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Uncertainty ranges on the geologic forcing factors degassing and uplift and their effects on model predictions. (A) Degassing. (B) Uplift. (C) Total organic carbon burial. (D) Carbonate carbon isotope record (δ13C). (E) Atmospheric O2. (F) Atmospheric CO2. Original model forcing scenario (black dashed line) compared with Royer central estimates (blue), and extreme combinations of weak degassing and strong uplift (green) and strong degassing and weak uplift (red).
