Fig. 4.

The DD record as compared with atmospheric CO₂ [from the Byrd (25) and Taylor Dome (24) ice cores], deep Atlantic benthic foraminiferal δ¹⁸O (plus 3-point running mean) (5) and Antarctic temperature (7). All records are on the GISP2 time scale. The two records of CO₂ have been detrended by subtraction of a linear decrease of 0.3 ppmv/kyr centered on 45 kyr ago. Shaded gray areas loosely define warming periods in Antarctica. The DD, CO₂, and benthic δ¹⁸O records all display apparent time delays behind the Antarctic record. See also SI Text and SI Fig. 8.