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Battery manufacture and disposal are also polluting. We will run out of oil, it is only a matter of time. The only real viable substitute is Hydogen. Besides being plentiful in the universe, hydrogen is non polluting. Burn hydrogen and you get H2O, so it is re-newable also.

This planet is almost 75% water, it is inconceivable we could not use it to produce hydrogen on a massive scale so we could use it.

Gasoline was very useful because of its burn rate, hydrogen has a better burn rate than gasoline.