Karmageddon is 40ish short stories of a nuclear apocalypse caused indirectly by the United Nations legallizing marijuana worldwide and the death of a charismatic cult leader in the Canadian Rockies, as told in the prequel Enter A Fistful of Marijuana.
i've read this goddamn book 9 times now so I think it's pretty darn good and there may be one or two typos but put it up to 'author's choice' and leave it at that. It holds a mirror up to society and reinvents the wheel of Apocalyptic fiction.