Paris serves as a lighthouse city under the GEF-8 Sustainable Cities Integrated Program (SCIP), championing climate neutrality, biodiversity restoration, and people-centered urban design. Building on its leadership in sustainable mobility and green infrastructure, Paris shares policy innovations and technical expertise through the GPSC Global Knowledge Platform, supporting peer cities worldwide in advancing nature-positive and inclusive urban development. The city integrates adaptation and decarbonization goals across planning and investment frameworks, promoting green roofs, low-emission zones, and expanded public space networks. Through initiatives such as its Climate Action Plan and Biodiversity Strategy, Paris demonstrates how cities can combine environmental ambition with social inclusion, inspiring the global transition toward resilient and livable urban environments.