In order to close nutrient cycles, many stakeholders must work together

Kai Udert, Sabine Hoffmann and Lisa Deutsch in conversation (Photo: Eawag, Peter Penicka) - Researchers Sabine Hoffmann, Kai Udert and Lisa Deutsch are committed to a sanitation and nutrient transformation. They use an example to explain why a transformation is needed and why collaboration with politicians in particular is a challenge. "Resources from the bowl are the key" (in German: "Ressourcen aus der Schüssel sind der Schlüssel") is the title of a discussion paper that Sabine Hoffmann, Lisa Deutsch and Kai Udert developed together with a transdisciplinary team from research, politics and practice. The authors focus on the context of Germany. The paper encourages sanitation and nutrient transformation and is aimed at decision-makers as well as practitioners and politicians. In doing so, it shows concrete options for action to advance the implementation of a sanitation and nutrient transformation. Why should we question the current sewage system?.