Climate change contributed to the decline of the Atlantic meridional overturning circulation (AMOC), according to this 2018 study. The AMOC is critical to the Earth’s climate system, the study said.
The slowdown of this circulation is associated with the Southern Ocean and the Antarctica warmth, according to 2018 study.
“Continued global warming is likely to further weaken the AMOC in the long term, via changes to the hydrological cycle, sea-ice loss and accelerated melting of the Greenland Ice Sheet, causing further freshening of the northern Atlantic,” the researchers said.
The AMOC weakened approximately 15 percent since the mid-twentieth century, according to the report. This was a record low, researchers said.
The AMOC had a temperature decrease in the North Atlantic space and a temperature increase in the Gulf Stream, according to the above 2018 study on the AMOC.
The AMOC is a northward flow of warm, salty water in the upper layers of the Atlantic and a flow of cold water southward in the deep Atlantic, according to this report.
“Ocean currents move substantial amounts of heat, most prominently from lower latitudes, where heat is absorbed by the upper ocean, to higher latitudes, where heat is released to the atmosphere,” the aforementioned report said.