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

Heidelberg Guangzhou Houston Nairobi Jakarta Johannesburg Phoenix Salvador Athens Philadelphia Seattle Buenos Aires Dalian Toronto Lagos Santiago Addis Ababa Wuhan Karachi Stockholm Shanghai Bengaluru New York City Curitiba Montréal Rome Fuzhou Casablanca Vancouver Milan Freetown Medellín Paris Heidelberg Guangzhou Houston Nairobi Jakarta Johannesburg Phoenix Salvador Athens Philadelphia Seattle Buenos Aires Dalian Toronto Lagos Santiago Addis Ababa Wuhan Karachi Stockholm Shanghai Bengaluru New York City Curitiba Montréal Rome Fuzhou Casablanca Vancouver Milan Freetown Medellín Paris

Tel Aviv – Yafo Seoul Tshwane Chicago Oslo Miami Yokohama Beijing San Francisco Amsterdam Cape Town Boston Istanbul Lisbon Ho Chi Minh City Bangkok Ahmedabad Melbourne New Orleans Durban (eThekwini) Zhenjiang Ekurhuleni Mumbai Rio de Janeiro Sydney Chennai Amman Barcelona Warsaw Kuala Lumpur Lima Singapore Austin Tel Aviv – Yafo Seoul Tshwane Chicago Oslo Miami Yokohama Beijing San Francisco Amsterdam Cape Town Boston Istanbul Lisbon Ho Chi Minh City Bangkok Ahmedabad Melbourne New Orleans Durban (eThekwini) Zhenjiang Ekurhuleni Mumbai Rio de Janeiro Sydney Chennai Amman Barcelona Warsaw Kuala Lumpur Lima Singapore Austin

Hangzhou Portland Los Angeles Fortaleza Dubai Rotterdam Accra Delhi NCT London Copenhagen Bogotá Guadalajara São Paulo Qingdao Quito Madrid Hong Kong Chengdu Quezon City Washington, DC Dar es Salaam Mexico City Shenzhen Dhaka (North & South) Dakar Abidjan Tokyo Auckland Berlin Nanjing Hanoi Hangzhou Portland Los Angeles Fortaleza Dubai Rotterdam Accra Delhi NCT London Copenhagen Bogotá Guadalajara São Paulo Qingdao Quito Madrid Hong Kong Chengdu Quezon City Washington, DC Dar es Salaam Mexico City Shenzhen Dhaka (North & South) Dakar Abidjan Tokyo Auckland Berlin Nanjing Hanoi