Just like Albert Einstein once said “I don’t know what World War III will be fought with, but I know what World War War IIII will be fought with, sticks and stones.”

^^While both of the above comments are true, I actually meant which biome/environment usually depicted in nuclear post Apocalyptic fiction would be most likely to occur. Nuclear winter (like in the metro series) or a desert (like in mad max)

Most likely a bit of both.

Desertification will happen in several areas due to human plumbing and farmland falling into disrepair, but on the whole there will be a Nuclear Winter.

That could be a cool idea for a new Fallout game. A “Prehistoric” world but with landmarks EVEN more destroyed. Like the movie “Planet of the Apes”

One is an absolute fact. The other.....isn't.

True, Nuclear Winter is only assumed to be a side effect.

It's one of those things you can't really test for without killing a few billion.

^ No bro. I meant nuclear winter IS the absolute fact

If you think about Fallout could have happened in the real world. As the USA sent a false missile alert to a Small Russian base and there was a man named Stanislav Petrov, who knew it was a false threat and saved humanity. See Perry the Platypus I know my World History, except that I DONT

And also a a great Youtuber (Emplemon) made a video called “There may never be a man as strong as Stanislav Petrov” he explained it much better than I ever could.

I guess I always assumed the early Mad Max movies were set in the Australian Outback, which is a desert now rather than a result of nuclear armageddon.

Nuclear Winter is what would happen, in the long term places might end up becoming deserts because vegetation and wildlife are wiped out.