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Séminaire du CIRED : Christophe CASSEN (CIRED)

par Estelle Carciofi - publié le , mis à jour le


Greenhouse gas emission scenarios are key in analyses of human interference with the climate system. They are mainly produced by one category of computer models : Integrated Assessment Models (IAMs). We analyse how IAM research organised into a community around the production of socio-economic scenarios during the preparation of the IPCC AR5 (2005-2014). We seek to describe the co-emergence of a research community, its instruments, and its domain of applicability. We highlight the role of the IPCC process in the making of the IAM community, showing how IAM worked their way to an influent position. We then survey three elements of the repertoire that served to organise collective work on scenarios in interaction with the IPCC and the European Union, and which now frames the community and its epistemic practices. This case illustrates how epistemic communities rest upon a constant articulation of epistemic practices with the pursuit of policy relevance.

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