The Yearly Offer of Action 2025
To deliver the Decade of Acceleration called for by the United Nations Secretary General, decision-makers need to act now, not…
Journal of City Climate Policy and Economy calls for submissions
The Journal of City Climate Policy and Economy is seeking original research and policy guidelines for an open-call issue.
Cities and regions lament failure of global shipping levy talks
C40 Cities and the Under2 coalition of states and regions have criticised national governments for not agreeing on an ambitious...
Statement by C40 Co-Chairs Mayor of London and Mayor of Freetown at the WHO Conference on Air Quality in Cartagena, Colombia
A public statement by C40 Co-Chairs, Mayor of London and the Mayor of Freetown, at the WHO Conference on Air…
C40 Leadership Standards
Our new Leadership Standards set a new global benchmark for climate leadership. They chart a clear course for a just,…
Coalition for Higher Ambition calls on EU leaders to commit to at least 90% emissions reduction by 2040
C40 Cities joins the Coalition for Higher Ambition in urging bold, science-based EU targets for 2040.