One problem with that is that its not found everywhere, so it would have to be transported. The technology doesnt quite exist yet to make enough energy either. Nuclear however is proven and efficient.

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"To take from one, because it is thought his own industry and that of his father has acquired too much, in order to spare to others who (or whose fathers) have not exercised equal industry and skill, is to violate arbitrarily the first principle of association, "to guarantee to everyone a free exercise of his industry and the fruits acquired by it."

-Thomas Jefferson