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Abstract

The Palaeocene/Eocene thermal maximum, 55 million years ago, was a brief period of widespread, extreme climatic warming1,2,3, that was associated with massive atmospheric greenhouse gas input4. Although aspects of the resulting environmental changes are well documented at low latitudes, no data were available to quantify simultaneous changes in the Arctic region. Here we identify the Palaeocene/Eocene thermal maximum in a marine sedimentary sequence obtained during the Arctic Coring Expedition5. We show that sea surface temperatures near the North Pole increased from 18 °C to over 23 °C during this event. Such warm values imply the absence of ice and thus exclude the influence of ice-albedo feedbacks on this Arctic warming. At the same time, sea level rose while anoxic and euxinic conditions developed in the ocean's bottom waters and photic zone, respectively. Increasing temperature and sea level match expectations based on palaeoclimate model simulations6, but the absolute polar temperatures that we derive before, during and after the event are more than 10 °C warmer than those model-predicted. This suggests that higher-than-modern greenhouse gas concentrations must have operated in conjunction with other feedback mechanisms—perhaps polar stratospheric clouds7 or hurricane-induced ocean mixing8—to amplify early Palaeogene polar temperatures.

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References

  1. 1.

    et al. A transient rise in tropical sea surface temperature during the Paleocene-Eocene thermal maximum. Science 302, 1151–1154 (2003)

  2. 2.

    & Abrupt deep-sea warming, palaeoceanographic changes and benthic extinctions at the end of the Palaeocene. Nature 353, 225–229 (1991)

  3. 3.

    & Deep-sea temperature and circulation changes at the Paleocene-Eocene thermal maximum. Science 308, 1894–1898 (2005)

  4. 4.

    , , & Dissociation of oceanic methane hydrate as a cause of the carbon isotope excursion at the end of the Paleocene. Paleoceanography 10, 965–971 (1995)

  5. 5.

    , , , & . Arctic Coring Expedition (ACEX). Proc. ODP 302 I/doi:10.2204/iodp.proc.302.2006 (Integrated Ocean Drilling Program Management International, College Station, Texas, 2006)

  6. 6.

    , & Climate model sensitivity to atmospheric CO2 levels in the Early-Middle Paleogene. Palaeogeogr. Palaeoclimatol. Palaeoecol. 193, 113–123 (2003)

  7. 7.

    & Polar stratospheric clouds: A high latitude warming mechanism in an ancient greenhouse world. Geophys. Res. Lett. 25, 3517–3520 (1998)

  8. 8.

    , , & Environmental Control of Tropical Cyclone Intensity. J. Atmos. Sci. 61, 843–858 (2004)

  9. 9.

    , & Correlation between isotope records in marine and continental carbon reservoirs near the Palaeocene/Eocene boundary. Nature 358, 319–322 (1992)

  10. 10.

    , , & A new chronology for the late Paleocene thermal maximum and its environmental implications. Geology 28, 927–930 (2000)

  11. 11.

    et al. Global dinoflagellate event associated with the late Paleocene thermal maximum. Geology 29, 315–318 (2001)

  12. 12.

    & in Correlation of the Early Paleogene in Northwestern Europe (eds Knox, R. W. O. B., Corfield, R. M. & Dunay, R. E.) 401–441 (Geological Society of London Special Publication 101, 1996)

  13. 13.

    in Late Paleocene–early Eocene Climatic and Biotic Events in the Marine and Terrestrial Records (eds Aubry, M.-P., Lucas, S. G. & Berggren, W. A.) 380–400 (Columbia Univ. Press, New York, 1998)

  14. 14.

    et al. Mammalian dispersal at the Paleocene/Eocene boundary. Science 295, 2062–2065 (2002)

  15. 15.

    & in Late Paleocene–early Eocene Climatic and Biotic Events in the Marine and Terrestrial Records (eds Aubry, M.-P., Lucas, S. G. & Berggren, W. A.) 277–295 (Columbia Univ. Press, New York, 1998)

  16. 16.

    et al. Arctic's hydrology during global warming at the Palaeocene/Eocene thermal maximum. Nature (submitted)

  17. 17.

    et al. in Causes and Consequences of Globally Warm Climates in the Early Paleogene (eds Wing, S. L., Gingerich, P., Schmitz, B. & Thomas, E.) 291–317 (Geological Society of America Special Paper 369, Boulder, Colorado, 2003)

  18. 18.

    , , & Distributional variations in marine crenarchaeotal membrane lipids: a new tool for reconstructing ancient sea water temperatures? Earth Planet. Sci. Lett. 204, 265–274 (2002)

  19. 19.

    , , & Temperature-dependent variation in the distribution of tetraether membrane lipids of marine Crenarchaeota: Implications for TEX86 paleothermometry. Paleoceanography 19, doi:10.1029/2004PA001041 (2004)

  20. 20.

    Fossil crocodilians as indicators of Late Cretaceous and Cenozoic climates: Implications for using palaeontological data in reconstructing palaeoclimate. Palaeogeogr. Palaeoclimatol. Palaeoecol. 137, 205–271 (1998)

  21. 21.

