| http://www.w3.org/ns/prov#value | - You are almost certainly right about comparing the savings from better gas mileage with the higher cost of a hybrid car (= money break-even), but the comparison I was trying to make is whole-life-cycle energy use (the total energy needed to build the car, including producing all materials, and operate it until it is scrap, divided by the total miles driven, vs. that same ratio for a conventional car
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