Biofuel production is often touted as a boon to rural development, but a University of Iowa engineering professor is worried about the effect of corn ethanol plants on his and other states' water supplies.

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In the wake of high gasoline prices, the ethanol industry is making the rounds in Washington, and they want you to believe that the Renewable Fuel Standard has lowered gasoline prices by up to $.89 per gallon. This would be remarkable, if it were true.

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