Current approaches to identify the costs and benefits of adaptation are primarily quantitative, using top-down methodologies that may grossly under-estimate the true costs. This policy brief argues that global policies require credible evidence from the local level. Given that a single generic adaptation model is unworkable, the policy brief introduces a new analytical costing framework – Participatory Social Return on Investment (PSROI) – that has been piloted successfully in subsistence farming communities in East and West Africa.
Chaudhury, A. Unlocking the power of local knowledge: a novel framework to cost community-based adaptation to climate change. (2012) 7 pp.