The problem with nuke power is that there is a lot of CO2 released from the refining and mining part of the uranium, and that would not make a difference from burning coal.
In another nuclear power thread here I asked someone (it might have been you, I can't remember) who made this same claim about lots of CO2 resulting from the production of nuclear fuel to kindly provide a source for their claim. No such source was ever provided. Carbon is not present in uranium ores, while it most definitely is present in coal. Uranium requires less to be mined and transported, so the only point in the process that uranium could possibly cause more CO2 to be produced than coal would be during its refining, and I can't see how that could be. I really would appreciate a source for your claim.