New modeling suggests meltwater from the Greenland ice sheet has a big weakening influence on the Atlantic Meridional Overturning Circulation, but the runoff likely won't cause a complete and irreversible collapse.
Source: [Live Science](https://www.livescience.com/planet-earth/rivers-oceans/greenland-meltwater-will-drive-a-strong-weakening-but-not-a-shutdown-of-key-atlantic-currents-study-finds)