Electric cars are exciting. The Wall Street Journal even had an article on a hybrid Formula One car that has an advantage by having to make fewer pit stops. However, electric cars only substitute one energy source for another. Gasoline, which is pretty energy dense, is replaced by batteries, which are not yet as efficient. But work is being done to improve batteries, by companies large and small. One of the large companies is IBM, which is beginning work on the next generation of battery that uses lithium as the anode and oxygen as the cathode. I can't explain any more than that, so go to Ecogeek to learn more.
Keep in mind this, though - the more batteries we use, the more electricity we have to generate. And for the time being, that means burning more coal.
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