Adapting to Climate Change: An Analysis Under Uncertainty

40 Pages Posted: 7 Mar 2016  

David García-León

Universidad de Alicante

Date Written: March 2, 2016


Climate change is a phenomenon beset with major uncertainties and researchers should include them in Integrated Assessment Models. However, including further dimensions in IAM models comes at a cost. In particular, it makes most of these models suffer from the curse of dimensionality. In this study we benefit from a state-reduced framework to overcome those problems. In an attempt to advance in the modelling of adaptation within IAM models, we apply this methodology to shed some light on how the optimal balance between mitigation and adaptation changes under different stochastic scenarios. We find that stochastic technology growth hardly affects the optimal bundle of mitigation and adaptation whereas uncertainty about the value of climate sensitivity and the possibility of tipping points hitting the system change substantially the composition of the optimal mix as both persuade the risk-averse social planner to invest more in mitigation. Overall, we identify that including uncertainty into the model tends to favour (long-lasting) mitigation with respect to (instantaneous) adaptation. Further research should address the properties of the optimal mix when a stock of adaptation can be built.

Keywords: Climate Change, Adaptation, Mitigation, Dynamic Programming, Uncertainty, Integrated Assessment, DICE

JEL Classification: C61, D58, D90, O44, Q01, Q54, Q56

Suggested Citation

García-León, David, Adapting to Climate Change: An Analysis Under Uncertainty (March 2, 2016). FEEM Working Paper No. 010.2016. Available at SSRN: or

David García-León (Contact Author)

Universidad de Alicante ( email )

Campus de San Vicente
Carretera San Vicente del Raspeig
San Vicente del Raspeig, Alicante 03690

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