[en] This first edition of the Adaptation Report offers a global overview of territorial adaptation actions: Conceptual and political history of adaptation in international climate negotiations; Progress of local and regional authorities' international cooperation initiatives on adaptation; 6 case studies on the adaptation of cities and regions, from all continents; 6 case studies on the adaptation strategies of economic sectors; Review of international funds available for adaptation. This Book tells the political and conceptual story of adaptation in international climate negotiations (section 1), before analyzing sub-national and local governments initiatives (section 2) through global reports and case studies. We then study adaptation issues raised and answers provided in six sectors of the economy (section 3), to finally conclude with an overview of financial flows and tools for adaptation (section 4).