WORLD'S END, OR NOT?

Clever computers link up and develop an evil intelligence. A man-made superbug escapes form a lab with no known anti-dote. Global warming accelerates past tipping point. Wars caused by overpopuliation. A huge asteroid hits earth and wipes us out like the dinosaurs. Cyber attacks bring all computers down, leading to society's breakdown. Food supply sabotage sparks riots. Killer virus mutated from animals spreading. Nuclear annihilation following a war from a rogue nation/state/terrorists. So just cosy up to your nearest and dearest and wait.