Global Mayors will tackle the climate crisis at C40 World Mayors Summit
Mayors will gather in Buenos Aires for triennial conference on local climate action and securing a sustainable, equitable future Summit...
London Mayor Sadiq Khan joins Mayors from Freetown, Bogotá and Bristol to launch the World’s To-Do List
The campaign will unite global city leaders in their commitment to leverage the power of local action to achieve the…
Ten major African cities sign onto C40 clean air declaration to improve public health and climate
Ten African city leaders today announced their ambitious commitment to improving air quality by joining the C40 Clean Air Cities…
C40 releases 2021 Annual Report
An excerpt from C40's 2021 Annual Report written by C40 Chair Mayor of London Sadiq Khan and C40 Executive Director…
C40: 2021 in focus
A round-up of the key activities and achievements of C40 Cities in 2021.
A letter by Mayor Eric Garcetti, Chair of C40 Cities 2019–2021
Mayor of Los Angeles Eric Garcetti reflects on his time as the Chair of C40 Cities.