The Truth About Ethanol

From the Christian Science Monitor editorial on the downside of ethanol subsidies...

Supporters of corn-based ethanol promote it as one way to cure America's fossil-fuel addiction. That's an exaggeration as high as an elephant's eye. The libertarian Cato Institute says it takes the equivalent of seven barrels of oil to produce eight barrels of corn-derived ethanol. Argonne National Laboratory, which studies ethanol for the Department of Energy, is more generous: for each unit of energy to grow, process, and transport corn ethanol, it yields 1.35 units of energy.

True, this high-octane fuel gives engines a kick, but it gets significantly lower miles per gallon, necessitating more frequent fill-ups. Ethanol's also more expensive than gasoline, and, as a blend, contributes to its high price.

Other downsides: Corn ethanol does reduce atmosphere-warming carbon emissions, but environmental organizations such as the Sierra Club say it actually is worse than gasoline in making smog. Meanwhile, builders of the nearly 200 ethanol manufacturing facilities under construction or planned are being tempted to power their facilities with coal. That's because it's less expensive than their current choice, natural gas. Coal power would wipe out or reduce the greenhouse gains of ethanol.

Read the entire editorial "Corn lobby's tall tale of a gas substitute" here.