Fig. 3: Comparison of CB2 δ18O to various potential forcings.

a Autumn (SON, r = −0.48, p < 0.14, orange) and Summer (JJA, r = −0.26 p = 0.46 black) insolation. b Atmospheric pCO2 (r = −0.61, p < 0.01, maroon109). c SSTs from Gulf of Mexico (r = −0.52, p < 0.03, silver59), Caribbean (r = −0.59, p < 0.05, lime green58), Tropical N. Pacific (r = −0.55, p < 0.03, magenta56) and Tropical N. Atlantic (r = −0.73, p < 0.01, teal57). d Greenland temperatures (r = −0.61, p < 0.01, indigo110).