Photo: New Ethanol Plants to Be Fueled by Cow Manure

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Two new ethanol plants planned in the U.S. will be powered entirely by cow manure. One plant scheduled to open in Nebraska will incorporate ethanol production with the operation of a feedlot, like the one pictured above, where manure will be collected and used to process corn into alternative fuel.

Photograph courtesy John Nienaber/USDA

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