World Mayors Summit Day 2
Cooler cities, transformed food systems, and climate-focused urban planning. At the 2025 World Mayors Summit, C40 Cities announced three new...
World Mayors Summit Day 1
The World Mayors Summit 2025 opened with a powerful plenary as the Mayors of London, Freetown, and Rio de Janeiro...
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…
C40 cities on track for 50 million good green jobs by 2030 as mayors deliver on World Mayors Summit job creation pledge
London, UK (28 October 2025) – New data released today shows C40 cities are now home to 21 million good,...
Cities continue to deliver a just maritime transition, despite global shipping talks reaching a deadlock
London, United Kingdom (17 October 2025) – C40 Cities Director of Ports and Shipping Alisa Kreynes said, “The inability to...
How London’s Green Economy Design Lab is supporting construction businesses to strengthen and diversify their workforces
London’s Green Economy Design Lab is helping close green skills gaps and building diverse workforces to meet city clean construction…