Group 4 discusses concepts related to climate change adaptation including autonomous and planned adaptation, adaptive capacity, and mainstreaming adaptation into development projects. Article 1 presents two forms of adaptation and discusses how adaptation is more difficult for extreme climate change and how sustainable development depends on adaptive capacity. Article 2 suggests mainstreaming adaptation into all development projects and notes that adaptation is a local process, but that the portfolio screening method used to assess projects limits generalizing the results. Both articles primarily take a top-down approach to adaptation without fully considering local implementation factors.