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

Philadelphia Hong Kong Bangkok Chicago Shenzhen Dalian Houston New Orleans Amman Portland Santiago Stockholm Dubai Hanoi Dhaka (North & South) San Francisco Madrid Durban (eThekwini) Zhenjiang Chennai Athens Singapore Lagos Toronto Cape Town Salvador Wuhan Melbourne Berlin Abidjan Lisbon Guangzhou Kuala Lumpur Philadelphia Hong Kong Bangkok Chicago Shenzhen Dalian Houston New Orleans Amman Portland Santiago Stockholm Dubai Hanoi Dhaka (North & South) San Francisco Madrid Durban (eThekwini) Zhenjiang Chennai Athens Singapore Lagos Toronto Cape Town Salvador Wuhan Melbourne Berlin Abidjan Lisbon Guangzhou Kuala Lumpur

Quezon City Mexico City Mumbai Amsterdam Auckland Nanjing Los Angeles Seattle Boston Fuzhou Tshwane Sydney São Paulo Rome Jakarta Barcelona Copenhagen Seoul Warsaw Lima London Bogotá Quito Fortaleza Rotterdam Rio de Janeiro Ho Chi Minh City Tel Aviv – Yafo Buenos Aires Dakar Tokyo Oslo Shanghai Quezon City Mexico City Mumbai Amsterdam Auckland Nanjing Los Angeles Seattle Boston Fuzhou Tshwane Sydney São Paulo Rome Jakarta Barcelona Copenhagen Seoul Warsaw Lima London Bogotá Quito Fortaleza Rotterdam Rio de Janeiro Ho Chi Minh City Tel Aviv – Yafo Buenos Aires Dakar Tokyo Oslo Shanghai

Milan Nairobi Guadalajara Qingdao Medellín Addis Ababa Miami Curitiba Vancouver Hangzhou Casablanca Bengaluru Montréal Washington, DC Istanbul New York City Austin Karachi Johannesburg Beijing Yokohama Freetown Delhi NCT Ahmedabad Phoenix Accra Ekurhuleni Heidelberg Chengdu Dar es Salaam Paris Milan Nairobi Guadalajara Qingdao Medellín Addis Ababa Miami Curitiba Vancouver Hangzhou Casablanca Bengaluru Montréal Washington, DC Istanbul New York City Austin Karachi Johannesburg Beijing Yokohama Freetown Delhi NCT Ahmedabad Phoenix Accra Ekurhuleni Heidelberg Chengdu Dar es Salaam Paris