Global disaster warning. Credit: muratart, Shutterstock
The Doomsday Clock – a symbolic measure of existential risk maintained by the Bulletin of the Atomic Scientists – has been set at 85 seconds to midnight, the closest it has ever been to symbolic global catastrophe.
The Bulletin’s review, published on January 27, 2026, explains that escalating threats from nuclear weapons, climate change, geopolitical tensions and other risks have placed humanity nearer to catastrophe than at any previous point since the Doomsday Clock’s creation in 1947.
What is the Doomsday Clock?
The Doomsday Clock is a symbolic clock face devised by scientists to represent how close humanity is to destroying civilisation through man-made threats such as nuclear war and environmental collapse. It is not a literal countdown, but a metaphor intended to motivate global action.
The clock originally focused on nuclear danger. Over time, its threat assessment has expanded to include climate change and technological hazards.
Why the Doomsday Clock has moved to 85 seconds to midnight
According to the Bulletin, just a year ago, ‘the world was perilously close to global disaster – and any delay in reversing course increased the probability of catastrophe.’
Instead of stepping back from the brink, the scientists argue that the world’s most powerful nations have moved in the opposite direction. ‘Rather than heed this warning, major countries have become increasingly aggressive, adversarial, and nationalistic,’ undermining the international cooperation needed to reduce existential risks.
Nuclear danger remains a central concern. Over the past year, conflicts involving nuclear-armed states have intensified, including the war in Ukraine, renewed fighting between India and Pakistan, and strikes involving Israel, the United States, and Iran. At the same time, a new arms race is emerging, with major powers expanding nuclear arsenals, modernising delivery systems and developing missile defence and space-based weapons.
Climate change is described as another rapidly worsening threat. Atmospheric carbon dioxide levels reached new highs, global temperatures remained at record levels, and sea levels continued to rise.
‘For the third time in four years, Europe experienced more than 60,000 heat-related deaths,’ the statement notes, alongside widespread flooding, drought and displacement in multiple regions of the world.
It also also highlights growing biological and technological dangers. Scientists warn that laboratory-created “mirror life” could pose an existential risk if allowed to develop unchecked, while artificial intelligence is increasingly being incorporated into military and security systems.
‘…artificial intelligence has the potential to accelerate chaos and dysfunction in the world’s information ecosystem,” worsening disinformation and weakening the public debate needed to address major global threats.
Underlying all of these risks, the scientists point to a broader failure of leadership. The rise of nationalist and autocratic politics, they argue, promotes zero-sum competition over cooperation and acts as a “threat accelerant” across nuclear, climate and technological domains. The message is stark but not hopeless. The Bulletin stresses that catastrophe is not inevitable, but only if leaders act decisively.
The statement concludes, ‘National leaders must find a path away from the brink.’
How the current Doomsday Clock setting compares historically
The clock’s time has fluctuated since its inception based on global events. According to the Bulletin timeline:
- 1947: Clock debuted shortly after WWII
- 2020: 100 seconds to midnight (close due to nuclear and climate threats)
- 2025: 89 seconds to midnight
- 2026: 85 seconds to midnight
What this means for the world
The Bulletin frames the clock as a call to action: the closer the Doomsday Clock is to midnight, the greater the urgency for world leaders and citizens to reduce existential risks.
Nuclear competition among major powers, climate change impacts, and the governance of emerging technologies are all cited as areas requiring immediate attention.
Although symbolic, the Doomsday Clock’s warning underscores real-world policy and security trends that affect everyday life. Understanding these global risk signals can help citizens make informed decisions on long-term planning.
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