Sustaining civilisation - 6

D 6 --- | --- D 8

Nuclear annihilation

The possibility (indeed probability) of nuclear destruction loomed large from the 1950s to the 1980s. At that time, an East-west confrontation seemed the most likely route to M.A.D.

The Redwing test Seminole

The Wilson effect - Seminole

Fallout - Seminole

Nowadays, there are other options:
`rogue powers', terrorist groups, or plain accidents

The Chernobyl nuclear power plant

D 6 --- | --- D 8