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

Ahmedabad Dubai Yokohama Portland Paris Salvador Berlin London Madrid Nanjing Chennai Buenos Aires Istanbul Melbourne Cape Town Boston Delhi NCT Barcelona Quezon City Karachi Montréal Medellín Ekurhuleni Wuhan New York City Sydney Lagos Milan Zhenjiang Tokyo Freetown Rotterdam Toronto Ahmedabad Dubai Yokohama Portland Paris Salvador Berlin London Madrid Nanjing Chennai Buenos Aires Istanbul Melbourne Cape Town Boston Delhi NCT Barcelona Quezon City Karachi Montréal Medellín Ekurhuleni Wuhan New York City Sydney Lagos Milan Zhenjiang Tokyo Freetown Rotterdam Toronto

Dalian Bangkok São Paulo Curitiba Warsaw Ho Chi Minh City Qingdao Johannesburg Beijing Fuzhou Casablanca Bengaluru Athens Shenzhen Fortaleza Hong Kong Chicago Quito Phoenix Philadelphia Auckland Heidelberg Accra Seattle Mexico City Houston Chengdu Tel Aviv – Yafo Mumbai Guangzhou Austin Oslo Rio de Janeiro Dalian Bangkok São Paulo Curitiba Warsaw Ho Chi Minh City Qingdao Johannesburg Beijing Fuzhou Casablanca Bengaluru Athens Shenzhen Fortaleza Hong Kong Chicago Quito Phoenix Philadelphia Auckland Heidelberg Accra Seattle Mexico City Houston Chengdu Tel Aviv – Yafo Mumbai Guangzhou Austin Oslo Rio de Janeiro

Vancouver Bogotá Dar es Salaam Santiago Tshwane Amman Amsterdam Abidjan Seoul Dakar Lisbon Washington, DC New Orleans Copenhagen Addis Ababa Dhaka (North & South) Shanghai Miami Rome Nairobi Kuala Lumpur Durban (eThekwini) Singapore Stockholm San Francisco Hangzhou Guadalajara Los Angeles Jakarta Hanoi Lima Vancouver Bogotá Dar es Salaam Santiago Tshwane Amman Amsterdam Abidjan Seoul Dakar Lisbon Washington, DC New Orleans Copenhagen Addis Ababa Dhaka (North & South) Shanghai Miami Rome Nairobi Kuala Lumpur Durban (eThekwini) Singapore Stockholm San Francisco Hangzhou Guadalajara Los Angeles Jakarta Hanoi Lima