Cascading Climate Collapse

Rather than a sudden, singular apocalyptic event, the most probable end of modern civilization stems from the compounding feedback loops of environmental degradation and systemic fragility. As global temperatures breach critical thresholds, the resulting extreme weather, biodiversity loss, and agricultural failures will trigger unprecedented mass migrations and severe resource scarcity.

This environmental stress acts as an ultimate threat multiplier, overwhelming global supply chains and destabilizing geopolitical alliances. As nations compete for dwindling arable land, habitable zones, and fresh water, the likelihood of regional conflicts escalating into broader resource wars increases significantly. Ultimately, the inability of fragmented, economically strained societies to coordinate a unified global response will lead to an irreversible breakdown of international infrastructure, food production, and governance, culminating in the collapse of human civilization.