Is the Atlantic heat conveyor slowing?

Rest of the world is warming. This patch is different.

Proxy fingerprint · not direct flow

Overturning at 26°N (RAPID)
Trend since 2004
Sv per decade (RAPID annual means)
North Atlantic cooling pattern
Subpolar overturning (OSNAP)

RAPID transport through time

    Also in the literature

      How weak could AMOC get this century?

      Schematic strength of Atlantic overturning as a share of today’s flow — not a live forecast dial.

      What AMOC weakening means

      Estimating your region…

      What drives this

      • Ocean heat →Warming changes density contrasts and the heat carried north.
      • Polar ice →Freshwater from ice melt can cap dense-water formation in the North Atlantic.

      What this drives

      How we know this

      • Sources: RAPID/BODC annual transport (reference embed), NOAA PSL AMV index (daily fetch), OSNAP published mean, OpenAlex paper metadata.
      • Update cadence: AMV and papers refresh on our build schedule; RAPID/OSNAP update when we paste new BODC/OSNAP releases (often years behind calendar date).
      • Time coverage: Direct overturning at 26°N since 2004 only; SST fingerprint from 1856 via AMV; landmark papers annotated on the chart.
      • Methods: Hero % uses 2004–2008 RAPID mean as baseline; cold-blob grid is a schematic AMV-derived pattern, not OISST pixels.
      • Uncertainty: Twenty years of RAPID cannot prove collapse; IPCC treats shutdown this century as unlikely but not impossible at high emissions. Papers disagree on tipping risk.
      • Limitations: AMOC ≠ Gulf Stream; “near you” uses coarse IP geolocation (ipapi.co). Pre-2004 trends need paleo proxies with wider error bars.
      • Primary data: RAPID · NOAA AMV · IPCC AR6 Ch.9 · How this page is built