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Top three
potential
apocalyptic
threats to
humanity,
ranked by a
combination of
likelihood that
they could
occur, and
consequences
if they do.
They're
preventable.
For possible
solutions, click
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see the entire
list and how
we ranked
them, click
details.
Threat Ranked by
Risk
Probability
over
next 100 years
next 100 years
Worst Case
Consequences
1
Comet/
Asteroi
d
Impact
2
Artificial
Intelligen
ce
3
Global
Nuclear
War
.00003%
33%
50%
Ranking the
Threats