Climate-Induced Societal Collapse

The single most probable path to global catastrophe is climate-induced systemic collapse. Current trajectories show the world on track for ~3°C warming by 2100—far beyond the 1.5°C threshold—but the critical danger lies in cascading tipping points (permafrost thaw, Amazon dieback, ocean circulation disruption) that could unfold within decades. These would trigger irreversible food system failures through crop yield collapses in breadbasket regions, extreme weather events disabling critical infrastructure, and mass displacement overwhelming governance systems. The geopolitical strains of resource scarcity would likely spark nuclear-armed states' conflicts over arable land and water, while weakened states become unable to manage pandemics or maintain nuclear security. Unlike sudden events (asteroids, nuclear war), climate collapse operates through slow feedback loops that societies cannot adapt to quickly enough once thresholds are crossed. The IPCC's 2023 synthesis indicates we're currently accelerating toward these tipping points rather than avoiding them.