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

Guadalajara Dhaka (North & South) Stockholm Fortaleza Shenzhen Rio de Janeiro Dalian Johannesburg Wuhan Philadelphia Nanjing Durban (eThekwini) Hong Kong Medellín Quezon City Amman Tel Aviv – Yafo Montréal Dar es Salaam Ekurhuleni Ho Chi Minh City Abidjan Qingdao Quito Shanghai Copenhagen Amsterdam Accra Auckland Melbourne Fuzhou Vancouver Beijing Guadalajara Dhaka (North & South) Stockholm Fortaleza Shenzhen Rio de Janeiro Dalian Johannesburg Wuhan Philadelphia Nanjing Durban (eThekwini) Hong Kong Medellín Quezon City Amman Tel Aviv – Yafo Montréal Dar es Salaam Ekurhuleni Ho Chi Minh City Abidjan Qingdao Quito Shanghai Copenhagen Amsterdam Accra Auckland Melbourne Fuzhou Vancouver Beijing

Istanbul Zhenjiang Miami Karachi Curitiba Freetown Hangzhou Washington, DC Mexico City Lima Bangkok Athens Toronto Ahmedabad Warsaw Boston Kuala Lumpur Hanoi Bogotá Nairobi Chicago Paris Chennai Delhi NCT Cape Town Berlin Barcelona Bengaluru Dubai Addis Ababa Milan Rome Jakarta Istanbul Zhenjiang Miami Karachi Curitiba Freetown Hangzhou Washington, DC Mexico City Lima Bangkok Athens Toronto Ahmedabad Warsaw Boston Kuala Lumpur Hanoi Bogotá Nairobi Chicago Paris Chennai Delhi NCT Cape Town Berlin Barcelona Bengaluru Dubai Addis Ababa Milan Rome Jakarta

Casablanca Heidelberg Salvador Tshwane San Francisco Phoenix Portland Rotterdam Oslo New York City Los Angeles São Paulo Yokohama Houston Dakar Santiago Mumbai Sydney Tokyo Guangzhou London Buenos Aires Madrid Chengdu Seattle Austin New Orleans Seoul Singapore Lisbon Lagos Casablanca Heidelberg Salvador Tshwane San Francisco Phoenix Portland Rotterdam Oslo New York City Los Angeles São Paulo Yokohama Houston Dakar Santiago Mumbai Sydney Tokyo Guangzhou London Buenos Aires Madrid Chengdu Seattle Austin New Orleans Seoul Singapore Lisbon Lagos