM