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

Tokyo Nairobi Vancouver Fuzhou Ahmedabad São Paulo Auckland Chicago Hong Kong Johannesburg Dar es Salaam Rome Philadelphia Berlin New Orleans Singapore Durban (eThekwini) Quito San Francisco Houston Madrid Fortaleza Seoul Washington, DC Mumbai Rio de Janeiro Lagos Freetown Austin Karachi Abidjan Medellín Tokyo Nairobi Vancouver Fuzhou Ahmedabad São Paulo Auckland Chicago Hong Kong Johannesburg Dar es Salaam Rome Philadelphia Berlin New Orleans Singapore Durban (eThekwini) Quito San Francisco Houston Madrid Fortaleza Seoul Washington, DC Mumbai Rio de Janeiro Lagos Freetown Austin Karachi Abidjan Medellín

Hangzhou Ekurhuleni Bangkok Delhi NCT Amman Portland Dhaka (North & South) Kuala Lumpur Amsterdam Melbourne Shanghai Warsaw Wuhan Toronto Jakarta Seattle Paris Copenhagen Lima Salvador Beijing Stockholm Sydney Athens Mexico City Quezon City Guangzhou Tel Aviv – Yafo Zhenjiang Bogotá Milan Los Angeles Hangzhou Ekurhuleni Bangkok Delhi NCT Amman Portland Dhaka (North & South) Kuala Lumpur Amsterdam Melbourne Shanghai Warsaw Wuhan Toronto Jakarta Seattle Paris Copenhagen Lima Salvador Beijing Stockholm Sydney Athens Mexico City Quezon City Guangzhou Tel Aviv – Yafo Zhenjiang Bogotá Milan Los Angeles

Bengaluru Chennai Yokohama Hanoi Accra Tshwane Boston Chengdu London Addis Ababa Phoenix Rotterdam Lisbon Curitiba Ho Chi Minh City Miami Dubai Istanbul Santiago Buenos Aires New York City Shenzhen Montréal Oslo Barcelona Heidelberg Cape Town Nanjing Guadalajara Qingdao Dakar Dalian Bengaluru Chennai Yokohama Hanoi Accra Tshwane Boston Chengdu London Addis Ababa Phoenix Rotterdam Lisbon Curitiba Ho Chi Minh City Miami Dubai Istanbul Santiago Buenos Aires New York City Shenzhen Montréal Oslo Barcelona Heidelberg Cape Town Nanjing Guadalajara Qingdao Dakar Dalian