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

Warsaw New York City San Francisco Paris Vancouver Seoul Hangzhou Houston Sydney Tshwane Freetown Johannesburg Rotterdam Lagos Nanjing Nairobi Singapore Mexico City Karachi Berlin Abidjan Dhaka (North & South) Dalian Yokohama Medellín Montréal Dubai Casablanca Athens Lisbon Chennai Bangkok Toronto Warsaw New York City San Francisco Paris Vancouver Seoul Hangzhou Houston Sydney Tshwane Freetown Johannesburg Rotterdam Lagos Nanjing Nairobi Singapore Mexico City Karachi Berlin Abidjan Dhaka (North & South) Dalian Yokohama Medellín Montréal Dubai Casablanca Athens Lisbon Chennai Bangkok Toronto

Austin Durban (eThekwini) Beijing Ekurhuleni Jakarta Accra Wuhan Phoenix Fuzhou Boston Milan Addis Ababa Heidelberg Amman Delhi NCT Kuala Lumpur Curitiba Salvador Santiago Rome Hong Kong Quezon City Buenos Aires Tel Aviv – Yafo Mumbai Philadelphia Shanghai Tokyo Seattle Rio de Janeiro Miami Cape Town Auckland Austin Durban (eThekwini) Beijing Ekurhuleni Jakarta Accra Wuhan Phoenix Fuzhou Boston Milan Addis Ababa Heidelberg Amman Delhi NCT Kuala Lumpur Curitiba Salvador Santiago Rome Hong Kong Quezon City Buenos Aires Tel Aviv – Yafo Mumbai Philadelphia Shanghai Tokyo Seattle Rio de Janeiro Miami Cape Town Auckland

London Amsterdam Barcelona Chengdu Portland Madrid Oslo Qingdao Bogotá São Paulo Stockholm Quito Copenhagen Dakar Chicago Ahmedabad Los Angeles Guangzhou Istanbul Ho Chi Minh City Dar es Salaam Melbourne Shenzhen Fortaleza Washington, DC Guadalajara Lima New Orleans Hanoi Zhenjiang Bengaluru London Amsterdam Barcelona Chengdu Portland Madrid Oslo Qingdao Bogotá São Paulo Stockholm Quito Copenhagen Dakar Chicago Ahmedabad Los Angeles Guangzhou Istanbul Ho Chi Minh City Dar es Salaam Melbourne Shenzhen Fortaleza Washington, DC Guadalajara Lima New Orleans Hanoi Zhenjiang Bengaluru