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

Singapore Freetown Guadalajara London Ho Chi Minh City Oslo Santiago Madrid Washington, DC Dalian Casablanca Dakar Medellín Berlin Seoul Rome Bogotá Bangkok Phoenix Yokohama Durban (eThekwini) Fortaleza Shanghai Sydney Athens Johannesburg Quito Cape Town Copenhagen Melbourne Lisbon Quezon City Istanbul Singapore Freetown Guadalajara London Ho Chi Minh City Oslo Santiago Madrid Washington, DC Dalian Casablanca Dakar Medellín Berlin Seoul Rome Bogotá Bangkok Phoenix Yokohama Durban (eThekwini) Fortaleza Shanghai Sydney Athens Johannesburg Quito Cape Town Copenhagen Melbourne Lisbon Quezon City Istanbul

São Paulo Stockholm Mumbai Los Angeles Boston Nanjing Zhenjiang Dubai Chennai Chicago Bengaluru Shenzhen Jakarta Philadelphia Qingdao Fuzhou Chengdu Houston San Francisco Mexico City Curitiba Addis Ababa Guangzhou Vancouver Abidjan New Orleans Milan Hanoi Lima Beijing Dhaka (North & South) Nairobi Toronto São Paulo Stockholm Mumbai Los Angeles Boston Nanjing Zhenjiang Dubai Chennai Chicago Bengaluru Shenzhen Jakarta Philadelphia Qingdao Fuzhou Chengdu Houston San Francisco Mexico City Curitiba Addis Ababa Guangzhou Vancouver Abidjan New Orleans Milan Hanoi Lima Beijing Dhaka (North & South) Nairobi Toronto

Warsaw Dar es Salaam New York City Tshwane Portland Amman Amsterdam Kuala Lumpur Montréal Seattle Buenos Aires Tokyo Rio de Janeiro Karachi Miami Paris Ahmedabad Heidelberg Hong Kong Austin Ekurhuleni Barcelona Lagos Accra Tel Aviv – Yafo Hangzhou Wuhan Rotterdam Auckland Salvador Delhi NCT Warsaw Dar es Salaam New York City Tshwane Portland Amman Amsterdam Kuala Lumpur Montréal Seattle Buenos Aires Tokyo Rio de Janeiro Karachi Miami Paris Ahmedabad Heidelberg Hong Kong Austin Ekurhuleni Barcelona Lagos Accra Tel Aviv – Yafo Hangzhou Wuhan Rotterdam Auckland Salvador Delhi NCT