Extending integrated assessment models′ damage functions to include adaptation and dynamic sensitivity

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Abstract

Through stylized damage functions, Integrated Assessment Models (IAMs) provide estimates of the economic costs that would occur for absolute changes in global temperature. In these damage functions, adaptation, sensitivity and their interactions are often combined in an intractable way. In this theoretical study we propose a new type of damage functions that allows mapping economic losses in terms of how extreme global temperature changes are in relation to a coping range representing the capacity of a system to deal with the climate conditions experienced at a particular period of time. In these new damage functions, which can be applied to the regional and global scales, adaptation to a changing climate is introduced by allowing the reference climate to be a function of time instead of a fixed quantity. Different formulations of damage functions discussed in the literature arise as special cases.

Original languageEnglish
Article number104504
JournalEnvironmental Modelling and Software
Volume121
DOIs
Publication statusPublished - 1 Nov 2019

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damage
climate
Economics
climate conditions
theoretical study
economics
temperature
Temperature
cost
Costs

Keywords

  • Adaptation
  • Coping range
  • Economic costs of climate change
  • Integrated assessment model
  • System dynamics

Cite this

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abstract = "Through stylized damage functions, Integrated Assessment Models (IAMs) provide estimates of the economic costs that would occur for absolute changes in global temperature. In these damage functions, adaptation, sensitivity and their interactions are often combined in an intractable way. In this theoretical study we propose a new type of damage functions that allows mapping economic losses in terms of how extreme global temperature changes are in relation to a coping range representing the capacity of a system to deal with the climate conditions experienced at a particular period of time. In these new damage functions, which can be applied to the regional and global scales, adaptation to a changing climate is introduced by allowing the reference climate to be a function of time instead of a fixed quantity. Different formulations of damage functions discussed in the literature arise as special cases.",
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