Malicious use of AI and nuclear war threaten the end of humanity by 2100, according to a new Lancet Commission assessment. The report identifies these as the top two existential risks among 17 major threats to human health over the next 75 years. The commission, comprising experts from around the world, warns that these threats interact and must be addressed together to ensure a livable future.
Understanding the Lancet Commission's Global Risk Assessment
The Lancet Commission on 21st Century Global Threats to Health modelled the impact of each threat using disability-adjusted life years (Dalys), a measure of years lost to sickness, disability, or early death. Based on current trajectories, they ranked threats by their potential to cause widespread harm. The top risks include malicious AI, nuclear conflict, climate crisis, and childhood malnutrition. The commission stresses that while the likelihood of extinction from AI or nuclear war remains low, the consequences would be catastrophic.
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Top Existential Threats: AI and Nuclear War
The report highlights that malicious use of AI, including the development of bioweapons, and nuclear conflict with subsequent nuclear famine, carry risks of extinction in the next 75 years. A nuclear war could inject enough particles into the upper atmosphere to block sunlight, causing global famine. Similarly, AI could be used to create bioweapons or launch cyberattacks that disrupt critical infrastructure. These threats are interconnected; for example, AI could be used to launch nuclear weapons, and nuclear conflict could disrupt AI systems.
Other Major Threats to Human Health
The commission identified 17 threats, including cuts to aid spending by wealthy countries, the climate crisis, and childhood malnutrition. These threats interact, meaning that addressing one can positively impact others. For instance, reducing climate change can improve food security and reduce malnutrition. The report emphasizes that there is a realistic route to act on each threat, but it requires coordinated global efforts.
Comparison of Top Threats by Potential Impact
| Threat | Potential Impact | Likelihood |
|---|---|---|
| Malicious AI | Extinction, mass casualties | Low but increasing |
| Nuclear War | Extinction, global famine | Low but increasing |
| Climate Crisis | Widespread health issues, displacement | High |
| Childhood Malnutrition | Long-term health and development issues | High |
Key Takeaways for Global Leaders and Policymakers
- Prioritize AI safety research to prevent malicious use.
- Strengthen nuclear non-proliferation treaties and reduce stockpiles.
- Increase funding for global health and climate adaptation.
- Foster international cooperation to address interconnected threats.
- Invest in early warning systems for both AI and nuclear risks.
FAQ
What is the Lancet Commission on 21st Century Global Threats to Health?
It is a group of experts convened by The Lancet to assess major threats to human health over the next 75 years and propose solutions.
How could AI lead to human extinction?
AI could be used to create bioweapons, launch cyberattacks, or control nuclear weapons, leading to catastrophic consequences.
What can be done to mitigate these threats?
The report suggests a realistic route to act, including international cooperation, AI safety research, nuclear disarmament, and increased funding for global health.
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