Rethinking Urban Sanitation with Circular Economy Principles

This background paper serves as a foundational document for the World Bank report titled 'The Global Sanitation Crisis: Pathways to Urgent Action'. It details the integration of circular economy principles into urban sanitation systems as a strategy to enhance resilience against climate change, improve sustainability, and reduce costs. The paper outlines the challenges posed by climate change to urban sanitation, including infrastructure damage from extreme weather and resource scarcity. It emphasizes the potential of circular economy approaches to transform sanitation systems into resource recovery opportunities rather than waste management issues. The document presents various methods for implementing these principles, such as optimizing existing infrastructure, diversifying water sources, and enhancing energy efficiency. It also discusses the benefits of onsite sanitation solutions and the role of nature-based solutions in promoting ecosystem restoration. The findings indicate that circular sanitation systems can significantly reduce greenhouse gas emissions and facilitate access to climate finance, thereby creating economic opportunities and fostering local development.