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...
Mutirão in action at C40 World Mayors Summit as cities lead the way to COP30
Rio de Janeiro, Brazil (4 November 2025) – As the C40 World Mayors Summit enters its second day, city leaders...
World Mayors Summit Day 1
The World Mayors Summit 2025 opened with a powerful plenary as the Mayors of London, Freetown, and Rio de Janeiro...
Global cities unite to tackle the risks of extreme heat
Rio de Janeiro, Brazil (3 November 2025) – A new global coalition of cities has today pledged urgent action to...
Cities lead the world in climate action as C40 World Mayors Summit 2025 begins in Rio
Rio de Janeiro, Brazil (3 November 2025) – Mayor of London Sadiq Khan and Mayor of Rio de Janeiro Eduardo...
Bloomberg Philanthropies names 26 cities as finalists for the 2025 Local Leaders Awards
Today, Bloomberg Philanthropies announced the finalists for the 2025 Bloomberg Philanthropies Local Leaders Awards, which recognise the best policies, projects, or...