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

Tokyo Shanghai Athens Santiago Ho Chi Minh City Barcelona Johannesburg Delhi NCT Guangzhou Singapore Bogotá Nairobi Kuala Lumpur Karachi Paris Vancouver Dhaka (North & South) Bengaluru New York City Boston São Paulo Montréal Toronto Rio de Janeiro Shenzhen Portland Tshwane Wuhan Curitiba Buenos Aires Auckland Dalian Tokyo Shanghai Athens Santiago Ho Chi Minh City Barcelona Johannesburg Delhi NCT Guangzhou Singapore Bogotá Nairobi Kuala Lumpur Karachi Paris Vancouver Dhaka (North & South) Bengaluru New York City Boston São Paulo Montréal Toronto Rio de Janeiro Shenzhen Portland Tshwane Wuhan Curitiba Buenos Aires Auckland Dalian

Melbourne Rotterdam Ahmedabad Dakar Guadalajara Qingdao Quezon City Chengdu Chennai Seattle San Francisco Berlin Milan Heidelberg Accra Hanoi Freetown Dubai Durban (eThekwini) Ekurhuleni Houston Miami Hangzhou Stockholm Lima Warsaw Mumbai Lisbon Jakarta Beijing Chicago Hong Kong Melbourne Rotterdam Ahmedabad Dakar Guadalajara Qingdao Quezon City Chengdu Chennai Seattle San Francisco Berlin Milan Heidelberg Accra Hanoi Freetown Dubai Durban (eThekwini) Ekurhuleni Houston Miami Hangzhou Stockholm Lima Warsaw Mumbai Lisbon Jakarta Beijing Chicago Hong Kong

Mexico City Austin Oslo Sydney Lagos Cape Town Washington, DC Salvador Fortaleza New Orleans Zhenjiang Nanjing Tel Aviv – Yafo London Seoul Philadelphia Bangkok Copenhagen Madrid Fuzhou Abidjan Quito Amman Istanbul Rome Addis Ababa Los Angeles Yokohama Phoenix Amsterdam Medellín Dar es Salaam Mexico City Austin Oslo Sydney Lagos Cape Town Washington, DC Salvador Fortaleza New Orleans Zhenjiang Nanjing Tel Aviv – Yafo London Seoul Philadelphia Bangkok Copenhagen Madrid Fuzhou Abidjan Quito Amman Istanbul Rome Addis Ababa Los Angeles Yokohama Phoenix Amsterdam Medellín Dar es Salaam