Articles | Volume 15, issue 2
https://doi.org/10.5194/cp-15-539-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-15-539-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Mar 2019
Research article |
| 27 Mar 2019
| 27 Mar 2019
Insensitivity of alkenone carbon isotopes to atmospheric CO2 at low to moderate CO2 levels
Marcus P. S. Badger
CORRESPONDING AUTHOR
School of Environment, Earth & Ecosystem Sciences, The Open
University, Milton Keynes, MK7 6AA, UK
Organic Geochemistry Unit, School of Chemistry, School of Earth
Sciences, University of Bristol, Bristol, BS8 1TS, UK
Thomas B. Chalk
School of Ocean and Earth Science, National Oceanography Centre
Southampton, University of Southampton, Southampton, SO14 3ZH, UK
Department of Physical Oceanography, Woods Hole Oceanographic
Institution, Woods Hole, MA 02543, USA
Gavin L. Foster
School of Ocean and Earth Science, National Oceanography Centre
Southampton, University of Southampton, Southampton, SO14 3ZH, UK
Paul R. Bown
Department of Earth Sciences, University College London, London, WC1E
6BT, UK
Samantha J. Gibbs
School of Ocean and Earth Science, National Oceanography Centre
Southampton, University of Southampton, Southampton, SO14 3ZH, UK
Philip F. Sexton
School of Environment, Earth & Ecosystem Sciences, The Open
University, Milton Keynes, MK7 6AA, UK
Daniela N. Schmidt
School of Earth Sciences, University of Bristol, Wills Memorial
Building, Queens Road, Bristol, BS8 1RJ, UK
The Cabot Institute, University of Bristol, Bristol, BS8 1UJ, UK
Heiko Pälike
MARUM – Center for Marine Environmental Sciences, University of
Bremen, Bremen, Germany
Andreas Mackensen
Alfred Wegener Institute for Polar and Marine Research, Am Alten Hafen
26, Bremerhaven, Germany
Richard D. Pancost
Organic Geochemistry Unit, School of Chemistry, School of Earth
Sciences, University of Bristol, Bristol, BS8 1TS, UK
The Cabot Institute, University of Bristol, Bristol, BS8 1UJ, UK
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- Validation of carbon isotope fractionation in algal lipids as a pCO2 proxy using a natural CO2 seep (Shikine Island, Japan) C. Witkowski et al. 10.5194/bg-16-4451-2019
- The Earth's atmosphere – A stable isotope perspective and review J. Hoefs & R. Harmon 10.1016/j.apgeochem.2022.105355
- Stable carbon isotope ratios of pristine carbohydrates preserved within nannofossil calcite H. McClelland et al. 10.1016/j.gca.2024.09.007
- A phytol εp-based core-top calibration to reconstruct past changes in atmospheric CO2 O. Graham et al. 10.1016/j.gca.2025.04.014
- Testing algal-based pCO2 proxies at a modern CO2 seep (Vulcano, Italy) C. Witkowski et al. 10.1038/s41598-020-67483-8
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- Carbon Isotope Fractionation in Noelaerhabdaceae Algae in Culture and a Critical Evaluation of the Alkenone Paleobarometer S. Phelps et al. 10.1029/2021GC009657
- Toward a Cenozoic history of atmospheric CO 2 B. Hönisch et al. 10.1126/science.adi5177
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- Algal biomarkers as a proxy for pCO2: Constraints from late quaternary sapropels in the eastern Mediterranean C. Witkowski et al. 10.1016/j.orggeochem.2020.104123
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- Physiological control on carbon isotope fractionation in marine phytoplankton K. Brandenburg et al. 10.5194/bg-19-3305-2022
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- Climatic and tectonic drivers of late Oligocene Antarctic ice volume B. Duncan et al. 10.1038/s41561-022-01025-x
- Using paleoecological data to inform decision making: A deep-time perspective H. Dowsett et al. 10.3389/fevo.2022.972179
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- Late Miocene cooling coupled to carbon dioxide with Pleistocene-like climate sensitivity R. Brown et al. 10.1038/s41561-022-00982-7
- Cenozoic Antarctic Peninsula Temperatures and Glacial Erosion Signals From a Multi‐Proxy Biomarker Study E. Tibbett et al. 10.1029/2022PA004430
- Decreasing Atmospheric CO2 During the Late Miocene Cooling T. Tanner et al. 10.1029/2020PA003925
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- Stable carbon isotopes in paleoceanography: atmosphere, oceans, and sediments A. Mackensen & G. Schmiedl 10.1016/j.earscirev.2019.102893
42 citations as recorded by crossref.
