Geologic constraints on the glacial amplification of Phanerozoic climate sensitivity

  title={Geologic constraints on the glacial amplification of Phanerozoic climate sensitivity},
  author={Jeffrey Park and Dana L. Royer},
  journal={American Journal of Science},
  pages={1 - 26}
  • Jeffrey Park, D. Royer
  • Published 1 January 2011
  • Environmental Science, Geology
  • American Journal of Science
The long-term carbon cycle depends on many feedbacks. Silicate weathering consumes atmospheric CO2, but is also enhanced by the increased temperatures brought about by this important greenhouse gas. The long-term sensitivity ΔT2x of climate to CO2-doubling modulates the strength of this negative feedback. We update the model-experiment of Royer and others (2007) by estimating an empirical probability-density function (PDF) of ΔT2x for the Phanerozoic by using an improved GEOCARBSULF carbon… 

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