What happened at London Climate Action Week?
Catch up on C40's highlights from the 2024 London Climate Action Week
Green job revolution: How C40 cities are leading the way
An analysis of 74 C40 cities found global megacities have 16 million good green jobs.
In Focus: London’s global climate leadership
As London Climate Action Week 2024 approaches, join us in celebrating the city’s achievements. Under the leadership of C40 Co-Chair...
Pope Francis and C40 mayors chart course for climate resilience
C40 mayors met His Holiness Pope Francis for the Vatican's climate resilience summit and made a united call for stronger…
C40 mayors attend Vatican climate summit, sign crucial climate protocol
C40 Co-Chair Mayor Sadiq Khan and 8 C40 mayors will meet with Pope Francis at the Vatican for the ‘Climate…
C40 releases 2023 Annual Report
Read the foreword by the C40 Co-Chairs, Mayor of London Sadiq Khan and Mayor of Freetown Yvonne Aki-Sawyerr