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

Amsterdam Rome Addis Ababa Lagos Boston Oslo Guadalajara Sydney Freetown Guangzhou Madrid Shanghai Hangzhou Bogotá Dakar Accra Casablanca Hanoi New Orleans Seoul Cape Town Tokyo Fuzhou Chicago Chengdu Yokohama Montréal London São Paulo Stockholm Dubai Milan Qingdao Amsterdam Rome Addis Ababa Lagos Boston Oslo Guadalajara Sydney Freetown Guangzhou Madrid Shanghai Hangzhou Bogotá Dakar Accra Casablanca Hanoi New Orleans Seoul Cape Town Tokyo Fuzhou Chicago Chengdu Yokohama Montréal London São Paulo Stockholm Dubai Milan Qingdao

Fortaleza Warsaw Istanbul Zhenjiang Amman Dar es Salaam Auckland Curitiba Los Angeles Lima Buenos Aires Tel Aviv – Yafo Salvador Philadelphia Copenhagen Chennai Kuala Lumpur Miami Abidjan New York City Hong Kong Berlin Toronto Durban (eThekwini) Seattle Washington, DC Tshwane Bengaluru Rio de Janeiro Quezon City Nairobi Jakarta Delhi NCT Fortaleza Warsaw Istanbul Zhenjiang Amman Dar es Salaam Auckland Curitiba Los Angeles Lima Buenos Aires Tel Aviv – Yafo Salvador Philadelphia Copenhagen Chennai Kuala Lumpur Miami Abidjan New York City Hong Kong Berlin Toronto Durban (eThekwini) Seattle Washington, DC Tshwane Bengaluru Rio de Janeiro Quezon City Nairobi Jakarta Delhi NCT

Phoenix Ekurhuleni Bangkok Houston Wuhan Medellín Heidelberg Barcelona Shenzhen Austin Melbourne Portland Nanjing Vancouver Ahmedabad Singapore Mumbai Mexico City Rotterdam Paris Karachi Johannesburg Quito Dhaka (North & South) Dalian Santiago San Francisco Ho Chi Minh City Beijing Lisbon Athens Phoenix Ekurhuleni Bangkok Houston Wuhan Medellín Heidelberg Barcelona Shenzhen Austin Melbourne Portland Nanjing Vancouver Ahmedabad Singapore Mumbai Mexico City Rotterdam Paris Karachi Johannesburg Quito Dhaka (North & South) Dalian Santiago San Francisco Ho Chi Minh City Beijing Lisbon Athens