The document summarizes a presentation given at a scientific committee meeting about a project analyzing common lands for sustainable management. It describes the project's objectives to understand governance of forest commons and identify how local communities can effectively manage forests. It then outlines the methodology used, including defining commons through legal grids, comparative analysis, and case studies of model areas. Finally, it discusses the need to reform laws governing commons to better focus on environmental management and considers the role of commoners' institutions in sustainable resource policies.