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A good benchmark for nuclear vs wind turbine is France (2nd country with the most installed nuclear power) and Danemark (Can run almost entirely on wind turbines). Well, France is producing about a factor of 2 or 3 less CO2 than Danemark.

Another important point. France is producing still far too much CO2 because nuclear is just about 20% of its energy consumption.

So let's not focus on electricity, but let's stop using fuel for transportation and gas for heating.

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Personal transportation is one thing, but the figures for overseas shipping, airplane exhaust, and animal farming constitute well over 30% of total GHG emissions. It's scary. Nevertheless, eliminating fossil fuels in personal transportation (about 13%) is a necessary step.

Another benchmark: Canada's largest province, Ontario, gets 60% of its electricity from nuclear. It has more than twice the population of Denmark, and one-fifth that of France.

EDIT: I misunderstood. I see now you were comparing a nuclear-dominant country with a wind-dominant one.

Airplane is just 2% of world CO2 emissions. It makes sense of course to reduce it, but at the world scale, farming and coal are the real burden!

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