Climate Collapse

The most probable way the world could end is through climate-driven civilizational collapse. Unlike sudden catastrophes, climate change is already underway, cumulative, and global. Continued emissions, deforestation, and industrial activity are pushing Earth toward tipping points such as ice-sheet destabilization, permafrost methane release, ocean circulation disruption, and Amazon dieback.

These environmental changes would not merely cause hotter weather. They would strain food production, freshwater supplies, coastal infrastructure, energy systems, and public health. Repeated extreme heat, droughts, floods, storms, and crop failures could trigger mass migration, economic shocks, political instability, and conflict.

Geopolitics and technology may worsen the risk rather than solve it quickly. International cooperation is fragmented, short-term economic incentives favor fossil fuel use, and emerging technologies can amplify misinformation, inequality, or strategic competition. As resources become scarcer, societies may become more authoritarian, militarized, or unstable.

This scenario is most likely because it is slow-moving, already locked in to some degree, and interacts with nearly every other global risk. It may not destroy the planet physically, but it could end the modern global order and cause irreversible civilizational breakdown.