Someone already beat me to answering for the most part.... nuclear safety and nuclear waste disposal are most definitely concerns, but solutions to each of those are well in hand as was mentioned below. Nuclear energy is certainly not a zero impact energy source, but one I think that has less net impact than coal and oil-fired power generation.thats what makes sense to me. get the impression you're a lot more familiar with much of this than me, i'm and investment guy so i've looked at data, read a few papers, and been saddled with esg bs. when it comes to some of the science there's so much depth to things i dont know - one question i'm not sure you can answer re nuclear: say we really built out our nuclear capacity globally to the point most energy was generated by it. when a new sustainable source is discovered an implemented and we were to shut down all of these reactors...is there any environmental concern there? or human lives? i know we've shut down reactors and i don't know and any issues caused later but just curios if there would be any concerns beyond the obvious human error upfront. but longterm would having that amount of radioactive material buried around the world be cause for concern assuming no human error? though given enough chances that undoubtedly will occur.
separately, a thought i've had since probably grammar school i still find the mental image of hilarious - when it comes to the issue of mass accumulations of garbage around the world - can we not just occasionally fire it into space. the thought of marvin in some galaxy many lightyears away cruisin around in his new ship and taking a flying schoolbus to the windshield makes me laugh every time. i imagine this is on par with trump suggesting nuking a hurricane but maybe science needed an outside the box thinker to come up with where to put all our sht