Articles | Volume 16, issue 6
https://doi.org/10.5194/cp-16-2203-2020
https://doi.org/10.5194/cp-16-2203-2020
Research article
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14 Nov 2020
Research article | Highlight paper |  | 14 Nov 2020

Millennial-scale atmospheric CO2 variations during the Marine Isotope Stage 6 period (190–135 ka)

Jinhwa Shin, Christoph Nehrbass-Ahles, Roberto Grilli, Jai Chowdhry Beeman, Frédéric Parrenin, Grégory Teste, Amaelle Landais, Loïc Schmidely, Lucas Silva, Jochen Schmitt, Bernhard Bereiter, Thomas F. Stocker, Hubertus Fischer, and Jérôme Chappellaz

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Short summary
We reconstruct atmospheric CO2 from the EPICA Dome C ice core during Marine Isotope Stage 6 (185–135 ka) to understand carbon mechanisms under the different boundary conditions of the climate system. The amplitude of CO2 is highly determined by the Northern Hemisphere stadial duration. Carbon dioxide maxima show different lags with respect to the corresponding abrupt CH4 jumps, the latter reflecting rapid warming in the Northern Hemisphere.
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