A variety of stakeholders of developing countries have greatly contributed to mainstreaming adaptation into national development strategies/ plans and/or national adaptation planning (NAP) processes as well as implementation of relevant actions which cope with sustainable development and the impacts of climate change. Bilateral and Multilateral donors have provided cooperation to such process and implementation of actions in developing countries. There are a variety of different kinds of experiences of, best practices of, and lessons from each process and actions, however, these are not well known among relevant actors. Therefore, MOEJ will take an initiative to develop 5 case studies of NAP processes as well as 5 case studies of actions in different sectors, which are developed and implemented in the Asia-Pacific region. In addition, MOEJ will develop a handbook, including case studies, lessons, based on studies, and process of main donors' assistance as well as organize a workshop to share these case studies and others among stakeholders.