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

Melbourne São Paulo Rio de Janeiro Curitiba Toronto Ekurhuleni Bogotá Karachi Barcelona Heidelberg Singapore Rome Johannesburg Delhi NCT Chicago Philadelphia Guangzhou Houston Oslo Istanbul Los Angeles Tshwane Seattle Paris Copenhagen Bengaluru Milan Phoenix Fortaleza Madrid Dubai Auckland Rotterdam Melbourne São Paulo Rio de Janeiro Curitiba Toronto Ekurhuleni Bogotá Karachi Barcelona Heidelberg Singapore Rome Johannesburg Delhi NCT Chicago Philadelphia Guangzhou Houston Oslo Istanbul Los Angeles Tshwane Seattle Paris Copenhagen Bengaluru Milan Phoenix Fortaleza Madrid Dubai Auckland Rotterdam

Nairobi Bangkok Berlin Addis Ababa Abidjan Miami Montréal New Orleans San Francisco Medellín Amman Boston Portland Lima Athens Salvador Hangzhou Dhaka (North & South) Austin Ho Chi Minh City Zhenjiang Tel Aviv – Yafo Kuala Lumpur Quito Beijing Mexico City Washington, DC Dar es Salaam Accra Nanjing Dalian Jakarta Shenzhen Nairobi Bangkok Berlin Addis Ababa Abidjan Miami Montréal New Orleans San Francisco Medellín Amman Boston Portland Lima Athens Salvador Hangzhou Dhaka (North & South) Austin Ho Chi Minh City Zhenjiang Tel Aviv – Yafo Kuala Lumpur Quito Beijing Mexico City Washington, DC Dar es Salaam Accra Nanjing Dalian Jakarta Shenzhen

Warsaw Amsterdam Yokohama Casablanca Vancouver Sydney Santiago Mumbai Wuhan Hanoi Durban (eThekwini) Shanghai London Hong Kong Dakar Buenos Aires Cape Town Ahmedabad New York City Lagos Lisbon Fuzhou Qingdao Guadalajara Quezon City Chengdu Stockholm Chennai Tokyo Seoul Freetown Warsaw Amsterdam Yokohama Casablanca Vancouver Sydney Santiago Mumbai Wuhan Hanoi Durban (eThekwini) Shanghai London Hong Kong Dakar Buenos Aires Cape Town Ahmedabad New York City Lagos Lisbon Fuzhou Qingdao Guadalajara Quezon City Chengdu Stockholm Chennai Tokyo Seoul Freetown