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Interpreting the Probabilistic Language in IPCC Reports

Dethier, Corey (2022) Interpreting the Probabilistic Language in IPCC Reports. [Preprint]

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Abstract

The Intergovernmental Panel on Climate Change (IPCC) often qualifies its statements by use of probabilistic “likelihood” language. In this paper, I show that this language is not properly interpreted in either frequentist or Bayesian terms—simply put, the IPCC uses both kinds of statistics to calculate these likelihoods. I then offer a deflationist interpretation: the probabilistic language expresses nothing more than how compatible the evidence is with the given hypothesis according to some method that generates normalized scores. I end by drawing some tentative normative conclusions.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Dethier, Coreycorey.dethier@gmail.com0000-0002-1240-8391
Additional Information: Forthcoming in *Ergo*
Keywords: Probability, IPCC, Climate Science
Subjects: Specific Sciences > Climate Science and Meteorology
Specific Sciences > Probability/Statistics
Depositing User: Dr. Corey Dethier
Date Deposited: 15 Nov 2022 18:51
Last Modified: 15 Nov 2022 18:51
Item ID: 21422
Subjects: Specific Sciences > Climate Science and Meteorology
Specific Sciences > Probability/Statistics
Date: 2022
URI: https://philsci-archive.pitt.edu/id/eprint/21422

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