Rahmstorf et al. 2004
Rahmstorf, S., D. Archer, D.S. Ebel, O. Eugster, J. Jouzel, D. Maraun,, J. Severinghaus, A.J. Weaver, and J. Zachos, 2004: Cosmic rays, carbon dioxide, and climate. Eos Trans. Amer. Geophys. Union, 85, 38, 41.
Several recent papers have applied correlation analysis to climate-related time series in the hope of finding evidence for causal relationships. For a critical discussion of correlations between solar variability, cosmic rays, and cloud cover, see Laut .
A prominent new example is a paper by Shaviv and Veizer, which claims that fluctuations in cosmic ray flux reaching the Earth can explain 66% of the temperature variance over the past 520 m.y., and that the sensitivity of climate to a doubling of CO2 is less than previously estimated.
Here we present a critical appraisal of the methods and conclusions of Shaviv and Veizer .
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