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

Auckland Rio de Janeiro Heidelberg Quezon City Zhenjiang Barcelona Mumbai Jakarta New Orleans Athens San Francisco Montréal Wuhan Seattle Warsaw Ekurhuleni Addis Ababa Accra Miami Copenhagen Salvador Paris Beijing Medellín Dubai Istanbul Mexico City Austin Nanjing Toronto Rotterdam Amsterdam Casablanca Auckland Rio de Janeiro Heidelberg Quezon City Zhenjiang Barcelona Mumbai Jakarta New Orleans Athens San Francisco Montréal Wuhan Seattle Warsaw Ekurhuleni Addis Ababa Accra Miami Copenhagen Salvador Paris Beijing Medellín Dubai Istanbul Mexico City Austin Nanjing Toronto Rotterdam Amsterdam Casablanca

Boston Santiago Lisbon Yokohama Lagos Seoul Sydney Quito Chennai Fuzhou Vancouver Houston Hanoi Shenzhen New York City São Paulo Hangzhou Tshwane Shanghai Portland Singapore Stockholm Dalian Dar es Salaam Delhi NCT Lima Oslo Guadalajara Buenos Aires Nairobi Bogotá Fortaleza Karachi Boston Santiago Lisbon Yokohama Lagos Seoul Sydney Quito Chennai Fuzhou Vancouver Houston Hanoi Shenzhen New York City São Paulo Hangzhou Tshwane Shanghai Portland Singapore Stockholm Dalian Dar es Salaam Delhi NCT Lima Oslo Guadalajara Buenos Aires Nairobi Bogotá Fortaleza Karachi

Bengaluru Amman Chicago Abidjan Philadelphia Qingdao Rome Curitiba Berlin Bangkok Melbourne Guangzhou Milan Phoenix London Washington, DC Ahmedabad Tel Aviv – Yafo Tokyo Hong Kong Ho Chi Minh City Madrid Kuala Lumpur Dhaka (North & South) Johannesburg Los Angeles Dakar Durban (eThekwini) Cape Town Chengdu Freetown Bengaluru Amman Chicago Abidjan Philadelphia Qingdao Rome Curitiba Berlin Bangkok Melbourne Guangzhou Milan Phoenix London Washington, DC Ahmedabad Tel Aviv – Yafo Tokyo Hong Kong Ho Chi Minh City Madrid Kuala Lumpur Dhaka (North & South) Johannesburg Los Angeles Dakar Durban (eThekwini) Cape Town Chengdu Freetown