Earth is now closer than ever to potential catastrophe, as the Bulletin of the Atomic Scientists moved its symbolic Doomsday Clock to 85 seconds to midnight, citing escalating global risks from nuclear weapons, climate change, and unregulated artificial intelligence.
The group, composed of scientists and security experts, said international tensions are intensifying as countries including Russia, China, and the United States adopt increasingly aggressive, adversarial, and nationalistic policies. “Hard-won global understandings are collapsing, accelerating a winner-takes-all great power competition and undermining the international cooperation needed to reduce existential risks,” the organization stated.
Nuclear Risks Heightened
The scientists highlighted the danger of conflicts involving nuclear-armed nations, including the ongoing war in Ukraine, the May 2025 confrontation between India and Pakistan, and concerns over Iran’s nuclear ambitions following U.S. and Israeli strikes last summer. Daniel Holz, chair of the group’s science and security board, emphasized that global trust and cooperation are essential: “If the world splinters into an us-versus-them, zero-sum approach, it increases the likelihood that we all lose.”
Climate Change and Environmental Threats
Alongside geopolitical dangers, the bulletin cited worsening climate crises, including droughts, heat waves, and floods. The group criticized insufficient global action to curb emissions and transition to renewable energy, pointing to policy setbacks in major countries.
Artificial Intelligence and Biotechnology
Rapid advancements in artificial intelligence and biotechnology were also highlighted as emerging threats, particularly where safeguards and international regulations lag behind technological development.
A Symbolic Warning
The Doomsday Clock, first introduced in 1947, uses a visual metaphor to signal humanity’s proximity to self-inflicted destruction. At the end of the Cold War, it was set at 17 minutes to midnight. In recent years, as global threats have accelerated, the clock’s scale shifted from minutes to seconds, reflecting the urgency of current challenges.
The bulletin stressed that the clock is reversible. Concerted international cooperation, nuclear risk reduction, climate action, and responsible technology governance could move the hands backward, reducing the immediate risk to humanity.
The announcement serves as a stark reminder that unchecked geopolitical rivalry, climate inaction, and technological risks could have far-reaching consequences for the planet.
