Can the principles of circular economy significantly reduce urban waste in megacities?

As urban populations continue to skyrocket, megacities face mounting challenges in managing waste sustainably. The circular economy, which emphasizes minimizing waste through principles such as reusing, refurbishing, and recycling, offers a potential solution to these challenges. By redesigning systems to keep products, materials, and resources in use for as long as possible, the circular economy could transform how urban waste is handled. However, implementing such a system in densely populated areas raises questions about infrastructure feasibility, economic incentives, and public participation. How viable is it for megacities to transition to a circular economy, and what impact could this have on reducing the environmental footprint of urban waste?