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

Barcelona Delhi NCT Paris Ahmedabad Hangzhou Cape Town Austin Stockholm Rome Karachi Guadalajara Warsaw Ho Chi Minh City Miami Portland Dakar Zhenjiang Guangzhou Istanbul Quezon City Boston Johannesburg Oslo New York City Amsterdam Ekurhuleni Heidelberg Accra Lisbon Toronto Nairobi Madrid Durban (eThekwini) Barcelona Delhi NCT Paris Ahmedabad Hangzhou Cape Town Austin Stockholm Rome Karachi Guadalajara Warsaw Ho Chi Minh City Miami Portland Dakar Zhenjiang Guangzhou Istanbul Quezon City Boston Johannesburg Oslo New York City Amsterdam Ekurhuleni Heidelberg Accra Lisbon Toronto Nairobi Madrid Durban (eThekwini)

Washington, DC London São Paulo Dubai Qingdao Tel Aviv – Yafo Milan Seattle Copenhagen New Orleans Amman Yokohama Fortaleza Nanjing Lagos Montréal Buenos Aires Salvador Melbourne Lima Auckland Beijing Rio de Janeiro Fuzhou Quito Dar es Salaam Los Angeles Mumbai San Francisco Medellín Houston Tshwane Hanoi Washington, DC London São Paulo Dubai Qingdao Tel Aviv – Yafo Milan Seattle Copenhagen New Orleans Amman Yokohama Fortaleza Nanjing Lagos Montréal Buenos Aires Salvador Melbourne Lima Auckland Beijing Rio de Janeiro Fuzhou Quito Dar es Salaam Los Angeles Mumbai San Francisco Medellín Houston Tshwane Hanoi

Bogotá Bengaluru Chengdu Santiago Dalian Wuhan Philadelphia Phoenix Sydney Freetown Tokyo Seoul Singapore Abidjan Mexico City Hong Kong Shanghai Dhaka (North & South) Jakarta Curitiba Bangkok Rotterdam Berlin Chicago Athens Addis Ababa Kuala Lumpur Casablanca Shenzhen Chennai Vancouver Bogotá Bengaluru Chengdu Santiago Dalian Wuhan Philadelphia Phoenix Sydney Freetown Tokyo Seoul Singapore Abidjan Mexico City Hong Kong Shanghai Dhaka (North & South) Jakarta Curitiba Bangkok Rotterdam Berlin Chicago Athens Addis Ababa Kuala Lumpur Casablanca Shenzhen Chennai Vancouver