In the North Atlantic Ocean, south of Greenland and Iceland, a swath of water is doing something very strange. While the rest of the ocean heats up; it’s been getting colder. A team of scientists say they have the answer to this mystery
The Atlantic meridional overturning circulation (AMOC) is the main ocean current system in the Atlantic Ocean.[1]: 2238 It is a component of Earth’s ocean circulation system and plays an important role in the climate system.
I didn’t know, maybe this helps others:
https://en.wikipedia.org/wiki/Atlantic_Meridional_Overturning_Circulation