We've had nuclear power since the 1950s with a boom in the 60s and 70s. Since then annual carbon emissions are up 6.5x (https://ourworldindata.org/grapher/annual-co2-emissions-per-...)

It doesn't seem to be fixing things and I suspect never will. Personally I'd go with carbon pricing and let the market sort which tech to use.

Building of new nuclear power plants effectively ended in the US and Europe in 1980s. Instead of nuclear power plants, coal power has expanded. Later after 2000 gas started to replace coal for electricity generation. So the rise in carbon emissions not suprising.

Also after 2005 China started to by big player in CO2 emissions, but CO2 per capita is still lower in China then in US.

https://ourworldindata.org/co2-emissions

I too would like to see carbon pricing, but in all countries, because otherwise countries not paying price on carbon would get big competetive advantage.