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How unusual is today's solar activity?

Author

Listed:
  • Raimund Muscheler

    (National Center for Atmospheric Research, Paleoclimatology)

  • Fortunat Joos

    (Climate and Environmental Physics, Physics Institute, University of Bern)

  • Simon A. Müller

    (Climate and Environmental Physics, Physics Institute, University of Bern)

  • Ian Snowball

    (GeoBiosphere Science Centre, Quaternary Sciences, Lund University)

Abstract

Arising from: S. K. Solanki, I. G. Usoskin, B. Kromer, M. Schüssler & J. Beer Nature 431, 1084–1087 (2004); Solanki et al. reply . To put global warming into context requires knowledge about past changes in solar activity and the role of the Sun in climate change. Solanki et al.1 propose that solar activity during recent decades was exceptionally high compared with that over the preceding 8,000 years. However, our extended analysis of the radiocarbon record reveals several periods during past centuries in which the strength of the magnetic field in the solar wind was similar to, or even higher than, that of today.

Suggested Citation

  • Raimund Muscheler & Fortunat Joos & Simon A. Müller & Ian Snowball, 2005. "How unusual is today's solar activity?," Nature, Nature, vol. 436(7050), pages 3-4, July.
    • Handle: RePEc:nat:nature:v:436:y:2005:i:7050:d:10.1038_nature04045
    DOI: 10.1038/nature04045
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