This chapter sets out the objectives and scope of this policy guidance; its target audience; and its structure.

This chapter introduces fundamental concepts related to weather, climate variability and climate change. It also outlines the implications of climate change for weather extremes.

This chapter highlights the implications of climate change on key sectors important for development as well as the impacts of climate change on the developing world.

This chapter sets out what is involved in adaptation to the impacts of climate change and how adaptation is different from regular development.

This chapter sets out a four-step generic approach to assessing adaptation actions. These include: (i) identifying current and future vulnerabilities and climate risks; (ii) identifying adaptation measures; (iii) evaluating and selecting adaptation options; and (iv) evaluating “success” of adaptation. It goes on to discuss implementing and “mainstreaming” adaptation, the approach of this policy guidance.