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

Rotterdam Houston Yokohama Kuala Lumpur Wuhan Ho Chi Minh City Santiago Toronto Phoenix New York City Washington, DC Portland Cape Town Singapore San Francisco Ahmedabad Bangkok Chengdu Medellín Mexico City Buenos Aires Ekurhuleni Istanbul Heidelberg Shenzhen Abidjan Seattle Athens Dubai Barcelona Bogotá Guadalajara Berlin Rotterdam Houston Yokohama Kuala Lumpur Wuhan Ho Chi Minh City Santiago Toronto Phoenix New York City Washington, DC Portland Cape Town Singapore San Francisco Ahmedabad Bangkok Chengdu Medellín Mexico City Buenos Aires Ekurhuleni Istanbul Heidelberg Shenzhen Abidjan Seattle Athens Dubai Barcelona Bogotá Guadalajara Berlin

Freetown Lisbon Oslo Bengaluru Fortaleza Dar es Salaam Karachi Dalian Miami Seoul Melbourne Lagos Tokyo Hanoi Durban (eThekwini) Tshwane Copenhagen Shanghai Chicago Nanjing Zhenjiang Chennai Milan Fuzhou Paris Rome London Madrid Warsaw Delhi NCT Amsterdam Guangzhou Rio de Janeiro Freetown Lisbon Oslo Bengaluru Fortaleza Dar es Salaam Karachi Dalian Miami Seoul Melbourne Lagos Tokyo Hanoi Durban (eThekwini) Tshwane Copenhagen Shanghai Chicago Nanjing Zhenjiang Chennai Milan Fuzhou Paris Rome London Madrid Warsaw Delhi NCT Amsterdam Guangzhou Rio de Janeiro

Los Angeles Amman Lima Salvador Dhaka (North & South) Dakar Stockholm Nairobi Boston Vancouver Jakarta Montréal Curitiba Philadelphia Hangzhou Addis Ababa Beijing Mumbai New Orleans São Paulo Casablanca Sydney Auckland Tel Aviv – Yafo Johannesburg Hong Kong Austin Qingdao Accra Quito Quezon City Los Angeles Amman Lima Salvador Dhaka (North & South) Dakar Stockholm Nairobi Boston Vancouver Jakarta Montréal Curitiba Philadelphia Hangzhou Addis Ababa Beijing Mumbai New Orleans São Paulo Casablanca Sydney Auckland Tel Aviv – Yafo Johannesburg Hong Kong Austin Qingdao Accra Quito Quezon City