Two recent developments warrant a reexamination of the fuel ethanol issue. First, on August 20, 2012, the Environmental Protection Agency (EPA) issued a call for comments on suspending the renewable fuel standard (RFS), sometimes known as the ethanol mandate:

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Critics have long questioned the commitment of a growing share of a food source for fuel use. But the calls for change have grown louder because the widespread drought has killed more than 50% of the corn crop, driving prices to record levels — and U.S. ethanol is made mostly from corn.

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