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Supertopics:
Energy Returned on Energy Invested (EROEI or EROI)
Ethanol Production As Inefficient

Ethanol Production Has a Low EROEI

Subtopics:
Pimentel and Patzek's ethanol study
ethanol not worth the energy
webMark JohnsonAssociated Press2005-07-17
ethanol uses more energy than it makes
webElizabeth SvobodaSan Francisco Chronicle2005-06-27