How much does driving fuel efficent cars cut Co2 emissions over driving gasoline powered cars?

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  1. 0 Votes

    This depends on the kind of car and what kind of fuel is used to power it. If the car uses less fuel, like a hybrid or electric car, then it will produce less CO2.

    You can compare the energy output of alternative fuels to traditional gas here: http://en.wikipedia.org/wiki/Gasoline_gallon_equivalent

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