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Ethanol industry turns to plant residue, scraps

The drought heightened criticism about the vast amount of corn used to brew up ethanol rather than be transformed into animal feed or other foods.

By DAVID PITT Published: February 1, 2013
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DES MOINES, Iowa — After decades of talk, the ethanol industry is building multimillion dollar refineries in several states that will use corn plant residue, wood scraps and even garbage to produce the fuel additive.

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