I'm too lazy to go to my bookcase and dig out my 30 yr old copy of Swan Song" but the beginning of that book describes the nuclear war scenario, was current in the 70s. There's a word (Waterfall? Lightening? Some disastrous weather word) that kinda sums it all up...
Found it! Looking Glass. Don't know if it's Project Looking glass, but you can just GTS (Google That S***)
👍ThankQ