Quibbling about which technology is cleaner or greener is a huge waste of time because the price of energy in this country and elsewhere does not reflect its real cost to society and the environment.
https://www.nature.com/articles/d41586-017-07510-3The one big thing that would help nuclear, renewables, energy efficiency, hydrogen, energy storage, carbon sequestration and other greener technologies would be to put an economy-wide carbon pricing scheme (e.g., carbon tax or cap and trade program) into place. This would assign an accurate price to energy production and motivate businesses, institutions, financial sector and governments to start addressing the externalities of climate change in a meaningful, prodcutive way. Otherwise, we’ll just continue to limp along with modest incremental improvements in technology here and there.
In the short term, look no further than the great state of Illinois for an example of how environmentalists, utilities, nuclear power generators, government officials, labor unions and community groups can work together to enact comprehensive energy legislation that addresses climate change. The new law will keep the existing nukes open, while spurring further development of renewables and providing resources to coal-impacted communities to transition to more resilient economies.
https://www.cnbc.com/2021/11/20/illinois-nuclear-power-subsidy-of-694-million-imperfect-compromise.html