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

Chennai Beijing Stockholm Nairobi Heidelberg Barcelona Amman Yokohama Phoenix Ahmedabad Fortaleza Cape Town Washington, DC Guadalajara Athens Dubai Hanoi Dar es Salaam Lisbon Wuhan Melbourne Montréal Mexico City New Orleans Qingdao Los Angeles Durban (eThekwini) São Paulo Oslo Casablanca Accra Portland Johannesburg Chennai Beijing Stockholm Nairobi Heidelberg Barcelona Amman Yokohama Phoenix Ahmedabad Fortaleza Cape Town Washington, DC Guadalajara Athens Dubai Hanoi Dar es Salaam Lisbon Wuhan Melbourne Montréal Mexico City New Orleans Qingdao Los Angeles Durban (eThekwini) São Paulo Oslo Casablanca Accra Portland Johannesburg

Shanghai Seattle Lagos Singapore Sydney Santiago Milan Nanjing Copenhagen Karachi Quito Hangzhou Bengaluru Ekurhuleni New York City Salvador Miami Dakar Zhenjiang Boston London Freetown Bangkok Medellín Shenzhen Warsaw Guangzhou Houston Hong Kong Rome Auckland Tshwane Mumbai Shanghai Seattle Lagos Singapore Sydney Santiago Milan Nanjing Copenhagen Karachi Quito Hangzhou Bengaluru Ekurhuleni New York City Salvador Miami Dakar Zhenjiang Boston London Freetown Bangkok Medellín Shenzhen Warsaw Guangzhou Houston Hong Kong Rome Auckland Tshwane Mumbai

Istanbul Dalian Fuzhou Austin Seoul Delhi NCT Quezon City Tokyo Chengdu Madrid Toronto Abidjan Berlin Curitiba Chicago Ho Chi Minh City Tel Aviv – Yafo Rotterdam Jakarta Vancouver Buenos Aires Addis Ababa Dhaka (North & South) Rio de Janeiro Philadelphia Bogotá San Francisco Paris Kuala Lumpur Lima Amsterdam Istanbul Dalian Fuzhou Austin Seoul Delhi NCT Quezon City Tokyo Chengdu Madrid Toronto Abidjan Berlin Curitiba Chicago Ho Chi Minh City Tel Aviv – Yafo Rotterdam Jakarta Vancouver Buenos Aires Addis Ababa Dhaka (North & South) Rio de Janeiro Philadelphia Bogotá San Francisco Paris Kuala Lumpur Lima Amsterdam