This is an evaluation of estimates of the costs of adaptation made by the United NationsFramework Convention on Climate Change (UNFCCC) in 2007 and by some preceding studies(UNFCCC, 2007; Stern, 2006; World Bank, 2006; Oxfam, 2007; UNDP, 2007). The costs havebeen used as the basis for discussion regarding the...

Several recent studies have reported the costs of adapting to climate change, including for developing countries. They have similar-sized estimates and have been influential in United Nations (UN) negotiations aimed at tackling climate change. Our reassessment of one of these studies, which...