Climate change: AMOC likely to withstand future warming
The Atlantic Meridional Overturning Circulation (AMOC) – a major transporter of heat to the north Atlantic and northwestern Europe – is unlikely to collapse this century.
www.metoffice.gov.ukHere’s the latest on AMOC (Atlantic Meridional Overturning Circulation) collapse discussions.
-
Most recent mainstream assessments still indicate uncertainty about an imminent collapse, with several studies suggesting the AMOC is unlikely to slam shut within this century, though it may weaken significantly under continued warming. This means large regional climate impacts could occur even without a full collapse.[4][6]
-
However, there are rising alarms from some researchers and open-letter campaigns noting that the risk could be higher than earlier IPCC estimates, and that tipping points might occur sooner under high-emission scenarios or rapid ice-melt contributions from Greenland. These voices emphasize the urgent need for aggressive emission reductions to limit potential abrupt changes.[2][5]
-
Public and media coverage varies in tone, with some outlets framing AMOC changes as potential “collapses” in the long term or under certain model assumptions, and others stressing cautious interpretation due to limited direct observations and model uncertainties. It’s important to distinguish between a gradual slowdown, a shift in circulation patterns, and an outright collapse.[1][3][6]
-
For a regional snapshot: a substantial slowdown could alter tropical rainfall patterns, influence European climate, and affect sea level patterns, even without a complete shutdown of the current. Ongoing ocean monitoring programs (like ICOS) continue tracking AMOC strength to detect any rapid changes early.[5][1][4]
-
If you want, I can pull the most recent primary sources (IPCC updates, key open-letter statements, and recent model studies) and summarize their main projections, confidence levels, and regional implications with direct citations.
Would you like a brief sourced briefing with a side-by-side, high-level risk assessment (low/medium/high) for different emission scenarios and plausible timelines?