Study Warns of Potential CO2 Release from Ocean Current Collapse
A recent study has highlighted the potential consequences of a collapse in the Atlantic Meridional Overturning Circulation (AMOC), a crucial ocean current system. The AMOC, which includes the Gulf Stream, plays a significant role in regulating climate by transporting warm water from the Gulf of Mexico to the northern Atlantic. The study, led by Da Nian at the Potsdam Institute for Climate Impact Research, suggests that if the AMOC were to shut down, it could release up to 640 billion tonnes of carbon dioxide from the deep Southern Ocean into the atmosphere. This release would further increase global temperatures by an additional 0.2°C. The research indicates that fresh meltwater from the Greenland ice sheet is diluting the AMOC, slowing its process, and potentially leading to its collapse. The study's models show that once CO2 concentrations reach 350 parts per million or higher, the AMOC may not recover, posing irreversible climate impacts.