The Gulf Stream could collapse as early as 2060. A new study from Utrecht University reveals that the Atlantic Meridional Overturning Circulation (AMOC)—the engine behind the Gulf Stream—is weakening far more rapidly than earlier projections suggested. This vast ocean conveyor carries warm tropical water northward to Europe and sends cold water back south, moderating Northern Europe’s climate, sustaining global rainfall patterns, and stabilizing weather systems worldwide. If the AMOC collapses, that equilibrium would shatter. Researchers calculated that even under a moderate emissions pathway—limiting warming to 1.5 °C (2.7 °F) above current levels—there is a 37 % chance of AMOC failure by 2100. In high-emissions scenarios, the risk climbs to 70 %. Even the most optimistic models give a 25 % probability of collapse. A shutdown would bring severe winters to Europe, widespread droughts, and devastating agricultural losses. Global precipitation belts would shift, and sea levels along the U.S. East Coast could surge by up to a meter or more. In essence, the AMOC is a planetary tipping point—and we are nearer to triggering it than previously estimated. European climate officials now label the threat a “national security priority,” yet coordinated global action remains inadequate. The last major AMOC slowdown, 12,000 years ago, sparked abrupt regional climate swings. This time, with human societies far more interconnected, adaptation may not keep pace. How do we confront a danger that builds over decades yet could irreversibly transform the world?