What happened at the U20 Summit in Rio?
What demands do mayors have for national leaders at the G20 Summit and COP29, following a successful U20?
Mayors, governors and subnational leaders call for greater action on fossil fuels from Heads of State at UN Summit
Ahead of the UN Summit of the Future, mayors are urging Heads of State to step up action and leave…
Building a sustainable future for everyone, everywhere
The European Union should follow cities' lead to create a prosperous and safe future. Letter from C40 Europe mayors to…
Pope Francis and C40 mayors chart course for climate resilience
C40 mayors met His Holiness Pope Francis for the Vatican's climate resilience summit and made a united call for stronger…
Governing Mayor of Oslo elected to C40 Cities Steering Committee, renews grant in long-standing collaboration
Governing Mayor of Oslo Eirik Lae Solberg has been elected as Vice Chair of the C40 Cities Steering Committee.
C40 welcomes European Commission’s 2040 emission reduction recommendations, urges greater ambition
C40 Cities welcomes the European Commission’s communication on the EU 2040 climate target, which aims to set a path to…