Mayors from C40 cities around the world arrive in London for Europe’s largest city-wide climate festival
London, UK (23 June 2025) – Mayors from across the C40 network, representing cities on five continents, have arrived in...
C40 2024 Annual Report: How cities are building fairer, safer and greener communities
C40's 2024 annual report is here. Read the foreword written by co-chairs Mayor of London Sadiq Khan and Mayor of…
Europe’s climate and industrial policies are interlinked – cities are at the heart of both
For Europe to lead in sustainable industry and achieve its climate goals, the Clean Industrial Deal must be bold, ambitious,…
Deputy Mayor of London Mete Coban MBE appointed to C40 Board
C40 Cities, a global network of nearly 100 mayors united in climate action, is pleased to announce that Mete Coban...
Clean construction could create millions of jobs and drive inclusive growth in cities, new C40 research shows
New C40 research shows the greener the construction sector, the greater the socio-economic benefits in cities.
Global network of mayors react to President Trump withdrawing the US from the Paris Climate Agreement
President Trump has confirmed that he will once again withdraw the United States from the Paris Climate Agreement in his...