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Uncertainty in climate-sensitivity estimates (Reply)

Author

Listed:
  • Gabriele C. Hegerl

    (Nicholas School of the Environment and Earth Sciences, Duke University, Durham, North Carolina 27708, USA hegerl@duke.edu)

  • Thomas J. Crowley

    (Present address: Department of Physics, University of Toronto, Toronto M5S 1A7, Canada)

  • William T. Hyde

    (Present address: Department of Physics, University of Toronto, Toronto M5S 1A7, Canada)

  • David J. Frame

    (Climate Dynamics Group, University of Oxford)

Abstract

Despite Schneider's claim1, the method we use to estimate equilibrium climate sensitivity from multiple proxy-based reconstructions of the temperature in the Northern Hemisphere2 does account for uncertainty in reconstructions, including that associated with non-temperature and sampling error in the reconstruction. We arrive at a tighter constraint on climate sensitivity not by neglecting uncertainties, but by combining our wide-tailed proxy-based estimate with an independent estimate of climate sensitivity based on twentieth-century warming.

Suggested Citation

  • Gabriele C. Hegerl & Thomas J. Crowley & William T. Hyde & David J. Frame, 2007. "Uncertainty in climate-sensitivity estimates (Reply)," Nature, Nature, vol. 446(7131), pages 2-2, March.
    • Handle: RePEc:nat:nature:v:446:y:2007:i:7131:d:10.1038_nature05708
    DOI: 10.1038/nature05708
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