Fig. 5: Comparison of reconstructed CO2 concentrations with other paleoenvironmental records. | Communications Earth & Environment

Fig. 5: Comparison of reconstructed CO2 concentrations with other paleoenvironmental records.

From: Tibetan lakes have been persistent CO2 sources since the Last Glacial Maximum

Fig. 5: Comparison of reconstructed CO2 concentrations with other paleoenvironmental records.The alternative text for this image may have been generated using AI.

a Reconstructed lake water CO2 concentrations from this study; b Atmospheric CO2 concentration from ice cores8; c δ13C values of atmospheric CO2 from ice cores8; d pH variations in Lake Nam Co65; e HCO3- concentrations in Lake Koucha19, with higher values indicating lower pH; f Effective moisture reconstruction for Central Asia70; g Annual mean precipitation reconstruction based on pollen data from the northeastern Tibetan Plateau71. The grey bar highlights the enhanced CO2 emissions during the last deglaciation and early Holocene.

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