Any data on how much France has slowed the decrease of global temperatures? Is there a “nuclear power to degrees saved” converter?

someone could calculate the savings in CO2 emissions over all the power generated by nuclear energy each year in France, since the power stations were built, vs coal plants (which would have been the alternative at the time)

I can't say if this question is asked in good faith.

Pretty obviously it's better than what the other European countries have been doing.