Fig. 3: Comparison of abrupt CO2 changes.
From: Multiple carbon cycle mechanisms associated with the glaciation of Marine Isotope Stage 4
The negative isotopic excursion associated with the CO2 increase at Dansgaard–Oeschger (DO)-19 (red circles, this study) did not occur at other Northern Hemisphere warming events with similar fast CO2 increases, e.g. DO-8 or the Oldest Dryas (OD)–Bølling–Allerød (BA) transition (blue circles)4,26. Water stable isotope data are from North Greenland Ice Core Project (NGRIP)48.
