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

Amman Jakarta Guadalajara Houston Milan Yokohama Athens Dar es Salaam Hangzhou Dakar Hanoi Oslo Dalian Addis Ababa Chennai Austin Santiago Quezon City Chengdu Toronto Auckland Singapore Berlin Dhaka (North & South) Fuzhou Copenhagen New York City Tel Aviv – Yafo Quito Stockholm Philadelphia Beijing Istanbul Amman Jakarta Guadalajara Houston Milan Yokohama Athens Dar es Salaam Hangzhou Dakar Hanoi Oslo Dalian Addis Ababa Chennai Austin Santiago Quezon City Chengdu Toronto Auckland Singapore Berlin Dhaka (North & South) Fuzhou Copenhagen New York City Tel Aviv – Yafo Quito Stockholm Philadelphia Beijing Istanbul

Buenos Aires Heidelberg Casablanca Abidjan Tshwane Lima Bengaluru Guangzhou Zhenjiang São Paulo Paris Amsterdam Cape Town Durban (eThekwini) Delhi NCT Rome Rotterdam Vancouver Wuhan Salvador Warsaw Karachi Johannesburg Nairobi Mexico City Dubai Chicago Freetown Medellín Bogotá Portland Barcelona Curitiba Buenos Aires Heidelberg Casablanca Abidjan Tshwane Lima Bengaluru Guangzhou Zhenjiang São Paulo Paris Amsterdam Cape Town Durban (eThekwini) Delhi NCT Rome Rotterdam Vancouver Wuhan Salvador Warsaw Karachi Johannesburg Nairobi Mexico City Dubai Chicago Freetown Medellín Bogotá Portland Barcelona Curitiba

Boston Hong Kong Ekurhuleni Ahmedabad Lagos Tokyo Phoenix Nanjing Shanghai New Orleans Bangkok Lisbon Montréal Ho Chi Minh City Seattle Rio de Janeiro Miami San Francisco Seoul London Sydney Qingdao Kuala Lumpur Shenzhen Madrid Mumbai Melbourne Los Angeles Washington, DC Accra Fortaleza Boston Hong Kong Ekurhuleni Ahmedabad Lagos Tokyo Phoenix Nanjing Shanghai New Orleans Bangkok Lisbon Montréal Ho Chi Minh City Seattle Rio de Janeiro Miami San Francisco Seoul London Sydney Qingdao Kuala Lumpur Shenzhen Madrid Mumbai Melbourne Los Angeles Washington, DC Accra Fortaleza