Fossil gas is as harmful as coal
By C40 Executive Director Mark Watts At a meeting shortly before the beginning of COP27, 17 gas-exporting governments pledged to...
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…
How London’s net zero plans are a win for all Londoners
In a report published today on London's net zero plans, Chair of C40 and Mayor of London Sadiq Khan has…
C40: 2021 in focus
A round-up of the key activities and achievements of C40 Cities in 2021.