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...
How global cities are taking action on an invisible killer
Mark Watts, Executive Director of C40 Cities, reflects on cities' progress in tackling air pollution and improving air quality for…
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.
‘Letter to Nature’ by Mayor of Guadalajara, Pablo Lemus Navarro
In a 'letter to nature', read what the Mayor of Guadalajara, Pablo Lemus Navarro, has to say about nature in…
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.