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...
C40 launches urban design competition in 12 cities to transform underutilised sites into low carbon urban projects
The third edition of Reinventing Cities launched today, inviting creative multidisciplinary teams – including architects, developers, community groups and more...
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…
Buenos Aires to host C40 World Mayors Summit 2022
Mayor Horacio Rodríguez Larreta today announced that the City of Buenos Aires will host the C40 World Mayors Summit in…
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.