Seems to me that this would be a good candidate for a UN resolution, with penalties for non-compliant civs. Couldn't there be a "vote on the Kyoto Accord" option? And/or a "no building nuclear power plants"? (There are certainly real-world precedents, followed or not, for both.)
oh man i'd love that. dunno how it would work tho. if it passed would it just automatically grant every civ a coal resource, or count every city as on a river and able to make a hydro plant? i wish we could make 'em not build nuke plants! seriously, nuke plants bother me more than nukes.
i get
really worked up about AI nuke plants. one of hubby's first civ4 games, he captured a city of gandhi's. it had a nuke plant in it, which ghandi had made, and which stayed after he captured it. it had a meltdown while the city was still in revolt. hubby of course had to suffer the consequences, not gandhi. beautiful size 25 or whatever city down to, i dunno, way way less pop and terrible terrain in an instant. he hadn't saved the game in over an hour, and doesn't have autosave set for every turn like i do (well, *now* he does, he didn't then). the thought of going back an hour and moving all those troops around with that boring micromanagement he'd already done once, for something completely not his fault and he couldn't have planned for, he just quit in disgust.
this was one of his very first civ4 games, i think the first one that lasted into modern warfare. we thought the meltdown was related to the city being in revolt, and not just random chance, since i think in some previous version of civ they were more likely to occur when your citizens were unhappy and rebelling.
you can't sell off buildings in civ4, so he couldn't get rid of it once he took the city. i don't know whether 3 gorges takes away the meltdown chance like it takes away the health penalty for coal plants, but in this case he'd built 3GD on another continent so that wouldn't have helped. the city wasn't on a river for him to build a hydro plant there, even if he'd had time. you can't check cities to see what's in them before you decide to raze or capture them. you can look at the pictures and try to tell but they tend to get a little cramped by that time and we were brand new, we didn't know how to interpret all that stuff.
so, anyway, hubby got a little pissed at the concept of nuclear meltdowns and global warming. "a little" defined as he didn't play again for about 6 months, and to this day, if i play as gandhi he gives me dirty looks.
btw, IRL i'm an environmental engineer and in my previous job i cleaned up messes (including nuclear ones) the government made before i was born. well ok, i didn't clean the stuff myself (that would not be fun), but i managed the projects and wrote the docs etc. but that isn't why i get so mad at nuke plants in this game, i swear, it's because it was unfair to my hubby!