- On the Cause of the Mid‐Pleistocene Transition C. Berends et al. 10.1029/2020RG000727
- Hydrographic control on carbon isotope fractionation in coccolithophores in the North Atlantic during the Mid-Pleistocene I. Hernández-Almeida et al. 10.1016/j.quascirev.2023.108081
- Into thin air: The loss of the pliocene giant volant birds A. Cannell & F. Degrange 10.1016/j.eve.2024.100055
- Drivers of Late Miocene Tropical Sea Surface Cooling: A New Perspective From the Equatorial Indian Ocean C. Martinot et al. 10.1029/2021PA004407
- Interglacials of the Quaternary defined by northern hemispheric land ice distribution outside of Greenland P. Köhler & R. van de Wal 10.1038/s41467-020-18897-5
- Validation of carbon isotope fractionation in algal lipids as a pCO2 proxy using a natural CO2 seep (Shikine Island, Japan) C. Witkowski et al. 10.5194/bg-16-4451-2019
- The Earth's atmosphere – A stable isotope perspective and review J. Hoefs & R. Harmon 10.1016/j.apgeochem.2022.105355
- Stable carbon isotope ratios of pristine carbohydrates preserved within nannofossil calcite H. McClelland et al. 10.1016/j.gca.2024.09.007
- A phytol εp-based core-top calibration to reconstruct past changes in atmospheric CO2 O. Graham et al. 10.1016/j.gca.2025.04.014
- Testing algal-based pCO2 proxies at a modern CO2 seep (Vulcano, Italy) C. Witkowski et al. 10.1038/s41598-020-67483-8
- Parallel between the isotopic composition of coccolith calcite and carbon levels across Termination II: developing a new paleo-CO2 probe C. Godbillot et al. 10.5194/cp-18-449-2022
- Carbon Isotope Fractionation in Noelaerhabdaceae Algae in Culture and a Critical Evaluation of the Alkenone Paleobarometer S. Phelps et al. 10.1029/2021GC009657
- Toward a Cenozoic history of atmospheric CO 2 B. Hönisch et al. 10.1126/science.adi5177
- Atmospheric CO2 over the Past 66 Million Years from Marine Archives J. Rae et al. 10.1146/annurev-earth-082420-063026
- Atmospheric CO2 Concentration Based on Boron Isotopes Versus Simulations of the Global Carbon Cycle During the Plio‐Pleistocene P. Köhler 10.1029/2022PA004439
- Atmospheric CO2 during the Mid-Piacenzian Warm Period and the M2 glaciation E. de la Vega et al. 10.1038/s41598-020-67154-8
- Biomarker proxies for reconstructing Quaternary climate and environmental change E. McClymont et al. 10.1002/jqs.3559
- Tectonic and climatic drivers of Asian monsoon evolution J. Thomson et al. 10.1038/s41467-021-24244-z
- The Isotopic Imprint of Life on an Evolving Planet M. Lloyd et al. 10.1007/s11214-020-00730-6
- Atmospheric carbon dioxide variations across the middle Miocene climate transition M. Raitzsch et al. 10.5194/cp-17-703-2021
- Coccolith size rules – What controls the size of coccoliths during coccolithogenesis? B. Suchéras-Marx et al. 10.1016/j.marmicro.2021.102080
- Algal biomarkers as a proxy for pCO2: Constraints from late quaternary sapropels in the eastern Mediterranean C. Witkowski et al. 10.1016/j.orggeochem.2020.104123
- Estimation of Physiological Factors Controlling Carbon Isotope Fractionation in Coccolithophores in Photic Zone and Core‐Top Samples I. Hernández‐Almeida et al. 10.1029/2020GC009272
- An Assessment of Earth's Climate Sensitivity Using Multiple Lines of Evidence S. Sherwood et al. 10.1029/2019RG000678
