A transition management framework to stimulate a circular phosphorus system

Techno-economic and life cycle analysis of circular phosphorus systems in agriculture

Fertilizer runoff is a global nuisance that disrupts biogeochemical cycles of nitrogen and phosphorus. We perform techno-economic and life cycle analyses of selected approaches for enabling a circular economy of phosphorus. We consider four schemes: capturing P with ion-exchange resins followed by precipitation, interception by wetland and recovery in char after biomass pyrolysis, removal by bioreactor and recovery in char after bioreactor substrate pyrolysis, and using legacy phosphorus accumulated in a saturated wetland to grow crops by wetlaculture. For each system, we analyze the mass flow, calculate the degree of circularity, and examine the feasibility by techno-economic and life cycle analyses. We find that although ion exchange outperforms the others, the associated economic and emissions burden are too high. Approaches that rely on wetlands are most economically attractive and can have lower impact. However, without policy interventions, the linear economy of phosphorus is likely to remain economically most attractive.

Bringing Transition Management to Cities: Building Skills for Transformative Urban Governance

Cities are open to trialing new approaches for advancing their planning and urban governance practice. Evidence from urban research and practice shows that transition management has been widely and diversely applied for strategic planning for climate mitigation and adaptation, regeneration, as well as sectoral (energy, water, waste) and social cohesion agendas. Despite the amounting evidence of the applications of transition management, the research has not identified what it is required in terms of skills to apply such a governance framework for participatory governance in cities. In this paper, we respond to this gap by providing evidence from 11 cities across Europe that applied transition management as an approach to participatory urban governance for unpacking what transformative actions are required to strengthen urban resilience in deprived neighborhoods. Our multi-case study research and analysis reveals that a multitude of vocational and academic skills are required for the application of transition management approach including systems thinking, creativity, theory-to-practice application skills, diplomatic skills for forging partnerships and learning alliances and openness to learning-by-doing during experimentation. Transition management application in cities in the Resilient Europe project brought about positive outcomes in terms of developing new skills, embedding new knowledge about urban resilience and transition management in planning.