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

Durban (eThekwini) Wuhan Tel Aviv – Yafo London Hangzhou Bengaluru Hong Kong Chicago Istanbul Paris Dar es Salaam Washington, DC San Francisco Delhi NCT Shanghai Mumbai Addis Ababa Beijing Guadalajara Hanoi Nairobi Madrid Dalian Santiago Dubai Ho Chi Minh City Portland Qingdao Chengdu Heidelberg Bogotá New Orleans Durban (eThekwini) Wuhan Tel Aviv – Yafo London Hangzhou Bengaluru Hong Kong Chicago Istanbul Paris Dar es Salaam Washington, DC San Francisco Delhi NCT Shanghai Mumbai Addis Ababa Beijing Guadalajara Hanoi Nairobi Madrid Dalian Santiago Dubai Ho Chi Minh City Portland Qingdao Chengdu Heidelberg Bogotá New Orleans

Fuzhou Freetown Quito Seoul Boston Melbourne Singapore Bangkok Medellín Rotterdam Lima Amman Austin Berlin Jakarta Rome Cape Town Chennai Guangzhou Lagos Zhenjiang Amsterdam Rio de Janeiro Buenos Aires Montréal Athens Quezon City Shenzhen Stockholm Toronto Johannesburg Accra Fuzhou Freetown Quito Seoul Boston Melbourne Singapore Bangkok Medellín Rotterdam Lima Amman Austin Berlin Jakarta Rome Cape Town Chennai Guangzhou Lagos Zhenjiang Amsterdam Rio de Janeiro Buenos Aires Montréal Athens Quezon City Shenzhen Stockholm Toronto Johannesburg Accra

Yokohama Mexico City Phoenix Seattle Warsaw Tshwane Los Angeles Nanjing Dakar Curitiba New York City Ahmedabad Karachi Copenhagen Dhaka (North & South) Lisbon Salvador Milan Houston Auckland Abidjan Barcelona Miami Kuala Lumpur Oslo Philadelphia Sydney Ekurhuleni São Paulo Vancouver Tokyo Kolkata Yokohama Mexico City Phoenix Seattle Warsaw Tshwane Los Angeles Nanjing Dakar Curitiba New York City Ahmedabad Karachi Copenhagen Dhaka (North & South) Lisbon Salvador Milan Houston Auckland Abidjan Barcelona Miami Kuala Lumpur Oslo Philadelphia Sydney Ekurhuleni São Paulo Vancouver Tokyo Kolkata