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Low CO2 levels of the entire Pleistocene epoch

Author

Listed:
  • Jiawei Da

    (Nanjing University)

  • Yi Ge Zhang

    (Texas A&M University)

  • Gen Li

    (California Institute of Technology)

  • Xianqiang Meng

    (Nanjing University)

  • Junfeng Ji

    (Nanjing University)

Abstract

Quantifying ancient atmospheric pCO2 provides valuable insights into the interplay between greenhouse gases and global climate. Beyond the 800-ky history uncovered by ice cores, discrepancies in both the trend and magnitude of pCO2 changes remain among different proxy-derived results. The traditional paleosol pCO2 paleobarometer suffers from largely unconstrained soil-respired CO2 concentration (S(z)). Using finely disseminated carbonates precipitated in paleosols from the Chinese Loess Plateau, here we identified that their S(z) can be quantitatively constrained by soil magnetic susceptibility. Based on this approach, we reconstructed pCO2 during 2.6–0.9 Ma, which documents overall low pCO2 levels (

Suggested Citation

  • Jiawei Da & Yi Ge Zhang & Gen Li & Xianqiang Meng & Junfeng Ji, 2019. "Low CO2 levels of the entire Pleistocene epoch," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12357-5
    DOI: 10.1038/s41467-019-12357-5
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    Cited by:

    1. Jinbo Zan & Julien Louys & Robin Dennell & Michael Petraglia & Wenxiao Ning & Xiaomin Fang & Weilin Zhang & Zhe Hu, 2024. "Mid-Pleistocene aridity and landscape shifts promoted Palearctic hominin dispersals," Nature Communications, Nature, vol. 15(1), pages 1-13, December.

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