Major Global Threats to Humanity This Century
An international panel of experts has identified 17 critical threats confronting humanity throughout the 21st century. Among these, unchecked artificial intelligence development and nuclear warfare stand out as the most dangerous risks, with the potential to wipe out civilization by the year 2100. The COVID-19 pandemic exposed the world’s lack of preparedness for large-scale crises. In a study published by The Lancet, researchers estimated the burden of disease and injury in terms of Disability-Adjusted Life Years (DALYs) from 2025 to 2100. The total projected impact is 246 billion DALYs globally, equivalent to roughly 500 COVID-19 pandemics combined.
Risk Scenarios and Catastrophic Dangers
The report highlights two scenarios with the highest probability of causing the extinction of human civilization before 2100: misuse of artificial intelligence and widespread nuclear conflict. Other catastrophic events like asteroid impacts or supervolcanic eruptions were ruled out due to their low likelihood or insufficient data. Additionally, experts outlined 15 major catastrophic risks, each capable of causing over 1 billion DALYs in damage. These include:
- environmental pollution
- antibiotic resistance
- child malnutrition
- climate change
- reduced healthcare funding
- conventional warfare
- alcohol abuse
- hypertension
- income inequality
- low educational attainment
- natural pandemics
- obesity
- mental health disorders
- smoking
- environmental degradation
Obesity and its related conditions alone are projected to cost humanity 23.1 billion DALYs, comparable to about 46 pandemics on the scale of COVID-19. Christopher J. L. Murray, a physician and economist from the University of Washington and co-chair of the Lancet commission on global threats, emphasized:
“What is striking is not just the scale of these challenges but also humanity’s genuine opportunity to influence the outcome.” - Christopher J. L. Murray
The experts urge governments worldwide to prioritize funding for resilient healthcare infrastructures, invest in breakthrough technologies and climate solutions, and establish continuous monitoring systems for global risks.
This study underscores the importance of a comprehensive, coordinated response to the complex threats facing humanity. As climate change accelerates and technological innovations evolve—bringing both promise and peril—international cooperation and substantial health investments are vital to averting potential disasters. Proactive policies and global partnerships in the coming decades could dramatically alter our trajectory and improve chances for a sustainable future.
As humanity grapples with these pressing challenges, the impending Super El Niño phenomenon poses an additional threat, particularly to vulnerable populations in the Global South. Understanding these interconnected risks is crucial for developing comprehensive strategies to safeguard our future.