- Pandemic - Giant volcano eruption. - Radiation Forrest Fire - Megadrought equal to the worst to have hit the western US in recorded history expected by scientists - Alien Invasion? - ... Seriously. Who did not share that chain letter on Facebook 10 years ago?
The pandemic has to have at the very least a 80 percent plus kill rate plus 100 percent communicability to cause an apocalypse. It would also have to survive being airborne as such a high kill rate all but eliminates the host as a vector, unless mother nature wants to be sneaky and throw in a long, asymptomatic incubation period. Gonna check out the wiki article about the new plague in Fallout lore.
HAHAHAHAHAHAHAHAHA!!!!! The New Plague, the Blue Flu, or Limit 115 is a socially transmitted plague which arose in the middle of the 21st century in the United States in the 2050s, eventually demanding a national quarantine in 2053. The epidemic became the driving force behind the Pan-Immunity Virion project that paved the way for the Forced Evolutionary Virus. The "New Plague" arose in 2053 after Chinese Hei Gui agents managed to steal some of the Limit-115 during a sabotage of the Hoover Dam testing labs. The spies were in the process of trying to escape Denver and were killed, breaking samples of the virus in a crowded public area. The epidemic killed approximately 200,000 citizens in the United States, including cities such as Denver, Boulder, and Colorado Springs. *** You can look up the rest.
I was hoping to learn about the bio weapons the Chinese were using on us which fast tracked Limit 115.