Nuclear weapons and escalation risk
About 12,187 nuclear warheads existed in January 2026, with roughly 2,100 kept on high alert. Arsenals are being modernised as arms control erodes.
How this affects people
Nuclear war would cause catastrophic immediate deaths and potentially global famine from climate effects.
The total number of warheads is falling only because old ones are dismantled; usable stockpiles are being expanded and modernised.
Look at what keeps the problem going
- 01Great-power rivalry
- 02Erosion of arms-control treaties
- 03New delivery technologies
- 04Risk of accidents or miscalculation
What could happen next
The future leaves room for choices. Compare the outlooks, check what supports them and notice where the evidence becomes less certain
Modernisation continues
Nuclear states keep upgrading arsenals.
The future is not a timetable. These summaries reflect published scenarios and trends, with deeper uncertainty at longer horizons. Choices made now matter.
Where could a useful response begin?
Begin with a question you can investigate. Compare the sources and follow related briefings to see how the problem connects to other lives and places. This prototype does not accept proposals yet.
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