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

Freetown São Paulo Lima Mexico City Amman Delhi NCT Los Angeles Rio de Janeiro Chengdu Quito Austin Montréal Qingdao Fortaleza Tokyo Milan Bangkok Hangzhou Beijing Vancouver New York City Sydney Oslo Istanbul Hanoi Seattle Buenos Aires Auckland Curitiba Medellín Dar es Salaam Seoul Hong Kong Freetown São Paulo Lima Mexico City Amman Delhi NCT Los Angeles Rio de Janeiro Chengdu Quito Austin Montréal Qingdao Fortaleza Tokyo Milan Bangkok Hangzhou Beijing Vancouver New York City Sydney Oslo Istanbul Hanoi Seattle Buenos Aires Auckland Curitiba Medellín Dar es Salaam Seoul Hong Kong

Houston Guangzhou Bengaluru Dalian Stockholm Karachi Durban (eThekwini) Tel Aviv – Yafo Ekurhuleni Fuzhou Rome Berlin Miami Guadalajara Kuala Lumpur Copenhagen Athens Cape Town Toronto Lagos Bogotá Accra Addis Ababa Dubai Rotterdam Quezon City Chicago Shanghai Yokohama Lisbon Casablanca Shenzhen Melbourne Houston Guangzhou Bengaluru Dalian Stockholm Karachi Durban (eThekwini) Tel Aviv – Yafo Ekurhuleni Fuzhou Rome Berlin Miami Guadalajara Kuala Lumpur Copenhagen Athens Cape Town Toronto Lagos Bogotá Accra Addis Ababa Dubai Rotterdam Quezon City Chicago Shanghai Yokohama Lisbon Casablanca Shenzhen Melbourne

Philadelphia Salvador Dakar Barcelona Abidjan Warsaw Jakarta Singapore Dhaka (North & South) Nanjing Washington, DC Zhenjiang New Orleans Ahmedabad Chennai Amsterdam Tshwane Portland Madrid Ho Chi Minh City Wuhan San Francisco Mumbai Phoenix Boston Nairobi Paris Heidelberg Santiago Johannesburg London Philadelphia Salvador Dakar Barcelona Abidjan Warsaw Jakarta Singapore Dhaka (North & South) Nanjing Washington, DC Zhenjiang New Orleans Ahmedabad Chennai Amsterdam Tshwane Portland Madrid Ho Chi Minh City Wuhan San Francisco Mumbai Phoenix Boston Nairobi Paris Heidelberg Santiago Johannesburg London