On March 17th, The United Nations Environment Programme (UNEP) has partnered with the Zero Waste Foundation to drive forward sustainable waste management and environmental protection. At the heart of this initiative is the establishment of a Zero Waste Knowledge Hub, aimed at contributing to the Istanbul Environment Centre, a Zero Waste Foundation undertaking. The Zero Waste Knowledge Hub will work in conjunction with the One UN Geospatial Situation Room, an open data platform of the 42 UN Agencies of the UN Geospatial Network established by the UN Committee of Experts on Global Geospatial Information Management. The Hub will be integrated in the World Environment Situation Room, UNEP´s Data, Information and Knowledge platform. The Zero Waste Knowledge Hub will provide real-time, high-quality geospatial data to policymakers, urban planners, and environmental experts, enabling evidence-based decision-making to reduce waste and support sustainable urban development.