World Cities Day 2026
Cities driving community-led solutions to climate resilience Cities around the globe are already facing serious impacts of climate change, from...
Building food systems that work for cities
Most of the world’s food is eaten in cities. By 2050, that share is expected to reach 80%. Yet the...
Celebrating the Winners of the Fifth Youth Reinventing Cities Global Competition
C40 is proud to announce the winning projects of this year’s global youth design challenge Youth Reinventing Cities (formerly Students...
New York Climate Week 2026
Catch up on C40’s highlights from New York Climate Week 2026 As New York Climate Week comes to a close,...
Global decision-making is more effective when cities have a seat at the table
Nearly 1 billion people live in C40 cities. Mayors see firsthand the challenges people face and the solutions that can...
Let’s accelerate: Supporting ride-hail drivers to drive electric in Phoenix
We are moving toward the final phase of the project to support the City of Phoenix in electrifying high-mileage vehicles....