While nuclear (fission) does not produce carbon emissions, it is much more expensive than converting existing coal plants to Natural Gas. This conversion is happening as a matter of course. It is being slowed because of politics on the left and right. Nuclear Fusion may join solar, wind and thermal, as an energy of the future. I'm just advocating for taking advantage of low hanging fruit, that would help our environment, impact global warming and produce positive impacts on the economy for at least a few decades.