Special session on United for Smart Sustainable Cities (U4SSC) Initiative

The United for Smart Sustainable Cities (U4SSC) is the United Nations' premier platform for shaping the cities of the future—people-centered, digitally inclusive, climate-resilient, and sustainable. With support from 20 UN entities, U4SSC empowers local leaders to share, learn, and lead transformative change. This special session will be held on 5 November 2025 in Barcelona, Spain, from 9:30 to 13:30 Barcelona time.