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

Oslo Chicago Shanghai Philadelphia Kolkata Mumbai Medellín Tokyo Bogotá Melbourne Bengaluru Ahmedabad Paris Guadalajara Addis Ababa Chengdu Amman Seattle Barcelona Lima Delhi NCT Rotterdam Rome Mexico City Johannesburg Istanbul Copenhagen San Francisco Houston Shenzhen Dalian Ekurhuleni Oslo Chicago Shanghai Philadelphia Kolkata Mumbai Medellín Tokyo Bogotá Melbourne Bengaluru Ahmedabad Paris Guadalajara Addis Ababa Chengdu Amman Seattle Barcelona Lima Delhi NCT Rotterdam Rome Mexico City Johannesburg Istanbul Copenhagen San Francisco Houston Shenzhen Dalian Ekurhuleni

Boston Hanoi Heidelberg Qingdao Sydney Cape Town Dar es Salaam Dubai Buenos Aires Yokohama Dakar Accra Nairobi Santiago Kuala Lumpur Singapore Zhenjiang Tshwane Lagos Bangkok Austin Vancouver New York City Washington, DC Ho Chi Minh City Amsterdam Quito Chennai London Athens Hangzhou Milan Boston Hanoi Heidelberg Qingdao Sydney Cape Town Dar es Salaam Dubai Buenos Aires Yokohama Dakar Accra Nairobi Santiago Kuala Lumpur Singapore Zhenjiang Tshwane Lagos Bangkok Austin Vancouver New York City Washington, DC Ho Chi Minh City Amsterdam Quito Chennai London Athens Hangzhou Milan

Warsaw Fuzhou Dhaka (North & South) Tel Aviv – Yafo Portland Salvador Hong Kong Seoul Stockholm Nanjing São Paulo Quezon City Curitiba Wuhan Auckland New Orleans Miami Freetown Karachi Jakarta Durban (eThekwini) Guangzhou Berlin Montréal Toronto Abidjan Rio de Janeiro Beijing Los Angeles Lisbon Phoenix Madrid Warsaw Fuzhou Dhaka (North & South) Tel Aviv – Yafo Portland Salvador Hong Kong Seoul Stockholm Nanjing São Paulo Quezon City Curitiba Wuhan Auckland New Orleans Miami Freetown Karachi Jakarta Durban (eThekwini) Guangzhou Berlin Montréal Toronto Abidjan Rio de Janeiro Beijing Los Angeles Lisbon Phoenix Madrid