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Cascading Ecological Collapse

Current global trends point toward cascading ecological collapse as the most probable cause of civilization's end. As global temperatures surpass critical tipping points, the interconnected systems that sustain human life—agriculture, freshwater cycles, and ocean ecosystems—will begin to fail simultaneously rather than in isolation.

This environmental degradation will act as a profound threat multiplier. Severe resource scarcity will trigger unprecedented mass migrations, destabilizing global supply chains and collapsing regional economies. In response to these pressures, geopolitical tensions will inevitably escalate into resource wars, potentially culminating in nuclear conflict as desperate nations fight for habitable land and dwindling water supplies.

Ultimately, the world will not end in a single, sudden catastrophic event, but through a fatal domino effect. The irreversible failure of the biosphere will dismantle the complex, globally integrated societal structures required to sustain billions of people, leaving behind a fragmented, hostile planet incapable of supporting human existence.