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

Casablanca Rome Curitiba Delhi NCT Copenhagen Miami Johannesburg Hanoi Karachi Amsterdam Santiago Fuzhou Hangzhou Boston Dar es Salaam Shenzhen Ahmedabad Berlin Addis Ababa Austin Guadalajara Guangzhou Washington, DC Seattle Quito Stockholm Portland Mexico City Tel Aviv – Yafo Cape Town Medellín Dalian Philadelphia Casablanca Rome Curitiba Delhi NCT Copenhagen Miami Johannesburg Hanoi Karachi Amsterdam Santiago Fuzhou Hangzhou Boston Dar es Salaam Shenzhen Ahmedabad Berlin Addis Ababa Austin Guadalajara Guangzhou Washington, DC Seattle Quito Stockholm Portland Mexico City Tel Aviv – Yafo Cape Town Medellín Dalian Philadelphia

Auckland Athens Rotterdam Dhaka (North & South) Buenos Aires Chicago Fortaleza Heidelberg Lisbon Mumbai Accra Wuhan Ekurhuleni New Orleans Bangkok Bengaluru Houston Tokyo Zhenjiang Milan Salvador San Francisco Madrid Kuala Lumpur Warsaw Dubai Nairobi Barcelona Hong Kong Jakarta Abidjan Vancouver Beijing Auckland Athens Rotterdam Dhaka (North & South) Buenos Aires Chicago Fortaleza Heidelberg Lisbon Mumbai Accra Wuhan Ekurhuleni New Orleans Bangkok Bengaluru Houston Tokyo Zhenjiang Milan Salvador San Francisco Madrid Kuala Lumpur Warsaw Dubai Nairobi Barcelona Hong Kong Jakarta Abidjan Vancouver Beijing

Los Angeles New York City Rio de Janeiro Bogotá Oslo Freetown Montréal Durban (eThekwini) Sydney Lima London Tshwane Paris Phoenix Melbourne Nanjing Chengdu Shanghai Toronto Qingdao Singapore Istanbul São Paulo Quezon City Amman Seoul Ho Chi Minh City Lagos Dakar Chennai Yokohama Los Angeles New York City Rio de Janeiro Bogotá Oslo Freetown Montréal Durban (eThekwini) Sydney Lima London Tshwane Paris Phoenix Melbourne Nanjing Chengdu Shanghai Toronto Qingdao Singapore Istanbul São Paulo Quezon City Amman Seoul Ho Chi Minh City Lagos Dakar Chennai Yokohama