The Conference is a multidisciplinary event on urban sustainability and the use of Nature-Based Solutions (NBS) in Portuguese municipalities. Its main goal is to promote knowledge sharing among experts, researchers, and policymakers, encouraging the adoption of green infrastructure across Portugal. The 2nd Edition of IGIC 2025 will focus more directly on municipalities, fostering collaboration, inspiring best practices, and supporting sustainable policies for a greener, more resilient future. It is organized by Greenroofs® (National Association of Green Roofs), the Porto City Council through Águas e Energia do Porto, and the Serralves Foundation.