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

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  • Bosello, Francesco
  • Carraro, Carlo
  • De Cian, Enrica

Abstract

The latest round of international negotiations in Copenhagen led to a set of commitments on emission reduction 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.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 8909.

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Date of creation: Mar 2012
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Handle: RePEc:cpr:ceprdp:8909

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Keywords: adaptation; climate change impacts; integrated assessment model; mitigation;

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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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