Iceland wants to make a full conversion and plans to modify its cars, buses and trucks to run on renewable energy -- with no dependence on oil. Iceland has already started by turning water into fuel -- hydrogen fuel. Here's how it works: Electrodes split the water into hydrogen and oxygen molecules. Hydrogen electrons pass through a conductor that creates the current to power an electric engine. Hydrogen fuel now costs two to three times as much as gasoline, but gets up to three times the mileage of gas, making the overall cost about the same. As an added benefit, there are no carbon emissions -- only water vapor. By the middle of this century, all Icelanders will be required to run their cars only on hydrogen fuel, meaning no more gasoline. Icelanders say they're committed to showing the world that by making fuel from water, it is possible to kick the oil habit.
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