"When Jesus, according to Biblical reports, converted approximately 150 gallons of water into an equivalent quantity of wine, his conversion rate was about a cup of ethanol per gallon of water invested (given the typical alcohol content of wine). Compare that to current processes that use irrigated corn as their carbon source and get less than a teaspoon of ethanol for each gallon of water consumed."
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Since we're "earning points" for quotes, I think I should do more than just quote. A bit of reflection is in order.
This bit of technological evaluation of the wine-making process at the Cana wedding is perhaps just a gimmick that the writer uses to get our attention. Kind of cute. At least it caught my eye.
But there's also material here for theological/ecological reflection on stewardship and the good use of creation. In addition to the water to ethanol ratio, there are issues concerning the large amount of oil used in ethanol production (destroying the energy rationale for corn ethanol) and the need to use cropland for food instead of for ethanol fuel consumption (as food shortages begin to spread).
"The folly of turning water into fuel", Alternet, March 22, 2008: http://www.alternet.org/water/79957/