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

Houston Lima Dubai San Francisco Beijing Bangkok Singapore Jakarta Dar es Salaam Hanoi Athens Stockholm Berlin Santiago Chengdu Guadalajara Phoenix Seoul Delhi NCT Shanghai Paris Oslo Bengaluru Fuzhou Austin Madrid Accra Barcelona Kolkata Mumbai Yokohama Tshwane Houston Lima Dubai San Francisco Beijing Bangkok Singapore Jakarta Dar es Salaam Hanoi Athens Stockholm Berlin Santiago Chengdu Guadalajara Phoenix Seoul Delhi NCT Shanghai Paris Oslo Bengaluru Fuzhou Austin Madrid Accra Barcelona Kolkata Mumbai Yokohama Tshwane

Medellín Philadelphia Curitiba Auckland Abidjan Rio de Janeiro Vancouver Amman Salvador Cape Town Nanjing Wuhan Johannesburg Ho Chi Minh City Freetown Washington, DC New Orleans Lisbon Rome Heidelberg São Paulo Montréal Karachi Los Angeles Quito Addis Ababa Guangzhou Tel Aviv – Yafo Bogotá Zhenjiang Durban (eThekwini) Dakar Medellín Philadelphia Curitiba Auckland Abidjan Rio de Janeiro Vancouver Amman Salvador Cape Town Nanjing Wuhan Johannesburg Ho Chi Minh City Freetown Washington, DC New Orleans Lisbon Rome Heidelberg São Paulo Montréal Karachi Los Angeles Quito Addis Ababa Guangzhou Tel Aviv – Yafo Bogotá Zhenjiang Durban (eThekwini) Dakar

Buenos Aires Rotterdam London Milan Melbourne Chicago Nairobi Quezon City Copenhagen Chennai Dhaka (North & South) Ekurhuleni Dalian Lagos Shenzhen Qingdao Warsaw Hong Kong Ahmedabad Sydney Istanbul Tokyo Miami Portland Mexico City Amsterdam New York City Toronto Kuala Lumpur Boston Hangzhou Seattle Buenos Aires Rotterdam London Milan Melbourne Chicago Nairobi Quezon City Copenhagen Chennai Dhaka (North & South) Ekurhuleni Dalian Lagos Shenzhen Qingdao Warsaw Hong Kong Ahmedabad Sydney Istanbul Tokyo Miami Portland Mexico City Amsterdam New York City Toronto Kuala Lumpur Boston Hangzhou Seattle