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

Salvador Rome Chicago Boston Quezon City Lagos Fuzhou Curitiba Cape Town Hanoi Durban (eThekwini) Stockholm Dar es Salaam Shenzhen Mumbai Santiago Kuala Lumpur Heidelberg Amman Berlin Barcelona San Francisco Philadelphia Auckland Istanbul Sydney Hangzhou Bogotá Austin Mexico City Wuhan Copenhagen Dhaka (North & South) Salvador Rome Chicago Boston Quezon City Lagos Fuzhou Curitiba Cape Town Hanoi Durban (eThekwini) Stockholm Dar es Salaam Shenzhen Mumbai Santiago Kuala Lumpur Heidelberg Amman Berlin Barcelona San Francisco Philadelphia Auckland Istanbul Sydney Hangzhou Bogotá Austin Mexico City Wuhan Copenhagen Dhaka (North & South)

Ho Chi Minh City Qingdao Dalian Ahmedabad Milan Fortaleza Dakar Paris Tshwane Toronto London Chengdu Zhenjiang Houston Melbourne Accra Washington, DC Oslo Hong Kong Buenos Aires Nairobi Guadalajara New Orleans Yokohama Portland Tel Aviv – Yafo Shanghai Lima Lisbon Ekurhuleni Dubai Guangzhou Chennai Ho Chi Minh City Qingdao Dalian Ahmedabad Milan Fortaleza Dakar Paris Tshwane Toronto London Chengdu Zhenjiang Houston Melbourne Accra Washington, DC Oslo Hong Kong Buenos Aires Nairobi Guadalajara New Orleans Yokohama Portland Tel Aviv – Yafo Shanghai Lima Lisbon Ekurhuleni Dubai Guangzhou Chennai

Seoul Johannesburg Vancouver New York City Delhi NCT Los Angeles Freetown Montréal Madrid Rotterdam Athens Seattle Amsterdam Miami Tokyo Rio de Janeiro Casablanca Warsaw Bengaluru Medellín Bangkok Jakarta Addis Ababa São Paulo Singapore Phoenix Abidjan Beijing Nanjing Quito Karachi Seoul Johannesburg Vancouver New York City Delhi NCT Los Angeles Freetown Montréal Madrid Rotterdam Athens Seattle Amsterdam Miami Tokyo Rio de Janeiro Casablanca Warsaw Bengaluru Medellín Bangkok Jakarta Addis Ababa São Paulo Singapore Phoenix Abidjan Beijing Nanjing Quito Karachi