Disasters

About as bad as things can get.

Real

Industrial disasters	A list of industrial disasters.
Chernobyl Disaster	Nuclear reactor in Ukraine 'explodes', and irradiates a large area of land including an entire city.

Cybernetic Revolt	Destruction of the human race by malovelent AIs.
Doomsday Event	Basically, the end of humanity. Encompasses a large number of ideas but clearly none of them have happened.

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