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Holism,entrenchment, and the future of climate model pluralism
Authors:Johannes Lenhard  Eric Winsberg
Institution:1. University of Castilla-La Mancha (UCLM), Department of Environmental Sciences, Institute of Environmental Sciences, Toledo, Spain;2. National Council of Research, Institute of Atmospheric Sciences and Climate (CNR-ISAC), Bologna, Italy;3. Institute of Environment, University of León, Spain;4. NASA-Goddard Space Flight Center, Greenbelt, MD, USA;5. University of Maryland, College Park, MD, USA;6. National Center for Atmospheric Research, Boulder, CO, USA;7. Colorado State University, Ft. Collins, CO, USA;8. Institute for Space-Earth Environmental Research, Nagoya University, Japan;9. NASA-Marshall Space Flight Center, Huntsville, AL, USA;10. OMP/LEGOS, Toulouse, France;11. NASA-Jet Propulsion Laboratory, Pasadena, CA, USA
Abstract:In this paper, we explore the extent to which issues of simulation model validation take on novel characteristics when the models in question become particularly complex. Our central claim is that complex simulation models in general, and global models of climate in particular, face a form of confirmation holism. This holism, moreover, makes analytic understanding of complex models of climate either extremely difficult or even impossible. We argue that this supports a position we call convergence skepticism: the belief that the existence of a plurality of different models making a plurality of different forecasts of future climate is likely to be a persistent feature of global climate science.
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