Global cities convene in London to tackle triple threat of congestion, air pollution and the climate emergency
Mayor of London and Chair of C40 Cities Sadiq Khan is convening global cities to accelerate city-led action on the…
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 announces collaboration to map consumption-based emissions in two of the world’s biggest cities
C40 Cities is thrilled to announce a new partnership with American Express to support the development of consumption-based emissions inventories…
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.