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

Dar es Salaam Portland Quezon City Lima New Orleans Seattle Milan Sydney Tshwane Karachi Zhenjiang Nanjing Istanbul Ho Chi Minh City Guadalajara Chengdu Hangzhou Yokohama Fuzhou Athens Paris Medellín Heidelberg San Francisco New York City Montréal Miami Amman Addis Ababa Oslo Abidjan Shanghai Dar es Salaam Portland Quezon City Lima New Orleans Seattle Milan Sydney Tshwane Karachi Zhenjiang Nanjing Istanbul Ho Chi Minh City Guadalajara Chengdu Hangzhou Yokohama Fuzhou Athens Paris Medellín Heidelberg San Francisco New York City Montréal Miami Amman Addis Ababa Oslo Abidjan Shanghai

London Austin Rotterdam Rome Lagos Amsterdam Buenos Aires Chicago Shenzhen Dalian Durban (eThekwini) Hanoi Mumbai Lisbon Quito Toronto Stockholm Melbourne Tel Aviv – Yafo Singapore Houston Ahmedabad Auckland Accra Freetown Dubai São Paulo Berlin Guangzhou Los Angeles Wuhan Bangkok London Austin Rotterdam Rome Lagos Amsterdam Buenos Aires Chicago Shenzhen Dalian Durban (eThekwini) Hanoi Mumbai Lisbon Quito Toronto Stockholm Melbourne Tel Aviv – Yafo Singapore Houston Ahmedabad Auckland Accra Freetown Dubai São Paulo Berlin Guangzhou Los Angeles Wuhan Bangkok

Bogotá Boston Bengaluru Delhi NCT Kolkata Curitiba Dakar Salvador Philadelphia Kuala Lumpur Hong Kong Barcelona Copenhagen Warsaw Santiago Seoul Beijing Rio de Janeiro Ekurhuleni Tokyo Cape Town Nairobi Dhaka (North & South) Jakarta Madrid Vancouver Johannesburg Chennai Phoenix Qingdao Mexico City Washington, DC Bogotá Boston Bengaluru Delhi NCT Kolkata Curitiba Dakar Salvador Philadelphia Kuala Lumpur Hong Kong Barcelona Copenhagen Warsaw Santiago Seoul Beijing Rio de Janeiro Ekurhuleni Tokyo Cape Town Nairobi Dhaka (North & South) Jakarta Madrid Vancouver Johannesburg Chennai Phoenix Qingdao Mexico City Washington, DC