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

Chengdu Miami Karachi Houston Beijing Delhi NCT Hangzhou Dhaka (North & South) Shanghai Rome Tshwane Nanjing Singapore Addis Ababa Vancouver Toronto Oslo Lisbon Tokyo Abidjan Los Angeles Copenhagen Chicago Auckland Kuala Lumpur Curitiba Guadalajara Qingdao Dakar Ho Chi Minh City Rio de Janeiro Heidelberg Chengdu Miami Karachi Houston Beijing Delhi NCT Hangzhou Dhaka (North & South) Shanghai Rome Tshwane Nanjing Singapore Addis Ababa Vancouver Toronto Oslo Lisbon Tokyo Abidjan Los Angeles Copenhagen Chicago Auckland Kuala Lumpur Curitiba Guadalajara Qingdao Dakar Ho Chi Minh City Rio de Janeiro Heidelberg

Portland Barcelona Johannesburg San Francisco Salvador Philadelphia Montréal Lagos Kolkata Amsterdam Sydney Bengaluru Rotterdam Boston Jakarta Melbourne Cape Town Seoul Washington, DC Chennai Tel Aviv – Yafo Bogotá São Paulo Hong Kong Austin Phoenix Lima Quezon City Yokohama Dar es Salaam Warsaw Zhenjiang Portland Barcelona Johannesburg San Francisco Salvador Philadelphia Montréal Lagos Kolkata Amsterdam Sydney Bengaluru Rotterdam Boston Jakarta Melbourne Cape Town Seoul Washington, DC Chennai Tel Aviv – Yafo Bogotá São Paulo Hong Kong Austin Phoenix Lima Quezon City Yokohama Dar es Salaam Warsaw Zhenjiang

Wuhan Dubai Buenos Aires Ahmedabad Mexico City Guangzhou Quito Santiago Istanbul Dalian Ekurhuleni New York City Madrid Milan Accra Paris Hanoi Durban (eThekwini) Athens Seattle London Fuzhou Freetown Stockholm New Orleans Amman Medellín Shenzhen Nairobi Bangkok Berlin Mumbai Wuhan Dubai Buenos Aires Ahmedabad Mexico City Guangzhou Quito Santiago Istanbul Dalian Ekurhuleni New York City Madrid Milan Accra Paris Hanoi Durban (eThekwini) Athens Seattle London Fuzhou Freetown Stockholm New Orleans Amman Medellín Shenzhen Nairobi Bangkok Berlin Mumbai