- The Miocene: The Future of the Past M. Steinthorsdottir et al. 10.1029/2020PA004037
- Refining the alkenone-pCO2 method II: Towards resolving the physiological parameter ‘b’ Y. Zhang et al. 10.1016/j.gca.2020.05.002
- Reconstructing the evolution of ice sheets, sea level, and atmospheric CO2 during the past 3.6 million years C. Berends et al. 10.5194/cp-17-361-2021
- Technical note: No impact of alkenone extraction on foraminiferal stable isotope, trace element and boron isotope geochemistry J. Crumpton-Banks et al. 10.5194/bg-19-5633-2022
- Carbon Isotopic Fractionation of Alkenones and Gephyrocapsa Coccoliths Over the Late Quaternary (Marine Isotope Stages 12–9) Glacial‐Interglacial Cycles at the Western Tropical Atlantic A. González‐Lanchas et al. 10.1029/2020PA004175
- Physiological control on carbon isotope fractionation in marine phytoplankton K. Brandenburg et al. 10.5194/bg-19-3305-2022
- Refining the alkenone-pCO2 method I: Lessons from the Quaternary glacial cycles Y. Zhang et al. 10.1016/j.gca.2019.06.032
- Atmospheric CO2 estimates for the Miocene to Pleistocene based on foraminiferal δ11B at Ocean Drilling Program Sites 806 and 807 in the Western Equatorial Pacific M. Guillermic et al. 10.5194/cp-18-183-2022
- Multispecies expression of coccolithophore vital effects with changing CO2 concentrations and pH in the laboratory with insights for reconstructing CO2 levels in geological history G. Le Guevel et al. 10.5194/bg-22-2287-2025
- Lessons from a high-CO2 world: an ocean view from ∼ 3 million years ago E. McClymont et al. 10.5194/cp-16-1599-2020
- Alkenone isotopes show evidence of active carbon concentrating mechanisms in coccolithophores as aqueous carbon dioxide concentrations fall below 7 µmol L−1 M. Badger 10.5194/bg-18-1149-2021
- Climatic and tectonic drivers of late Oligocene Antarctic ice volume B. Duncan et al. 10.1038/s41561-022-01025-x
- Using paleoecological data to inform decision making: A deep-time perspective H. Dowsett et al. 10.3389/fevo.2022.972179
- Controls on Alkenone Carbon Isotope Fractionation in the Modern Ocean S. Phelps et al. 10.1029/2021GC009658
- Late Miocene cooling coupled to carbon dioxide with Pleistocene-like climate sensitivity R. Brown et al. 10.1038/s41561-022-00982-7
- Cenozoic Antarctic Peninsula Temperatures and Glacial Erosion Signals From a Multi‐Proxy Biomarker Study E. Tibbett et al. 10.1029/2022PA004430
- Decreasing Atmospheric CO2 During the Late Miocene Cooling T. Tanner et al. 10.1029/2020PA003925
- Orbital- and millennial-scale Asian winter monsoon variability across the Pliocene–Pleistocene glacial intensification H. Ao et al. 10.1038/s41467-024-47274-9
1 citations as recorded by crossref.
Discussed (preprint)
Latest update: 08 Jul 2025
Short summary
Understanding how atmospheric CO2 has affected the climate of the past is an important way of furthering our understanding of how CO2 may affect our climate in the future. There are several ways of determining CO2 in the past; in this paper, we ground-truth one method (based on preserved organic matter from alga) against the record of CO2 preserved as bubbles in ice cores over a glacial–interglacial cycle. We find that there is a discrepancy between the two.
Understanding how atmospheric CO2 has affected the climate of the past is an important way of...
