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...
Urban 20 mayors call on G20 to foster a sustainable economic and social recovery for all
At the Urban 20 Summit in Jakarta, city leaders sign a communiqué calling for more investments in sustainable mobility and…
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...
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…