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