- Radioactive rain, blown in from Japan
- "Yellow Dust" blown in from China (also radioactive)
-Fan Death (self-inflicted)
Radioactive rain because of Japan will probably not happen.
Yellow Dust is a phenomenon that happens every year from right about now until the end of summer. Poisonous clouds chock full of silicon, sulphur, and carbon - mawhatsit are whipped around and settle over Korea, China, and Japan.
This year, they found out that some of the dust has radioactive particles they believe came from Chinese power plants.
Fan death is a hilarious superstition which dictates that you never leave your fan on and have the windows shut when you go to sleep, or you will die.