C40 Cities: When local action meets global ambition
Behind every climate solution is a community and a city that dared to lead.
Washington, DC
London
Buenos Aires
Rome
Dalian
Portland
Istanbul
Ekurhuleni
Casablanca
Kuala Lumpur
Warsaw
Phoenix
Milan
Boston
Zhenjiang
Karachi
Addis Ababa
Vancouver
Guadalajara
Guangzhou
Amman
Santiago
Sydney
Dhaka (North & South)
Tel Aviv – Yafo
Chicago
Stockholm
Chennai
Accra
Jakarta
Dakar
Hanoi
Los Angeles
Washington, DC
London
Buenos Aires
Rome
Dalian
Portland
Istanbul
Ekurhuleni
Casablanca
Kuala Lumpur
Warsaw
Phoenix
Milan
Boston
Zhenjiang
Karachi
Addis Ababa
Vancouver
Guadalajara
Guangzhou
Amman
Santiago
Sydney
Dhaka (North & South)
Tel Aviv – Yafo
Chicago
Stockholm
Chennai
Accra
Jakarta
Dakar
Hanoi
Los Angeles
Hong Kong
Seoul
New Orleans
Houston
Montréal
Cape Town
Tshwane
Shenzhen
Shanghai
Mumbai
Ho Chi Minh City
São Paulo
Melbourne
Copenhagen
Dar es Salaam
Lagos
Wuhan
Lima
Abidjan
Bogotá
Amsterdam
Fortaleza
Rotterdam
Berlin
Chengdu
Johannesburg
Qingdao
Freetown
Oslo
Paris
Toronto
Philadelphia
Nanjing
Hong Kong
Seoul
New Orleans
Houston
Montréal
Cape Town
Tshwane
Shenzhen
Shanghai
Mumbai
Ho Chi Minh City
São Paulo
Melbourne
Copenhagen
Dar es Salaam
Lagos
Wuhan
Lima
Abidjan
Bogotá
Amsterdam
Fortaleza
Rotterdam
Berlin
Chengdu
Johannesburg
Qingdao
Freetown
Oslo
Paris
Toronto
Philadelphia
Nanjing
Seattle
Salvador
Curitiba
Nairobi
Durban (eThekwini)
Quezon City
Beijing
Bengaluru
Dubai
Bangkok
Ahmedabad
Delhi NCT
Hangzhou
Auckland
Rio de Janeiro
New York City
Fuzhou
Lisbon
Madrid
Barcelona
Heidelberg
Mexico City
San Francisco
Medellín
Yokohama
Singapore
Austin
Tokyo
Athens
Quito
Miami
Seattle
Salvador
Curitiba
Nairobi
Durban (eThekwini)
Quezon City
Beijing
Bengaluru
Dubai
Bangkok
Ahmedabad
Delhi NCT
Hangzhou
Auckland
Rio de Janeiro
New York City
Fuzhou
Lisbon
Madrid
Barcelona
Heidelberg
Mexico City
San Francisco
Medellín
Yokohama
Singapore
Austin
Tokyo
Athens
Quito
Miami
C40 has
97
member cities
Making up more than
22%
of the global economy1
Accelerator Reports
Latest Reports Now Available
Since 2017, 74 forward-thinking C40 cities have been driving transformative action in critical sectors through C40’s High-Impact Accelerators.
In the latest Accelerator Reports, we celebrate the progress and impact of cities’ climate actions.
Latest News
Sources:
1. Oxford Economics data + C40 modelling and World Bank for global GDP.