Fig. 1.

(A) Location of core sites with records discussed in text (red dots). Also shown is extent of ice shelf derived from the Hudson Strait Ice Stream as reconstructed in ref. 31. (B) Zonal mean temperature anomaly in the Atlantic basin for a strongly reduced (approximately 4 Sv) versus active (approximately 13 Sv) AMOC (12). Location of core sites also shown: site a is core M35003-4, site b is core OCE326-GGC5, site c is core EW9302-2JPC, site d is core ENAM93-21, and site e is core MD95-2010.