The state and relevance of Systems as a field of research and a specific form of scientific inquiry into complex real-world problem situations, can be enhanced significantly by developing and applying more formalized and coherent tools: a new ‘hardware' enabling to build a new ‘hardcore' for...

Introduction -- Historical reflection : a brief genealogy of sustainable development -- Sustainability and climate change -- Sustainability and energy systems -- Sustainability and food systems -- Sustainability as transformation and reflexivity