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

Rome Fuzhou Paris Rotterdam Chennai Freetown Karachi Dhaka (North & South) Lagos Dubai Hong Kong Seattle Dakar Ho Chi Minh City Delhi NCT Ekurhuleni Bangkok Washington, DC Casablanca Guadalajara Melbourne Shenzhen Houston Nanjing Medellín Shanghai Copenhagen New Orleans Lima Milan Fortaleza Dar es Salaam Hangzhou Rome Fuzhou Paris Rotterdam Chennai Freetown Karachi Dhaka (North & South) Lagos Dubai Hong Kong Seattle Dakar Ho Chi Minh City Delhi NCT Ekurhuleni Bangkok Washington, DC Casablanca Guadalajara Melbourne Shenzhen Houston Nanjing Medellín Shanghai Copenhagen New Orleans Lima Milan Fortaleza Dar es Salaam Hangzhou

Bengaluru Los Angeles Dalian Nairobi Bogotá Montréal Oslo Qingdao Phoenix Athens Lisbon Mumbai Zhenjiang Chicago Auckland Rio de Janeiro Buenos Aires Stockholm Santiago Tshwane Abidjan Salvador Quito Kuala Lumpur Hanoi Durban (eThekwini) Cape Town Guangzhou Tel Aviv – Yafo São Paulo Jakarta Philadelphia Beijing Bengaluru Los Angeles Dalian Nairobi Bogotá Montréal Oslo Qingdao Phoenix Athens Lisbon Mumbai Zhenjiang Chicago Auckland Rio de Janeiro Buenos Aires Stockholm Santiago Tshwane Abidjan Salvador Quito Kuala Lumpur Hanoi Durban (eThekwini) Cape Town Guangzhou Tel Aviv – Yafo São Paulo Jakarta Philadelphia Beijing

Wuhan Heidelberg San Francisco Yokohama Mexico City Tokyo Istanbul Amsterdam New York City Curitiba Addis Ababa Berlin Warsaw Amman Toronto Chengdu Miami Austin Madrid Barcelona Johannesburg Seoul Portland Singapore Accra Sydney Quezon City Ahmedabad Boston London Vancouver Wuhan Heidelberg San Francisco Yokohama Mexico City Tokyo Istanbul Amsterdam New York City Curitiba Addis Ababa Berlin Warsaw Amman Toronto Chengdu Miami Austin Madrid Barcelona Johannesburg Seoul Portland Singapore Accra Sydney Quezon City Ahmedabad Boston London Vancouver