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

Istanbul Delhi NCT Accra Fortaleza Berlin Zhenjiang Portland Phoenix Shanghai Abidjan Barcelona Rome Seattle Lagos Ekurhuleni Chengdu Dalian Los Angeles Auckland Addis Ababa Paris Austin Toronto Cape Town London Singapore Nanjing Shenzhen Houston Casablanca Qingdao Tshwane Montréal Istanbul Delhi NCT Accra Fortaleza Berlin Zhenjiang Portland Phoenix Shanghai Abidjan Barcelona Rome Seattle Lagos Ekurhuleni Chengdu Dalian Los Angeles Auckland Addis Ababa Paris Austin Toronto Cape Town London Singapore Nanjing Shenzhen Houston Casablanca Qingdao Tshwane Montréal

Lisbon Copenhagen Stockholm Kuala Lumpur Melbourne Sydney Madrid Bengaluru Warsaw Quito Miami Ho Chi Minh City Lima Bangkok Freetown Seoul Guangzhou Chennai Rio de Janeiro New York City Medellín Karachi Fuzhou Washington, DC Heidelberg Guadalajara Vancouver Dhaka (North & South) San Francisco São Paulo Dubai Johannesburg Tel Aviv – Yafo Lisbon Copenhagen Stockholm Kuala Lumpur Melbourne Sydney Madrid Bengaluru Warsaw Quito Miami Ho Chi Minh City Lima Bangkok Freetown Seoul Guangzhou Chennai Rio de Janeiro New York City Medellín Karachi Fuzhou Washington, DC Heidelberg Guadalajara Vancouver Dhaka (North & South) San Francisco São Paulo Dubai Johannesburg Tel Aviv – Yafo

Rotterdam Curitiba Athens Amman Salvador Durban (eThekwini) Mexico City Buenos Aires Milan Ahmedabad Jakarta Santiago Oslo Dakar Hangzhou Wuhan Dar es Salaam Bogotá Boston Amsterdam New Orleans Hanoi Hong Kong Nairobi Quezon City Beijing Yokohama Mumbai Philadelphia Tokyo Chicago Rotterdam Curitiba Athens Amman Salvador Durban (eThekwini) Mexico City Buenos Aires Milan Ahmedabad Jakarta Santiago Oslo Dakar Hangzhou Wuhan Dar es Salaam Bogotá Boston Amsterdam New Orleans Hanoi Hong Kong Nairobi Quezon City Beijing Yokohama Mumbai Philadelphia Tokyo Chicago