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

Rio de Janeiro Amman Addis Ababa Bengaluru Cape Town Freetown Miami New Orleans Fuzhou Barcelona Fortaleza Los Angeles Beijing Dubai Dar es Salaam Washington, DC Vancouver Montréal Buenos Aires Lima Johannesburg Nairobi New York City Philadelphia Ahmedabad Madrid San Francisco Portland Durban (eThekwini) Toronto Seoul Wuhan Chengdu Rio de Janeiro Amman Addis Ababa Bengaluru Cape Town Freetown Miami New Orleans Fuzhou Barcelona Fortaleza Los Angeles Beijing Dubai Dar es Salaam Washington, DC Vancouver Montréal Buenos Aires Lima Johannesburg Nairobi New York City Philadelphia Ahmedabad Madrid San Francisco Portland Durban (eThekwini) Toronto Seoul Wuhan Chengdu

Austin Medellín Milan Bogotá Ho Chi Minh City Abidjan Istanbul Phoenix Quezon City Guangzhou Rotterdam Mexico City Zhenjiang Amsterdam Boston Paris Jakarta Auckland Berlin Casablanca Copenhagen Shanghai Hong Kong Nanjing Quito Tshwane Dalian Qingdao Kuala Lumpur Chennai Dakar Delhi NCT Chicago Austin Medellín Milan Bogotá Ho Chi Minh City Abidjan Istanbul Phoenix Quezon City Guangzhou Rotterdam Mexico City Zhenjiang Amsterdam Boston Paris Jakarta Auckland Berlin Casablanca Copenhagen Shanghai Hong Kong Nanjing Quito Tshwane Dalian Qingdao Kuala Lumpur Chennai Dakar Delhi NCT Chicago

Melbourne Ekurhuleni Guadalajara Houston Rome Lagos Accra Oslo Santiago Mumbai Hangzhou Tel Aviv – Yafo Lisbon Shenzhen Karachi Curitiba São Paulo Singapore Tokyo Heidelberg Warsaw Salvador Seattle Yokohama Athens Dhaka (North & South) London Stockholm Hanoi Sydney Bangkok Melbourne Ekurhuleni Guadalajara Houston Rome Lagos Accra Oslo Santiago Mumbai Hangzhou Tel Aviv – Yafo Lisbon Shenzhen Karachi Curitiba São Paulo Singapore Tokyo Heidelberg Warsaw Salvador Seattle Yokohama Athens Dhaka (North & South) London Stockholm Hanoi Sydney Bangkok