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

Amman Hanoi Seattle Bangkok Tshwane Madrid Zhenjiang Ahmedabad Oslo Cape Town Dakar Fuzhou Bengaluru Accra Curitiba Delhi NCT Dar es Salaam London Paris New Orleans Auckland Nairobi Boston Houston Lisbon Freetown Abidjan Heidelberg Phoenix Miami Montréal Hangzhou Amman Hanoi Seattle Bangkok Tshwane Madrid Zhenjiang Ahmedabad Oslo Cape Town Dakar Fuzhou Bengaluru Accra Curitiba Delhi NCT Dar es Salaam London Paris New Orleans Auckland Nairobi Boston Houston Lisbon Freetown Abidjan Heidelberg Phoenix Miami Montréal Hangzhou

Berlin Durban (eThekwini) Johannesburg Barcelona Salvador Rotterdam Addis Ababa Stockholm São Paulo Buenos Aires Lima Yokohama Kuala Lumpur Philadelphia Fortaleza Warsaw Istanbul Hong Kong Medellín Milan Wuhan Melbourne Dubai Jakarta Chengdu Ho Chi Minh City Toronto Chennai San Francisco Rio de Janeiro Chicago Los Angeles Berlin Durban (eThekwini) Johannesburg Barcelona Salvador Rotterdam Addis Ababa Stockholm São Paulo Buenos Aires Lima Yokohama Kuala Lumpur Philadelphia Fortaleza Warsaw Istanbul Hong Kong Medellín Milan Wuhan Melbourne Dubai Jakarta Chengdu Ho Chi Minh City Toronto Chennai San Francisco Rio de Janeiro Chicago Los Angeles

Amsterdam Athens Quezon City Ekurhuleni Tel Aviv – Yafo Lagos Guadalajara Shanghai Seoul Quito Washington, DC Qingdao Rome Nanjing Guangzhou Bogotá Santiago Copenhagen Beijing Sydney Tokyo Shenzhen Dalian Mumbai Portland Karachi Mexico City New York City Singapore Dhaka (North & South) Austin Vancouver Amsterdam Athens Quezon City Ekurhuleni Tel Aviv – Yafo Lagos Guadalajara Shanghai Seoul Quito Washington, DC Qingdao Rome Nanjing Guangzhou Bogotá Santiago Copenhagen Beijing Sydney Tokyo Shenzhen Dalian Mumbai Portland Karachi Mexico City New York City Singapore Dhaka (North & South) Austin Vancouver