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

Karachi Ekurhuleni Phoenix Freetown Paris Johannesburg Curitiba Jakarta Addis Ababa Warsaw Amman Santiago New York City Sydney Los Angeles Hanoi Washington, DC Philadelphia Seattle Tokyo Boston Dar es Salaam Rotterdam Barcelona Miami Salvador London Dakar Chennai Rio de Janeiro Singapore Tel Aviv – Yafo Mumbai Karachi Ekurhuleni Phoenix Freetown Paris Johannesburg Curitiba Jakarta Addis Ababa Warsaw Amman Santiago New York City Sydney Los Angeles Hanoi Washington, DC Philadelphia Seattle Tokyo Boston Dar es Salaam Rotterdam Barcelona Miami Salvador London Dakar Chennai Rio de Janeiro Singapore Tel Aviv – Yafo Mumbai

Montréal Portland Oslo Houston Casablanca Istanbul Rome Quezon City Ahmedabad Yokohama Guadalajara Bengaluru Amsterdam Ho Chi Minh City Delhi NCT Shanghai Auckland Quito Accra Mexico City Lisbon Madrid Beijing Abidjan Kuala Lumpur Tshwane Qingdao Bogotá Nanjing Milan Bangkok Guangzhou Dubai Montréal Portland Oslo Houston Casablanca Istanbul Rome Quezon City Ahmedabad Yokohama Guadalajara Bengaluru Amsterdam Ho Chi Minh City Delhi NCT Shanghai Auckland Quito Accra Mexico City Lisbon Madrid Beijing Abidjan Kuala Lumpur Tshwane Qingdao Bogotá Nanjing Milan Bangkok Guangzhou Dubai

Chicago Durban (eThekwini) São Paulo Athens Hong Kong Cape Town San Francisco Dalian Fortaleza Stockholm Nairobi Seoul Chengdu Copenhagen Austin Shenzhen Zhenjiang Melbourne Vancouver Dhaka (North & South) Hangzhou Fuzhou Lima Wuhan Heidelberg Buenos Aires Medellín New Orleans Toronto Lagos Berlin Chicago Durban (eThekwini) São Paulo Athens Hong Kong Cape Town San Francisco Dalian Fortaleza Stockholm Nairobi Seoul Chengdu Copenhagen Austin Shenzhen Zhenjiang Melbourne Vancouver Dhaka (North & South) Hangzhou Fuzhou Lima Wuhan Heidelberg Buenos Aires Medellín New Orleans Toronto Lagos Berlin