C40 cities are taking action
Around the world, C40 cities are driving bold solutions to the climate crisis. As part of the C40 World Mayors...
UN Secretary-General receives local leaders’ joint outcome statement during COP30 World Leaders Summit
The statement is the final outcome from the Local Leaders Forum in Rio de Janeiro – a declaration of support...
World Mayors Summit Day 3
We do this for our today, we do this for our tomorrow, and we will do this together. This was...
COP30 Local Leaders Forum Statement
A Message from Local Leaders to COP30 Statement of support from more than 14,000 local leaders to national governments at...
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...