C40 is a global network of mayors of the world’s leading cities that are united in action to confront the climate crisis.

Guadalajara Quito Warsaw Karachi San Francisco Dakar Johannesburg Mexico City Addis Ababa Nanjing Fuzhou Salvador Istanbul Ekurhuleni Boston Athens Tokyo Durban (eThekwini) Dalian Chengdu Ho Chi Minh City Rome Hangzhou Guangzhou Singapore Bogotá Heidelberg Tel Aviv – Yafo Paris Wuhan Amsterdam Freetown Curitiba Guadalajara Quito Warsaw Karachi San Francisco Dakar Johannesburg Mexico City Addis Ababa Nanjing Fuzhou Salvador Istanbul Ekurhuleni Boston Athens Tokyo Durban (eThekwini) Dalian Chengdu Ho Chi Minh City Rome Hangzhou Guangzhou Singapore Bogotá Heidelberg Tel Aviv – Yafo Paris Wuhan Amsterdam Freetown Curitiba

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