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
C40 Voices: Constant Alarcon, Senior Manager, Clean Energy
Meet the incredible people behind our work at C40, who contribute to building a more sustainable and equitable world.
The end of the fossil fuel era is in sight
C40 Executive Director Mark Watts reflects on the outcomes of COP28
C40 Co-Chairs Mayor Aki-Sawyerr and Mayor Khan react to COP28 final agreement
As COP28 negotiations ended, an agreement was penned, with governments reaching a historic, first-time consensus to transition away from fossil...
Breathe Cities unveils new cohort of cities to join ambitious initiative to fight toxic air pollution
Announced at COP28, the new Breathe Cities cohort includes Accra, Brussels, Jakarta, Johannesburg, Milan, Nairobi, Paris, Rio de Janeiro and…