C40 Cities: When local action meets global ambition
Behind every climate solution is a community and a city that dared to lead.
Abidjan
Miami
Freetown
Karachi
Bangkok
Quezon City
Rome
Warsaw
Guangzhou
Yokohama
Dakar
Tokyo
Qingdao
Chennai
Amsterdam
Heidelberg
Tshwane
São Paulo
Amman
New York City
Curitiba
Toronto
Zhenjiang
Austin
Addis Ababa
Wuhan
Rotterdam
Sydney
Mexico City
Phoenix
Singapore
Nairobi
Hangzhou
Abidjan
Miami
Freetown
Karachi
Bangkok
Quezon City
Rome
Warsaw
Guangzhou
Yokohama
Dakar
Tokyo
Qingdao
Chennai
Amsterdam
Heidelberg
Tshwane
São Paulo
Amman
New York City
Curitiba
Toronto
Zhenjiang
Austin
Addis Ababa
Wuhan
Rotterdam
Sydney
Mexico City
Phoenix
Singapore
Nairobi
Hangzhou
Stockholm
Jakarta
Dar es Salaam
Montréal
Chicago
Beijing
Quito
Casablanca
Fortaleza
Copenhagen
Shanghai
Bogotá
Houston
Melbourne
Chengdu
Milan
Johannesburg
Delhi NCT
Barcelona
London
Medellín
Portland
Guadalajara
Bengaluru
Santiago
Dalian
Los Angeles
Rio de Janeiro
Ekurhuleni
Istanbul
San Francisco
Nanjing
Paris
Stockholm
Jakarta
Dar es Salaam
Montréal
Chicago
Beijing
Quito
Casablanca
Fortaleza
Copenhagen
Shanghai
Bogotá
Houston
Melbourne
Chengdu
Milan
Johannesburg
Delhi NCT
Barcelona
London
Medellín
Portland
Guadalajara
Bengaluru
Santiago
Dalian
Los Angeles
Rio de Janeiro
Ekurhuleni
Istanbul
San Francisco
Nanjing
Paris
Dhaka (North & South)
Auckland
Philadelphia
Seoul
Boston
Shenzhen
Accra
Tel Aviv – Yafo
Ho Chi Minh City
Berlin
Cape Town
Vancouver
Lisbon
Buenos Aires
Hong Kong
New Orleans
Seattle
Dubai
Durban (eThekwini)
Hanoi
Ahmedabad
Fuzhou
Salvador
Lima
Washington, DC
Athens
Oslo
Madrid
Kuala Lumpur
Mumbai
Lagos
Dhaka (North & South)
Auckland
Philadelphia
Seoul
Boston
Shenzhen
Accra
Tel Aviv – Yafo
Ho Chi Minh City
Berlin
Cape Town
Vancouver
Lisbon
Buenos Aires
Hong Kong
New Orleans
Seattle
Dubai
Durban (eThekwini)
Hanoi
Ahmedabad
Fuzhou
Salvador
Lima
Washington, DC
Athens
Oslo
Madrid
Kuala Lumpur
Mumbai
Lagos
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.
Sources:
1. Oxford Economics data + C40 modelling and World Bank for global GDP.