The slowing of the Atlantic meridional overturning circulation is a response to climate change
Is it true that the slowing of the Atlantic meridional overturning circulation is a response to climate change?
Yes. The overwhelming consensus of climate models and paleoclimate research indicates that the slowing of the Atlantic Meridional Overturning Circulation (AMOC) is driven by anthropogenic climate change, particularly through increased greenhouse gases and freshwater from melting ice sheets, despite ongoing debate regarding the exact timing and observational detectability of the slowdown.
Verdict: SUPPORTED · 6 sources for, 1 against · Last checked
The vast majority of the provided literature (e.g., papers 0, 1, 4, 5, 8, 11) supports the premise that AMOC is sensitive to and weakens in response to anthropogenic climate change drivers such as rising CO2 and ice sheet melt. Conversely, paper [6] questions whether a measurable decline has occurred in specific recent decades based on heat flux proxies, representing a minority counter-perspective on historical detectability rather than refuting the broader physical mechanism. Thus, the evidence strongly supports the claim.
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Zhang, R., Kang, S. M., & Held, I. M. (2010). Sensitivity of Climate Change Induced by the Weakening of the Atlantic Meridional Overturning Circulation to Cloud Feedback. doi.org. https://doi.org/10.1175/2009jcli3118.1
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J, T., L, V., & NP, F. (2025). Atlantic overturning inferred from air-sea heat fluxes indicates no decline since the 1960s.. doi.org. https://doi.org/10.1038/s41467-024-55297-5
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Ivanović, R., Gregoire, L., Burke, A., Wickert, A., Valdes, P. J., Ng, H. C., Robinson, L. F., McManus, J. F., Mitrovica, J., Lee, L. A., & Dentith, J. (2018). Acceleration of Northern Ice Sheet Melt Induces AMOC Slowdown and Northern Cooling in Simulations of the Early Last Deglaciation. doi.org. https://doi.org/10.1029/2017PA003308
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Gérard, J. & Crucifix, M. (2024). Diagnosing the causes of AMOC slowdown in a coupled model: a cautionary tale. doi.org. https://doi.org/10.5194/esd-15-293-2024
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Cini, M., Zappa, G., Ragone, F., & Corti, S. (2025). Noise-shaped hysteresis cycles of the AMOC under increasing CO2 forcing.. doi.org. https://doi.org/10.1063/5.0241503
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C, H. (2025). The effect of CO<sub>2</sub> ramping rate on the transient weakening of the Atlantic Meridional Overturning Circulation.. doi.org. https://doi.org/10.1073/pnas.2411357121
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RM, v. W. & HA, D. (2026). Abrupt Gulf Stream path changes are a precursor to a collapse of the Atlantic Meridional Overturning Circulation.. doi.org. https://doi.org/10.1038/s43247-026-03309-1
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