By some analyses the C02 output of nuclear is on a par with fossil fuels once the whole cycle is taken into account. Let's not forget that uranium has to be dug out of the ground, processed etc., power plants built which generally uses a lot of concrete, big holes dug in the ground to put the waste into (since we have no good way of reprocessing much of this waste). None of this comes cheap in C02 terms. I get it, you love nuclear, but supporters of nuclear often conveniently ignore.