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

Shanghai Sydney Copenhagen Nairobi Fuzhou Stockholm Rome Houston Auckland Bengaluru Ekurhuleni Milan Buenos Aires Addis Ababa New Orleans Istanbul Mexico City Singapore Santiago Tokyo Chennai Fortaleza Rotterdam Lima Amsterdam Cape Town Vancouver Paris Chengdu Boston Miami Abidjan Qingdao Shanghai Sydney Copenhagen Nairobi Fuzhou Stockholm Rome Houston Auckland Bengaluru Ekurhuleni Milan Buenos Aires Addis Ababa New Orleans Istanbul Mexico City Singapore Santiago Tokyo Chennai Fortaleza Rotterdam Lima Amsterdam Cape Town Vancouver Paris Chengdu Boston Miami Abidjan Qingdao

Hong Kong Austin London Medellín Seattle Guadalajara Toronto Madrid Delhi NCT Wuhan Oslo Melbourne Shenzhen Los Angeles Karachi Dubai Berlin Bogotá Bangkok Montréal New York City Seoul Jakarta Philadelphia Durban (eThekwini) Quito Portland Barcelona Tel Aviv – Yafo Curitiba Mumbai Phoenix Tshwane Hong Kong Austin London Medellín Seattle Guadalajara Toronto Madrid Delhi NCT Wuhan Oslo Melbourne Shenzhen Los Angeles Karachi Dubai Berlin Bogotá Bangkok Montréal New York City Seoul Jakarta Philadelphia Durban (eThekwini) Quito Portland Barcelona Tel Aviv – Yafo Curitiba Mumbai Phoenix Tshwane

Ho Chi Minh City Accra Chicago Lisbon Dar es Salaam Quezon City Ahmedabad Zhenjiang Dhaka (North & South) Dalian Amman Rio de Janeiro Hanoi Guangzhou Beijing Dakar São Paulo Washington, DC Nanjing Kuala Lumpur Athens Salvador Lagos Johannesburg Freetown Yokohama San Francisco Warsaw Casablanca Heidelberg Hangzhou Ho Chi Minh City Accra Chicago Lisbon Dar es Salaam Quezon City Ahmedabad Zhenjiang Dhaka (North & South) Dalian Amman Rio de Janeiro Hanoi Guangzhou Beijing Dakar São Paulo Washington, DC Nanjing Kuala Lumpur Athens Salvador Lagos Johannesburg Freetown Yokohama San Francisco Warsaw Casablanca Heidelberg Hangzhou