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

Guangzhou San Francisco Beijing Karachi Jakarta Tokyo Milan Abidjan Chennai Philadelphia Madrid Bangkok Rio de Janeiro Seattle Lisbon Tshwane Shenzhen Barcelona Quito Melbourne Singapore Accra Fortaleza Stockholm Wuhan Copenhagen Montréal Buenos Aires Zhenjiang Delhi NCT Los Angeles Nanjing Seoul Guangzhou San Francisco Beijing Karachi Jakarta Tokyo Milan Abidjan Chennai Philadelphia Madrid Bangkok Rio de Janeiro Seattle Lisbon Tshwane Shenzhen Barcelona Quito Melbourne Singapore Accra Fortaleza Stockholm Wuhan Copenhagen Montréal Buenos Aires Zhenjiang Delhi NCT Los Angeles Nanjing Seoul

Phoenix Oslo Amsterdam Portland Quezon City Santiago New York City Miami Vancouver Nairobi Dar es Salaam Dubai Bogotá Houston Berlin Lima Bengaluru Washington, DC Austin Salvador Rotterdam Durban (eThekwini) Curitiba Qingdao Fuzhou Casablanca Dalian Tel Aviv – Yafo Heidelberg Hangzhou Shanghai Kuala Lumpur Istanbul Phoenix Oslo Amsterdam Portland Quezon City Santiago New York City Miami Vancouver Nairobi Dar es Salaam Dubai Bogotá Houston Berlin Lima Bengaluru Washington, DC Austin Salvador Rotterdam Durban (eThekwini) Curitiba Qingdao Fuzhou Casablanca Dalian Tel Aviv – Yafo Heidelberg Hangzhou Shanghai Kuala Lumpur Istanbul

Auckland Lagos Freetown Dakar Boston Dhaka (North & South) São Paulo Ahmedabad Paris Yokohama Amman Warsaw London Rome Hanoi Addis Ababa Guadalajara Sydney Hong Kong Mumbai Johannesburg Toronto Mexico City New Orleans Ekurhuleni Ho Chi Minh City Chengdu Medellín Cape Town Athens Chicago Auckland Lagos Freetown Dakar Boston Dhaka (North & South) São Paulo Ahmedabad Paris Yokohama Amman Warsaw London Rome Hanoi Addis Ababa Guadalajara Sydney Hong Kong Mumbai Johannesburg Toronto Mexico City New Orleans Ekurhuleni Ho Chi Minh City Chengdu Medellín Cape Town Athens Chicago