The event “Wastewater as a Solution”, a flagship event of GWWI, was organized during UNEA-7 (December 10th, 2025) as part of the activities led by the Source-to-Sea Pollution Unit. The event highlighted wastewater as both a resource and a solution, demonstrating how it can transform challenges into opportunities, and showcased practical and scalable examples from ongoing programmes, initiatives, and projects that illustrate innovative approaches to sustainable wastewater mana