Low CO2 levels of the entire Pleistocene epoch
Abstract Quantifying ancient atmospheric p CO 2 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 p CO 2 changes remain among different proxy-derived results. T...
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crspringernat:10.1038/s41467-019-12357-5 2023-05-15T16:39:09+02:00 Low CO2 levels of the entire Pleistocene epoch Da, Jiawei Zhang, Yi Ge Li, Gen Meng, Xianqiang Ji, Junfeng National Natural Science Foundation of China 2019 http://dx.doi.org/10.1038/s41467-019-12357-5 http://www.nature.com/articles/s41467-019-12357-5.pdf http://www.nature.com/articles/s41467-019-12357-5 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Nature Communications volume 10, issue 1 ISSN 2041-1723 General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry journal-article 2019 crspringernat https://doi.org/10.1038/s41467-019-12357-5 2022-01-04T08:10:33Z Abstract Quantifying ancient atmospheric p CO 2 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 p CO 2 changes remain among different proxy-derived results. The traditional paleosol p CO 2 paleobarometer suffers from largely unconstrained soil-respired CO 2 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 p CO 2 during 2.6–0.9 Ma, which documents overall low p CO 2 levels (<300 ppm) comparable with ice core records, indicating that the Earth system has operated under late Pleistocene p CO 2 levels for an extended period. The p CO 2 levels do not show statistically significant differences across the mid-Pleistocene Transition ( ca . 1.2–0.8 Ma), suggesting that CO 2 is probably not the driver of this important climate change event. Article in Journal/Newspaper ice core Springer Nature (via Crossref) Nature Communications 10 1 |
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Springer Nature (via Crossref) |
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English |
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General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
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General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry Da, Jiawei Zhang, Yi Ge Li, Gen Meng, Xianqiang Ji, Junfeng Low CO2 levels of the entire Pleistocene epoch |
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General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
description |
Abstract Quantifying ancient atmospheric p CO 2 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 p CO 2 changes remain among different proxy-derived results. The traditional paleosol p CO 2 paleobarometer suffers from largely unconstrained soil-respired CO 2 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 p CO 2 during 2.6–0.9 Ma, which documents overall low p CO 2 levels (<300 ppm) comparable with ice core records, indicating that the Earth system has operated under late Pleistocene p CO 2 levels for an extended period. The p CO 2 levels do not show statistically significant differences across the mid-Pleistocene Transition ( ca . 1.2–0.8 Ma), suggesting that CO 2 is probably not the driver of this important climate change event. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Da, Jiawei Zhang, Yi Ge Li, Gen Meng, Xianqiang Ji, Junfeng |
author_facet |
Da, Jiawei Zhang, Yi Ge Li, Gen Meng, Xianqiang Ji, Junfeng |
author_sort |
Da, Jiawei |
title |
Low CO2 levels of the entire Pleistocene epoch |
title_short |
Low CO2 levels of the entire Pleistocene epoch |
title_full |
Low CO2 levels of the entire Pleistocene epoch |
title_fullStr |
Low CO2 levels of the entire Pleistocene epoch |
title_full_unstemmed |
Low CO2 levels of the entire Pleistocene epoch |
title_sort |
low co2 levels of the entire pleistocene epoch |
publisher |
Springer Science and Business Media LLC |
publishDate |
2019 |
url |
http://dx.doi.org/10.1038/s41467-019-12357-5 http://www.nature.com/articles/s41467-019-12357-5.pdf http://www.nature.com/articles/s41467-019-12357-5 |
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ice core |
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ice core |
op_source |
Nature Communications volume 10, issue 1 ISSN 2041-1723 |
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https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-019-12357-5 |
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Nature Communications |
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10 |
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1 |
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1766029484833636352 |