Excess freshwater from melting ice in Greenland makes North Atlantic water less dense, reducing the AMOC's southward flow and slowing the circulation.
Notes on verification
Mechanism corroborated by multiple independent, credible sources including Britannica, UNSW research summary, and phys.org coverage of a peer-reviewed study, all consistent with mainstream oceanographic science on AMOC dynamics. [cascade flags: aggregator_dropped_primary_exists | tier=unverified indep_score=0.375 clusters=1 claim_tier=notable] [kind-backfill 2026-09-16: kind=empirical eligibility=medium] [harvest 2026-09-27: +3 source(s) on new hosts; tier unverified->silver indep=0.917 clusters=3]
Sources
- Scientists Shed Light on the Mysterious 'Cold Blob' in ... (seed:science_and_space)
- https://www.whoi.edu/ocean-learning-hub/ocean-topics/how-the-ocean-works/ocean-circulation/amoc/ (corroboration)
- https://www.unsw.edu.au/newsroom/news/2024/11/meltwater-greenland-arctic-weakening-ocean-circulation (corroboration)
- https://www.britannica.com/science/Atlantic-Meridional-Overturning-Circulation (corroboration)
- https://www.geomar.de/en/discover/ocean-and-climate/ocean-observation/gulf-stream-and-atlantic-circulation (corroboration)