This guidebook on integrating climate change into city development strategies (CDS) attempts to provide a modest input into the effort of unifying two key thematic areas, Climate Change and City Development Strategies. This attempt of climate proofing city development strategies is an ongoing process and requires additional effort by governments, academia, and city development partners worldwide. The World Bank, the United Nations Human Settlement Programme (UN-Habitat) and the United Nations Environment Programme (UNEP) collaborated in a Joint Work Programme (JWP) to help cities address challenges related to climate change, aiming to facilitate a coordinated, focused effort targeting cities and climate change.