France is 70% nuclear and the average co2 per capita still is ~10 tonnes per year... to get it to a sustainable level I think the target is under 3 tonnes according to the Paris agreement.
I think a lot of posters in the thread run a very simplified version of the world in their mind
3 tons per capita per year, globally, is 24 gigatons — that would only be a 30% or so reduction from the status quo.
We need a 99.9% reduction to be long-term sustainable; that's 4375 grams of CO2 per person per year. If there was no carbon capture, it would be at the level of "everything everywhere except for North Korea" or "everything in every country except for land-use changes to grasslands"
Thinking of simplification, France is ~70% nuclear electricity, which I emphasise because I'd already noted a roughly 10x gap between worldwide electrical and worldwide all-forms power.
I think a lot of posters in the thread run a very simplified version of the world in their mind