I'm normally not too good at participating in these kinds of events, but I do love a good apocalypse. Any suggestions for fandom/apocalypse combos?

Meteor strike/impact from space	Mass Infertility/underpopulation	Time goes backwards/Big Crunch
Clones	WILD CARD	Pollution/poisoning
Buried by garbage	Underground forces unleashed	Horsemen of the Apocalypse