Study Finds Regional Variations in Irrigation Practices Can Push Corn Ethanol Water Requirements 3x Higher Than Earlier Estimates; Need to Account for Regional Specifics in Mandates
Green Car Congress
APRIL 8, 2009
Top: County-level corn production and ethanol facilities in 2007. Bottom: EWe and TCW of each state as of 2007. Among the 19 ethanol-producing states in 2007, Ohio shows the lowest EWe of 5 L L -1 , whereas California has the highest EWe of 2,138. The graph illustrates the proximity of ethanol facilities to corn production.
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