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

Bangkok Athens New York City Rio de Janeiro London Barcelona Milan Lagos Guadalajara Paris Salvador Tokyo Istanbul Houston Fuzhou Addis Ababa Durban (eThekwini) São Paulo Mumbai Kuala Lumpur Abidjan Beijing Zhenjiang Dar es Salaam Washington, DC Dubai Freetown Tshwane Buenos Aires Philadelphia Copenhagen Boston Curitiba Bangkok Athens New York City Rio de Janeiro London Barcelona Milan Lagos Guadalajara Paris Salvador Tokyo Istanbul Houston Fuzhou Addis Ababa Durban (eThekwini) São Paulo Mumbai Kuala Lumpur Abidjan Beijing Zhenjiang Dar es Salaam Washington, DC Dubai Freetown Tshwane Buenos Aires Philadelphia Copenhagen Boston Curitiba

Melbourne Accra Dakar Oslo Toronto Portland Dalian Chennai Casablanca Ho Chi Minh City Madrid Lisbon Quezon City Warsaw Hangzhou Stockholm Jakarta Los Angeles Dhaka (North & South) Shenzhen Nairobi Seattle Hong Kong Shanghai Santiago Johannesburg Vancouver Delhi NCT Amman Rotterdam Medellín Karachi Ahmedabad Melbourne Accra Dakar Oslo Toronto Portland Dalian Chennai Casablanca Ho Chi Minh City Madrid Lisbon Quezon City Warsaw Hangzhou Stockholm Jakarta Los Angeles Dhaka (North & South) Shenzhen Nairobi Seattle Hong Kong Shanghai Santiago Johannesburg Vancouver Delhi NCT Amman Rotterdam Medellín Karachi Ahmedabad

Ekurhuleni Seoul Singapore Hanoi Quito Heidelberg Austin Wuhan Montréal Sydney New Orleans Tel Aviv – Yafo Bengaluru Auckland Fortaleza Guangzhou Miami Chicago Nanjing Rome Lima Berlin Mexico City Yokohama San Francisco Amsterdam Qingdao Phoenix Bogotá Cape Town Chengdu Ekurhuleni Seoul Singapore Hanoi Quito Heidelberg Austin Wuhan Montréal Sydney New Orleans Tel Aviv – Yafo Bengaluru Auckland Fortaleza Guangzhou Miami Chicago Nanjing Rome Lima Berlin Mexico City Yokohama San Francisco Amsterdam Qingdao Phoenix Bogotá Cape Town Chengdu