First tortilla prices, now water shortages? More ethanol costs
Ethanol production only makes that progress worse. While the ethanol industry claims that each gallon of ethanol produced consumes three gallons of water, a 2005 Minnesota study showed the ratio was more like 4.5 gallons of water per gallon of ethanol. As more areas see falling water tables due to excessive use and insufficient rainfall to replenish aquifers, the issue of ethanol production is likely to become an even bigger issue. Corn ethanol is increasingly looking like a very short term expedient at best and at worst maybe a solution worse than the original problem.
[Source: St. Louis Post Dispatch]
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