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Evidence for general instability of past climate from a 250-kyr ice-core record

Abstract

RECENT results1,2 from two ice cores drilled in central Greenland have revealed large, abrupt climate changes of at least regional extent during the late stages of the last glaciation, suggesting that climate in the North Atlantic region is able to reorganize itself rapidly, perhaps even within a few decades. Here we present a detailed stable-isotope record for the full length of the Greenland Ice-core Project Summit ice core, extending over the past 250 kyr according to a calculated timescale. We find that climate instability was not confined to the last glaciation, but appears also to have been marked during the last interglacial (as explored more fully in a companion paper3) and during the previous Saale–Holstein glacial cycle. This is in contrast with the extreme stability of the Holocene, suggesting that recent climate stability may be the exception rather than the rule. The last interglacial seems to have lasted longer than is implied by the deep-sea SPECMAP record4, in agreement with other land-based observations5,6. We suggest that climate instability in the early part of the last interglacial may have delayed the melting of the Saalean ice sheets in America and Eurasia, perhaps accounting for this discrepancy.

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References

  1. Johnsen, S. J. et al. Nature 359, 311–313 (1992).

    ADS  Article  Google Scholar 

  2. Taylor, K. C. et al. Nature 361, 432–436 (1993).

    ADS  Article  Google Scholar 

  3. GRIP Members Nature, 364, 203–207 (1993).

    ADS  Article  Google Scholar 

  4. Martinson, D. G. et al. Quat. Res. 27, 1–29 (1987).

    CAS  Article  Google Scholar 

  5. Jouzel, J. et al. Nature (in the press).

  6. Winograd, I. J. et al. Science 258, 255–260 (1992).

    ADS  CAS  Article  Google Scholar 

  7. Ekholm, S. & Keller, K. Nat. Survey and Cadastre, Geodetic Div., Tech. Rep. No. 6 (Copenhagen, Denmark, 1993).

  8. Gundestrup, N. S. & Johnsen, S. J. in Greenland Ice Cores: Geophysics, Geochemistry and Environment (eds Langway, C. C. Jr, Oeschger, H. & Dansgaard, W.) 19–22 (Am. Geophys. Un. Geophys. Monogr. 33, (Washington DC, 1985).

    Book  Google Scholar 

  9. Johnsen, S. J., Dansgaard, W. & White, J. W. C. Tellus B41, 452–468, (1992).

    Article  Google Scholar 

  10. Dansgaard, W. & Johnsen, S. J. J. Glaciol. 8, 215–223 (1969).

    ADS  Article  Google Scholar 

  11. Johnsen, S. J. & Dansgaard, W. in The Last Deglaciation: Absolute and Radiocarbon Chronologies (eds Bard, E. & Broecker, W. S.) (NATO ASI Series 2, 1992).

    Google Scholar 

  12. Bard, E. et al. Radiocarbon (in the press).

  13. Staffelbach, T., Stauffer, B. & Oeschger, H. Ann. Glaciol. 10, 167–170 (1988).

    ADS  CAS  Article  Google Scholar 

  14. Hodge, S. M. et al. J. Glaciol. 36, 17–27 (1990).

    ADS  Article  Google Scholar 

  15. Hammer, C. U. et al. J. Glaciol. 20, 3–26 (1978).

    ADS  Article  Google Scholar 

  16. Behre, K.-E. & van der Plicht, J. Veg. Hist. Archaeobot. 1, 111–117 (1992).

    Article  Google Scholar 

  17. Ulrych, T. J. & Bishop, T. N. Rev. Geophys. Space Phys. 13, 183–200 (1975).

    ADS  Article  Google Scholar 

  18. Oeschger, H. et al. in Climate Processes and Climate Sensitivity (ed. Hansen, F.) 299–306 (Am. Geophys. Un. Geophys. Monogr. 29, Washington DC, 1984).

    Book  Google Scholar 

  19. Broeker, W. S., Bond G., Klas, M., Bonani, G. & Wolfli, W. Palaeoceanography 5, 469–477 (1990).

    ADS  Article  Google Scholar 

  20. Dansgaard, W., Clausen, H. B., Johnsen, S. J. & Langway, C. C. Quat. Res. 2, 396–398 (1972).

    Article  Google Scholar 

  21. Paterson, W. S. B. et al. Nature 266, 508–511 (1977).

    ADS  CAS  Article  Google Scholar 

  22. Raynaud, D. et al. Science 259, 926–934 (1993).

    ADS  CAS  Article  Google Scholar 

  23. Kellogg, T. B. Marine Micropaleontol. 2, 235–249 (1977).

    ADS  Article  Google Scholar 

  24. Bond, G., Broecker, W., Lotti, R. S. & McManus, J. in Start of a Glacial (eds Kukla, G. J. & Went, E.) 185–205 (NATO ASI Series I 3, Springer, Heidelberg, 1992).

    Book  Google Scholar 

  25. Ruddiman, W. F., Raymo, M. E., Martinson, D. G., Clement, B. M. & Bachman, J. Palaeoceanogr. 4, 353–412 (1989).

    ADS  Article  Google Scholar 

  26. Linke, G., Katzenberg, O. & Grün, R. Quat. Sci. Rev. 4, 319–331 (1985).

    ADS  Article  Google Scholar 

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Dansgaard, W., Johnsen, S., Clausen, H. et al. Evidence for general instability of past climate from a 250-kyr ice-core record. Nature 364, 218–220 (1993). https://doi.org/10.1038/364218a0

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