Climate proofing infrastructure in Bangladesh: the incremental cost of limiting future inland monsoon flood damage

This paper presents a detailed bottom-up methodology to estimate the adaptation cost to intensified floods in a changing climate and intends to shed light in climate negotiations as a prototype of adaptation cost to extreme weather events, asserting that investments in increased understanding of risk-mitigation options and in economic mobility would have especially high returns. It examines the potential cost of offsetting increased flooding risk from climate change, based on simulations from a climate model of extreme floods out to 2050 in Bangladesh, and considers the capital-intensive investments, improved policies, planning and institutions that would be essential to ensure that such investments are used correctly and yield the expected benefits.