Brazil, C40 Cities, and the Global Covenant of Mayors announce new mutirão effort to accelerate urban climate solutions in Brazil
Supported by Bloomberg Philanthropies and facilitated by the Brazilian National Front of Mayors (FNP), the partnership will help 50 Brazilian...
World Mayors Summit Day 2
Cooler cities, transformed food systems, and climate-focused urban planning. At the 2025 World Mayors Summit, C40 Cities announced three new...
Mayors lead the way on a climate just transition for cities
Rio de Janeiro, Brazil (4 November 2025) – Mayors, union leaders, and government representatives from around the world met on...
Climate Migration Task Force Meets at C40 World Mayors Summit and Welcomes New Members Karachi and Guadalajara
Rio de Janeiro, Brazil – Ahead of COP30, mayors from across the globe met in person to reaffirm a shared...
Global Methane Hub Announces $10 Million Investment to Accelerate Methane Reduction in Latin American and Caribbean Cities
Rio de Janeiro (November 4, 2025) – Today, at the 2025 C40 World Mayors Summit (WMS), building on the success...
Belo Horizonte, São Paulo, Rabat and Cartagena to receive funding boost for new climate projects
Rio de Janeiro, Brazil (4 November 2025) – Four new cities have been chosen to receive support from the C40...