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

Abidjan Guangzhou Washington, DC Delhi NCT Rotterdam Amman Freetown Rio de Janeiro Paris Nairobi Karachi Johannesburg Medellín Tel Aviv – Yafo Austin Casablanca Chennai Chengdu Yokohama São Paulo Mumbai Lima Vancouver Portland Barcelona Nanjing Buenos Aires Addis Ababa Warsaw Stockholm Hanoi Fuzhou Kuala Lumpur Abidjan Guangzhou Washington, DC Delhi NCT Rotterdam Amman Freetown Rio de Janeiro Paris Nairobi Karachi Johannesburg Medellín Tel Aviv – Yafo Austin Casablanca Chennai Chengdu Yokohama São Paulo Mumbai Lima Vancouver Portland Barcelona Nanjing Buenos Aires Addis Ababa Warsaw Stockholm Hanoi Fuzhou Kuala Lumpur

Ekurhuleni Bogotá Dalian Istanbul Zhenjiang Shenzhen Rome Seattle Berlin Quito Dubai Seoul Accra London Beijing Dhaka (North & South) Melbourne Copenhagen Toronto Qingdao Hangzhou Curitiba Durban (eThekwini) Tokyo Philadelphia Guadalajara Boston Phoenix Milan Dar es Salaam Cape Town Shanghai San Francisco Ekurhuleni Bogotá Dalian Istanbul Zhenjiang Shenzhen Rome Seattle Berlin Quito Dubai Seoul Accra London Beijing Dhaka (North & South) Melbourne Copenhagen Toronto Qingdao Hangzhou Curitiba Durban (eThekwini) Tokyo Philadelphia Guadalajara Boston Phoenix Milan Dar es Salaam Cape Town Shanghai San Francisco

Lagos Los Angeles Salvador Santiago Singapore New York City Hong Kong Quezon City Auckland Madrid Athens Mexico City Heidelberg Ho Chi Minh City Chicago New Orleans Lisbon Oslo Amsterdam Houston Fortaleza Sydney Wuhan Ahmedabad Bengaluru Montréal Bangkok Dakar Tshwane Jakarta Miami Lagos Los Angeles Salvador Santiago Singapore New York City Hong Kong Quezon City Auckland Madrid Athens Mexico City Heidelberg Ho Chi Minh City Chicago New Orleans Lisbon Oslo Amsterdam Houston Fortaleza Sydney Wuhan Ahmedabad Bengaluru Montréal Bangkok Dakar Tshwane Jakarta Miami