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

Paris Rome Rotterdam Delhi NCT Curitiba Seattle Guadalajara Jakarta Yokohama Athens Los Angeles Heidelberg Hanoi Boston London Bengaluru Bogotá Tokyo Dhaka (North & South) Stockholm Ahmedabad Quito New York City Milan Mexico City Philadelphia Guangzhou Mumbai Freetown Dalian Nanjing Auckland Paris Rome Rotterdam Delhi NCT Curitiba Seattle Guadalajara Jakarta Yokohama Athens Los Angeles Heidelberg Hanoi Boston London Bengaluru Bogotá Tokyo Dhaka (North & South) Stockholm Ahmedabad Quito New York City Milan Mexico City Philadelphia Guangzhou Mumbai Freetown Dalian Nanjing Auckland

Toronto Bangkok Dubai Addis Ababa Singapore Fuzhou San Francisco Tshwane Santiago Zhenjiang Austin Beijing Tel Aviv – Yafo Kolkata Ho Chi Minh City Shenzhen Lisbon São Paulo Vancouver New Orleans Copenhagen Chengdu Abidjan Medellín Durban (eThekwini) Rio de Janeiro Warsaw Houston Dar es Salaam Kuala Lumpur Chennai Qingdao Toronto Bangkok Dubai Addis Ababa Singapore Fuzhou San Francisco Tshwane Santiago Zhenjiang Austin Beijing Tel Aviv – Yafo Kolkata Ho Chi Minh City Shenzhen Lisbon São Paulo Vancouver New Orleans Copenhagen Chengdu Abidjan Medellín Durban (eThekwini) Rio de Janeiro Warsaw Houston Dar es Salaam Kuala Lumpur Chennai Qingdao

Wuhan Oslo Buenos Aires Sydney Quezon City Dakar Barcelona Ekurhuleni Accra Johannesburg Phoenix Miami Melbourne Montréal Nairobi Portland Madrid Hong Kong Karachi Shanghai Chicago Amsterdam Washington, DC Berlin Salvador Lima Cape Town Istanbul Amman Hangzhou Seoul Lagos Wuhan Oslo Buenos Aires Sydney Quezon City Dakar Barcelona Ekurhuleni Accra Johannesburg Phoenix Miami Melbourne Montréal Nairobi Portland Madrid Hong Kong Karachi Shanghai Chicago Amsterdam Washington, DC Berlin Salvador Lima Cape Town Istanbul Amman Hangzhou Seoul Lagos