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

Guadalajara Addis Ababa Curitiba Melbourne Kuala Lumpur Medellín Dar es Salaam Philadelphia Tshwane Amsterdam Ho Chi Minh City Phoenix Yokohama Beijing Qingdao Shenzhen Houston Quito Rome Miami Chennai Jakarta Hong Kong Guangzhou Barcelona Durban (eThekwini) Sydney Freetown Istanbul Amman Accra Delhi NCT Mexico City Guadalajara Addis Ababa Curitiba Melbourne Kuala Lumpur Medellín Dar es Salaam Philadelphia Tshwane Amsterdam Ho Chi Minh City Phoenix Yokohama Beijing Qingdao Shenzhen Houston Quito Rome Miami Chennai Jakarta Hong Kong Guangzhou Barcelona Durban (eThekwini) Sydney Freetown Istanbul Amman Accra Delhi NCT Mexico City

Casablanca Auckland Cape Town New Orleans Fuzhou Heidelberg Ahmedabad London Tel Aviv – Yafo Dhaka (North & South) Quezon City Rio de Janeiro Dubai Fortaleza Athens Bengaluru Portland Montréal Shanghai São Paulo Salvador Rotterdam Stockholm Paris Copenhagen Oslo Santiago Ekurhuleni Vancouver Berlin Bangkok Abidjan Seoul Casablanca Auckland Cape Town New Orleans Fuzhou Heidelberg Ahmedabad London Tel Aviv – Yafo Dhaka (North & South) Quezon City Rio de Janeiro Dubai Fortaleza Athens Bengaluru Portland Montréal Shanghai São Paulo Salvador Rotterdam Stockholm Paris Copenhagen Oslo Santiago Ekurhuleni Vancouver Berlin Bangkok Abidjan Seoul

Wuhan Zhenjiang Lagos Tokyo Nairobi Washington, DC Singapore Madrid Lima Johannesburg Milan San Francisco Hanoi Seattle Los Angeles Dalian Mumbai Nanjing Boston Dakar New York City Lisbon Bogotá Chicago Buenos Aires Toronto Hangzhou Chengdu Karachi Austin Warsaw Wuhan Zhenjiang Lagos Tokyo Nairobi Washington, DC Singapore Madrid Lima Johannesburg Milan San Francisco Hanoi Seattle Los Angeles Dalian Mumbai Nanjing Boston Dakar New York City Lisbon Bogotá Chicago Buenos Aires Toronto Hangzhou Chengdu Karachi Austin Warsaw