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

São Paulo Amman Dubai Melbourne Montréal Athens Copenhagen Qingdao Freetown Toronto Delhi NCT Hanoi Seattle Shenzhen Beijing Istanbul Milan Durban (eThekwini) Casablanca San Francisco Johannesburg Tshwane Austin Karachi Kuala Lumpur Dalian Cape Town Fuzhou Fortaleza Rotterdam Tokyo Paris Philadelphia São Paulo Amman Dubai Melbourne Montréal Athens Copenhagen Qingdao Freetown Toronto Delhi NCT Hanoi Seattle Shenzhen Beijing Istanbul Milan Durban (eThekwini) Casablanca San Francisco Johannesburg Tshwane Austin Karachi Kuala Lumpur Dalian Cape Town Fuzhou Fortaleza Rotterdam Tokyo Paris Philadelphia

Warsaw Yokohama Curitiba Mexico City Sydney Nairobi Heidelberg Quezon City Boston New Orleans Washington, DC Bengaluru Phoenix Jakarta Buenos Aires Berlin Accra Houston Chicago Amsterdam Ahmedabad Dhaka (North & South) Lima Medellín Seoul Lisbon Singapore Wuhan Stockholm Portland Quito Barcelona Tel Aviv – Yafo Warsaw Yokohama Curitiba Mexico City Sydney Nairobi Heidelberg Quezon City Boston New Orleans Washington, DC Bengaluru Phoenix Jakarta Buenos Aires Berlin Accra Houston Chicago Amsterdam Ahmedabad Dhaka (North & South) Lima Medellín Seoul Lisbon Singapore Wuhan Stockholm Portland Quito Barcelona Tel Aviv – Yafo

Chengdu Mumbai Miami Dakar Santiago Addis Ababa Los Angeles Abidjan Madrid Chennai Dar es Salaam Shanghai Ho Chi Minh City Hangzhou Rome Vancouver Hong Kong Oslo Zhenjiang Bogotá Nanjing Ekurhuleni London Lagos Guadalajara Guangzhou New York City Salvador Bangkok Rio de Janeiro Auckland Chengdu Mumbai Miami Dakar Santiago Addis Ababa Los Angeles Abidjan Madrid Chennai Dar es Salaam Shanghai Ho Chi Minh City Hangzhou Rome Vancouver Hong Kong Oslo Zhenjiang Bogotá Nanjing Ekurhuleni London Lagos Guadalajara Guangzhou New York City Salvador Bangkok Rio de Janeiro Auckland