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

Heidelberg Fortaleza Kuala Lumpur Tshwane Barcelona Chicago Santiago Milan Wuhan Miami Washington, DC Addis Ababa Hong Kong Dakar Paris Accra Stockholm Dar es Salaam Fuzhou Rome Nanjing Tel Aviv – Yafo Lisbon Quito Tokyo Shenzhen Melbourne Bangkok Delhi NCT Casablanca Lima Dhaka (North & South) Amman Heidelberg Fortaleza Kuala Lumpur Tshwane Barcelona Chicago Santiago Milan Wuhan Miami Washington, DC Addis Ababa Hong Kong Dakar Paris Accra Stockholm Dar es Salaam Fuzhou Rome Nanjing Tel Aviv – Yafo Lisbon Quito Tokyo Shenzhen Melbourne Bangkok Delhi NCT Casablanca Lima Dhaka (North & South) Amman

Zhenjiang Buenos Aires Bengaluru Toronto Cape Town Guangzhou Amsterdam Montréal Freetown Austin Mumbai Shanghai Guadalajara Medellín Rio de Janeiro Auckland São Paulo Vancouver Portland Jakarta Hangzhou Ahmedabad Nairobi Istanbul Abidjan Sydney Beijing Los Angeles Lagos Johannesburg Madrid Chennai Philadelphia Zhenjiang Buenos Aires Bengaluru Toronto Cape Town Guangzhou Amsterdam Montréal Freetown Austin Mumbai Shanghai Guadalajara Medellín Rio de Janeiro Auckland São Paulo Vancouver Portland Jakarta Hangzhou Ahmedabad Nairobi Istanbul Abidjan Sydney Beijing Los Angeles Lagos Johannesburg Madrid Chennai Philadelphia

Dalian Seattle Boston Durban (eThekwini) New York City Karachi Phoenix Ekurhuleni Yokohama Salvador Singapore Warsaw Oslo Bogotá Berlin Ho Chi Minh City Qingdao Chengdu Athens Houston New Orleans Rotterdam Curitiba Quezon City Seoul Dubai Mexico City London Hanoi Copenhagen San Francisco Dalian Seattle Boston Durban (eThekwini) New York City Karachi Phoenix Ekurhuleni Yokohama Salvador Singapore Warsaw Oslo Bogotá Berlin Ho Chi Minh City Qingdao Chengdu Athens Houston New Orleans Rotterdam Curitiba Quezon City Seoul Dubai Mexico City London Hanoi Copenhagen San Francisco