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

Salvador New Orleans London Mumbai Yokohama Toronto Shanghai Montréal Fortaleza Vancouver Freetown Mexico City Heidelberg Quito Lima Cape Town Dakar San Francisco Durban (eThekwini) Ho Chi Minh City Phoenix Ahmedabad Portland Bengaluru Bangkok Nanjing Boston Chengdu Dar es Salaam Barcelona Abidjan Quezon City Accra Salvador New Orleans London Mumbai Yokohama Toronto Shanghai Montréal Fortaleza Vancouver Freetown Mexico City Heidelberg Quito Lima Cape Town Dakar San Francisco Durban (eThekwini) Ho Chi Minh City Phoenix Ahmedabad Portland Bengaluru Bangkok Nanjing Boston Chengdu Dar es Salaam Barcelona Abidjan Quezon City Accra

Dalian Beijing Rome Paris Miami Delhi NCT Berlin Milan Lisbon Chicago Dhaka (North & South) Rio de Janeiro Santiago Shenzhen Philadelphia Addis Ababa Seoul Tokyo Lagos Hangzhou Hanoi Tshwane Copenhagen Chennai Athens Houston Jakarta Seattle Rotterdam Johannesburg Sydney Bogotá Fuzhou Dalian Beijing Rome Paris Miami Delhi NCT Berlin Milan Lisbon Chicago Dhaka (North & South) Rio de Janeiro Santiago Shenzhen Philadelphia Addis Ababa Seoul Tokyo Lagos Hangzhou Hanoi Tshwane Copenhagen Chennai Athens Houston Jakarta Seattle Rotterdam Johannesburg Sydney Bogotá Fuzhou

Guadalajara Curitiba Amsterdam Warsaw Nairobi Auckland São Paulo Melbourne Medellín Austin Hong Kong Karachi Wuhan Madrid Stockholm Dubai Guangzhou Zhenjiang Kuala Lumpur Amman Buenos Aires Ekurhuleni Washington, DC Istanbul Tel Aviv – Yafo Qingdao Casablanca Oslo New York City Los Angeles Singapore Guadalajara Curitiba Amsterdam Warsaw Nairobi Auckland São Paulo Melbourne Medellín Austin Hong Kong Karachi Wuhan Madrid Stockholm Dubai Guangzhou Zhenjiang Kuala Lumpur Amman Buenos Aires Ekurhuleni Washington, DC Istanbul Tel Aviv – Yafo Qingdao Casablanca Oslo New York City Los Angeles Singapore