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

Singapore Durban (eThekwini) Nairobi Toronto Rio de Janeiro Fortaleza Montréal Copenhagen Dubai Paris Buenos Aires Houston Tokyo Philadelphia Ekurhuleni Salvador San Francisco Lisbon New York City Medellín Yokohama Lagos Dhaka (North & South) Rome Istanbul Chengdu London Bangkok Zhenjiang Qingdao Nanjing Lima Guangzhou Singapore Durban (eThekwini) Nairobi Toronto Rio de Janeiro Fortaleza Montréal Copenhagen Dubai Paris Buenos Aires Houston Tokyo Philadelphia Ekurhuleni Salvador San Francisco Lisbon New York City Medellín Yokohama Lagos Dhaka (North & South) Rome Istanbul Chengdu London Bangkok Zhenjiang Qingdao Nanjing Lima Guangzhou

Guadalajara Milan Miami Dar es Salaam Seoul Tel Aviv – Yafo São Paulo Tshwane Chennai Warsaw Chicago Dakar Beijing Bengaluru Boston Madrid Ho Chi Minh City Rotterdam Curitiba Los Angeles Melbourne Hangzhou Amman Amsterdam Austin Jakarta Accra Seattle Abidjan Sydney Casablanca Delhi NCT Oslo Guadalajara Milan Miami Dar es Salaam Seoul Tel Aviv – Yafo São Paulo Tshwane Chennai Warsaw Chicago Dakar Beijing Bengaluru Boston Madrid Ho Chi Minh City Rotterdam Curitiba Los Angeles Melbourne Hangzhou Amman Amsterdam Austin Jakarta Accra Seattle Abidjan Sydney Casablanca Delhi NCT Oslo

Quito Bogotá Dalian Santiago Fuzhou New Orleans Karachi Barcelona Heidelberg Auckland Addis Ababa Shenzhen Johannesburg Cape Town Athens Vancouver Portland Phoenix Kuala Lumpur Freetown Mumbai Hanoi Stockholm Wuhan Mexico City Shanghai Quezon City Ahmedabad Washington, DC Berlin Hong Kong Quito Bogotá Dalian Santiago Fuzhou New Orleans Karachi Barcelona Heidelberg Auckland Addis Ababa Shenzhen Johannesburg Cape Town Athens Vancouver Portland Phoenix Kuala Lumpur Freetown Mumbai Hanoi Stockholm Wuhan Mexico City Shanghai Quezon City Ahmedabad Washington, DC Berlin Hong Kong