Climate Collapse

The most probable global catastrophe stems from cascading failures triggered by accelerated climate change. While isolated wars, pandemics, or economic crises are likely, they would likely remain regional or manageable. The climate crisis, however, presents a systemic, interconnected threat. Exceeding key planetary boundaries (like ice sheet collapse or Amazon dieback) could trigger irreversible tipping points.

These environmental thresholds would exacerbate food and water scarcity, mass migration, and resource conflicts on an unprecedented scale, overwhelming political and social systems. The resulting breakdown of international cooperation, critical infrastructure, and global supply chains would create a self-reinforcing cycle of destabilization. This scenario doesn't require a single dramatic event but a compounding series of climate-driven failures that erode the foundations of complex human civilization.