How C40’s model of collaboration will shape the future of global climate action

To mark its 20th anniversary, C40 is proud to launch a book that celebrates two decades of transformative global climate action. This book honours the thousands of practical and successful climate initiatives delivered by C40 mayors, who have worked tirelessly over the years to protect the people and places we love.

By pioneering a unique model of collaboration, C40 cities have fundamentally shaped global climate action as we know it, driven by multilateral partnerships with national governments, corporations, unions, non-profits, and residents. Our story continues, ensuring that C40 remains at the forefront of the global climate fight.