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Curiosities: The future of fuel: Filling up with ‘grassoline’

Q. We keep hearing about alternative fuels. What will be the most likely fuel to replace gasoline?
A. Today, ethanol is a fuel additive used to replace or decrease the need for fossil fuels in trucks, automobiles and other engines. Most of this ethanol comes from the sugars within corn kernels, but the search for other sources of sugar is under way.