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

Rio de Janeiro Freetown Salvador Guadalajara Copenhagen Cape Town Melbourne Ahmedabad Sydney Auckland Portland Rome Dar es Salaam Qingdao Bangkok Chennai Phoenix Athens Wuhan Philadelphia New Orleans Hangzhou Bogotá Milan Tel Aviv – Yafo Lagos Shanghai Buenos Aires Mexico City Dalian Singapore Houston Jakarta Rio de Janeiro Freetown Salvador Guadalajara Copenhagen Cape Town Melbourne Ahmedabad Sydney Auckland Portland Rome Dar es Salaam Qingdao Bangkok Chennai Phoenix Athens Wuhan Philadelphia New Orleans Hangzhou Bogotá Milan Tel Aviv – Yafo Lagos Shanghai Buenos Aires Mexico City Dalian Singapore Houston Jakarta

Yokohama Zhenjiang San Francisco Madrid Guangzhou Rotterdam Barcelona Warsaw Amman Vancouver Heidelberg Oslo Addis Ababa New York City Chicago Shenzhen Mumbai Toronto Tshwane Johannesburg Paris Quezon City Hong Kong Medellín Santiago Lima Hanoi Bengaluru Seoul Curitiba Dakar Amsterdam Beijing Yokohama Zhenjiang San Francisco Madrid Guangzhou Rotterdam Barcelona Warsaw Amman Vancouver Heidelberg Oslo Addis Ababa New York City Chicago Shenzhen Mumbai Toronto Tshwane Johannesburg Paris Quezon City Hong Kong Medellín Santiago Lima Hanoi Bengaluru Seoul Curitiba Dakar Amsterdam Beijing

Abidjan Chengdu London Berlin Dhaka (North & South) Fortaleza Kuala Lumpur Durban (eThekwini) São Paulo Miami Dubai Los Angeles Nairobi Boston Ho Chi Minh City Seattle Fuzhou Stockholm Delhi NCT Casablanca Karachi Austin Ekurhuleni Quito Accra Montréal Lisbon Istanbul Tokyo Washington, DC Nanjing Abidjan Chengdu London Berlin Dhaka (North & South) Fortaleza Kuala Lumpur Durban (eThekwini) São Paulo Miami Dubai Los Angeles Nairobi Boston Ho Chi Minh City Seattle Fuzhou Stockholm Delhi NCT Casablanca Karachi Austin Ekurhuleni Quito Accra Montréal Lisbon Istanbul Tokyo Washington, DC Nanjing