Human induced climate catastrophe
35% (78 votes)
Natural climate catastrophe
10% (23 votes)
Global nuclear war
16% (36 votes)
Terrorism
3% (6 votes)
Asteroid or comet impact
17% (39 votes)
Superbug pandemic
16% (36 votes)
Nanotechnology grey goo
4% (8 votes)
Total votes: 226
