ICLEI, or Local Governments for Sustainability, is a global network comprising over 2,500 local and regional governments dedicated to promoting sustainable urban development. Established in 1990, ICLEI operates in more than 125 countries, focusing on achieving zero-emission, nature-based, and equitable development. The organization emphasizes peer exchange and partnerships, providing technical consulting and tools to assist local governments in meeting their sustainability objectives. ICLEI's efforts align with global frameworks, including the United Nations' Sustainable Development Goals, ensuring local initiatives contribute to broader sustainability agendas. In Europe, ICLEI collaborates with key institutions like the European Commission to aid local governments in implementing the European Green Deal. With offices in Freiburg, Berlin, and Brussels, ICLEI's European Secretariat enhances community resilience while promoting innovative practices among its member cities.