    , , & Late Paleocene Arctic coastal climate inferred from molluscan stable and radiogenic isotope ratios. Palaeogeogr. Palaeoclimatol. Palaeoecol. 170, 101–113 (2001)

  22. 22.

    , , & High temperatures in the Late Cretaceous Arctic Ocean. Nature 432, 888–892 (2004)

  23. 23.

    & Oxygen isotope and paleobotanical estimates of temperature and δ18O-latitude gradients over North America during the early Eocene. Am. J. Sci. 304, 612–635 (2004)

  24. 24.

    et al. Episodic fresh surface waters in the Eocene Arctic Ocean. Nature doi:10.1038/nature04692 (this issue)

  25. 25.

    , & From greenhouse to icehouse; organic-walled dinoflagellate cysts as paleoenvironmental indicators in the Paleogene. Earth Sci. Rev. 68, 281–315 (2005)

  26. 26.

    et al. A novel proxy for terrestrial organic matter in sediments based on branched and isoprenoid tetraether lipids. Earth Planet. Sci. Lett. 224, 107–116 (2004)

  27. 27.

    & Ostracode turnover and sea-level changes associated with the Paleocene-Eocene thermal maximum. Geology 30, 23–26 (2002)

  28. 28.

    , , , & A 6,000-year sedimentary molecular record of chemocline excursions in the Black Sea. Nature 362, 827–829 (1993)

  29. 29.

    , & in Causes and Consequences of Globally Warm Climates in the Early Palaeogene (eds Wing, S. L., Gingerich, P. D., Schmitz, B. & Thomas, E.) 25–47 (Geological Society of America Special Paper 369, Boulder, Colorado, 2003)

  30. 30.

    & The dynamic range of poleward energy transport in an atmospheric general circulation model. Geophys. Res. Lett. 32, doi: 10.1029/2004GL021581 (2005)

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Acknowledgements

A.S. thanks the Utrecht Biogeology Centre for funding. H.B. thanks the Netherlands Organization for Scientific Research, and Utrecht University for enabling participation in the ACEX expedition. M.H. thanks the Purdue Climate Change Research Center, ITaP and the Purdue Research Foundation for their continued support. This research used samples and data provided by the IODP. We thank L. Bik, J. van Tongeren, N. Welters and A. van Dijk for technical support, and C. E. Stickley for discussions. Author Contributions A.S. and H.B. carried out the palynology, A.S. & G.-J.R. the δ13CTOC, S.S., M.W. and J.S.S.D. the TEX86′, BIT and isorenieratane analyses. R.S. generated the hydrogen index data. J.B. and K.M. were the co-chiefs of the ACEX expedition. N.P., J.M and the Expedition 302 Scientists were involved in generating shipboard and shore-based ACEX data. A.S., S.S., M.P., H.B., J.S.S.D., G.R.D., M.H. and L.J.L. contributed to interpreting the data and writing the paper.

Author information

Author notes

    • Appy Sluijs
    •  & Stefan Schouten

    *These authors contributed equally to this work

Affiliations

  1. Palaeoecology, Institute of Environmental Biology, Utrecht University, Laboratory of Palaeobotany and Palynology, Budapestlaan 4, 3584 CD Utrecht, The Netherlands

    • Appy Sluijs
    •  & Henk Brinkhuis
  2. Royal Netherlands Institute for Sea Research (NIOZ), Department of Marine Biogeochemistry and Toxicology, PO Box 59, 1790 AB, Den Burg, Texel, The Netherlands

    • Stefan Schouten
    • , Martijn Woltering
    •  & Jaap S. Sinninghe Damsté
  3. Department of Geology and Geophysics, Yale University, PO Box 208109, New Haven, Connecticut 06520, USA

    • Mark Pagani
    •  & Nikolai Pedentchouk
  4. Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands

    • Jaap S. Sinninghe Damsté
    • , Gert-Jan Reichart
    •  & Lucas J. Lourens
  5. Department of Earth Sciences, Rice University, 6100 Main Street, Houston, Texas 77005, USA

    • Gerald R. Dickens
  6. Earth and Atmospheric Sciences Department and the Purdue Climate Change Research Center, Purdue University, 550 Stadium Mall Drive, West Lafayette, Indiana 47906, USA

    • Matthew Huber
  7. Alfred-Wegener-Institute for Polar and Marine Research, Columbusstrasse, 27568 Bremerhaven, Germany

    • Ruediger Stein
    •  & Jens Matthiessen
  8. Department of Geology and Geochemistry, Stockholm University, Stockholm, SE-106 91, Sweden

    • Jan Backman
  9. University of Rhode Island, Bay Campus, Narragansett, Rhode Island 02882, USA

    • Kathryn Moran

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  1. the Expedition 302 Scientists

    A list of authors and affiliations appears at the end of the paper

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Competing interests

Reprints and permissions information is available at npg.nature.com/reprintsandpermissions. The authors declare no competing financial interests.

Corresponding authors

Correspondence to Appy Sluijs or Stefan Schouten.

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    Supplementary Notes

    This file contains Supplementary Methods, Supplementary Discussion, Supplementary Figures 1–3, Supplementary Table 1 and additional references.

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https://doi.org/10.1038/nature04668

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