Every day, African cities create thousands of tonnes of organic waste that could be monetised. Sanitation waste and other wastewater, along with food and agricultural waste, can be turned into profit in the form of commercial fertiliser and soil conditioner, clean energy, and more, as well as contributing to a thriving, healthy, forward-looking economy. The UrbanCircle project will help cities, starting with Naivasha, Kenya, to explore how they could unlock this hidden potential.