Atlantic Ocean Current Collapse Threatens Global Food Security

Beneath the surface of the Atlantic, a circulation system older than human civilization is faltering — and with it, the invisible architecture that has long shaped where food grows, where fish gather, and how temperate the winters of entire continents remain. The Atlantic Meridional Overturning Circulation, weakened by a warming climate and the freshwater released from melting ice, has declined roughly fifteen percent over the past century, with the pace of that decline now accelerating. Scientists cannot yet name the precise threshold beyond which the system may collapse suddenly and irrevers