What is the Atlantic Meridional Overturning Circulation, and why are scientists worried about it slowing down?

The Atlantic Meridional Overturning Circulation (AMOC) helps nourish aquatic ecosystems and is part of the reason Europe has milder temperatures than places in Canada at the same latitude. But lately scientists are concerned that it is slowing down and could even potentially collapse.

from CBC | Technology News https://ift.tt/PKA932r