My thinking is more around using thorium cycle nuclear reactors which consume almost all their input material [1].
1T of thorium produces the same amount of energy as 35T of uranium or 4166000T of coal. 83% of the waste products are inert, and 17% require only 300 years to reach background levels of radiation. Much safer than uranium cycle too.
This technology is very promising IMO, though given the general attitude people have towards nuclear, it's not surprising it is underdeveloped, more research is needed.