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. The foreground bar height indicates the EWe of each state, with the portion of ground and surface water indicated by color. Each state illustrates a significantly different degree of water dependence year by year.
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