Fig. 3: Glacial and interglacial climate sensitivities. | Nature Communications

Fig. 3: Glacial and interglacial climate sensitivities.

From: No apparent state-dependency of equilibrium climate sensitivity between the Pleistocene glacial and interglacial climate states

Fig. 3: Glacial and interglacial climate sensitivities.

a–c ΔGMST48 plotted against changes in different radiative forcings, including CO2 forcing alone (ΔFCO2), combined CO2 and ice-sheet forcings before (ΔFCO2,LI) and after (ΔFCO2,LI-cal) applying the efficacy factor ε. The linear regression slopes represent climate sensitivities. Glacial (blue) and interglacial (orange) records were analyzed separately. The data points and error bars represent the means and standard deviations of all the data within each 300-ky time window. Dashed lines and shades denote linear regression lines and 95% confidence intervals. d–f Probability density distributions of climate sensitivities based on Monte Carlo random sampling (Materials and Methods). d, e correspond to (a, b), whereas f shows Stotal accounting for all slow feedbacks, which approximates ECS. Solid and dashed lines denote the medians and 95% confidence intervals. Cohen’s d and p values are used to evaluate the difference between glacial and interglacial sensitivities, with d > 0.3 and p < 0.001 indicating a significant difference.

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