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Adaptation Can Help Mitigation: An Integrated Approach to Post-2012 Climate Policy

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  • Francesco Bosello

    (University of Milan and Fondazione Eni Enrico Mattei)

  • Carlo Carraro

    (University of Venice, CEPR, CESifo and Fondazione Eni Enrico Mattei)

  • Enrica De Cian

    (University Ca’ Foscari of Venice and Fondazione Eni Enrico Mattei)

Abstract

The latest round of international negotiations in Copenhagen led to a set of commitments on emission reductions which are unlikely to stabilise global warming below or around 2°C. As a consequence, in the absence of additional ambitious policy measures, adaptation will be needed to address climate-related damages. What is the role of adaptation in this setting? How is it optimally allocated across regions and time? To address these questions, this paper analyses the optimal mix of adaptation and mitigation expenditures in a cost-effective setting in which countries cooperate to achieve a long-term stabilisation target (550 CO2-eq). It uses an Integrated Assessment Model (AD-WITCH) that describes the relationships between different adaptation modes (reactive and anticipatory), mitigation, and capacity-building to analyse the optimal portfolio of adaptation measures. Results show the optimal intertemporal distribution of climate policy measures is characterised by early investments in mitigation followed by large adaptation expenditures a few decades later. Hence, the possibility to adapt does not justify postponing mitigation, although it reduces its costs. Mitigation and adaptation are thus shown to be complements rather than substitutes.

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Bibliographic Info

Paper provided by Fondazione Eni Enrico Mattei in its series Working Papers with number 2011.69.

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Date of creation: Sep 2011
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Handle: RePEc:fem:femwpa:2011.69

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Keywords: Climate Change Impacts; Mitigation; Adaptation; Integrated Assessment Model;

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Cited by:
  1. Benchekroun, H. & Marrouch, W. & Ray Chaudhuri, A., 2011. "Adaptation Effectiveness and Free-Riding Incentives in International Environmental Agreements," Discussion Paper 2011-120, Tilburg University, Center for Economic Research.
  2. Francesco Bosello & Enrica De Cian, 2013. "Climate Change, Sea Level Rise, and Coastal Disasters. A Review of Modeling Practices," Working Papers 2013.104, Fondazione Eni Enrico Mattei.
  3. Karen Fisher-Vanden & Ian Sue Wing & Elisa Lanzi & David Popp, 2013. "Modeling climate change feedbacks and adaptation responses: recent approaches and shortcomings," Climatic Change, Springer, vol. 117(3), pages 481-495, April.

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