The course (2 modules) introduces to different approaches in applying sustainable development in the international context. It examines the contexts (geopolitical, institutional, historical, economic, technological), with the links between environment/climate change and poverty/inequality, and global/local agendas for SD. Then it analyses different implementation methods adopted by a wide range of stakeholders. It adds techniques for: participatory planning, management of environmental conflicts, anthropological analysis (module 1). Then (module 2) it faces an environmental project in a real territory context. Carried on in partnership with international/local actors, it culminates in a field mission, prepared both at technical and project management level. Students learn: to apply their theoretical knowledge to the project, to interact with several public/private actors, to manage projects in multicultural and interdisciplinary contexts.