A recent study highlights a significant weakening of the Atlantic Meridional Overturning Circulation (AMOC), a crucial system of ocean currents that regulates global climate. Over the past two decades, the AMOC has weakened by 10%, primarily due to changes in ocean density caused by global warming. As warm surface water from the tropics moves towards the North Atlantic, it cools and sinks, driving the current. However, increased freshwater input from melting ice reduces ocean density, hindering the sinking process and slowing the AMOC. The study projects that if this trend continues, the AMOC could weaken by 50% by the end of the century, potentially collapsing within 140 years.