Casablanca to become 97th C40 city
Casablanca, Morocco, is to become the newest member of C40 Cities in January 2025
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?
C40 Cities Finance Facility announces call for cities to apply for award-winning climate action support
The C40 Cities Finance Facility (CFF) is excited to announce its latest ‘Call for City Applications’ to advance climate action…
Mayors call for global leaders to partner with cities on climate as new poll shows Brazilians support city-led response
More than 70 mayors and city leaders from around the world will arrive in Rio de Janeiro this week for...
Global network of mayors remains committed to climate action despite the election of Donald Trump
C40 Cities Co-Chairs Mayors Sadiq Khan and Yvonne Aki-Sawyerr and C40 Executive Director Mark Watts reaffirm mayors' commitment to tackling…
Youth Reinventing Cities: How C40’s design competitions have given youth a role in planning the cities of tomorrow
Through C40’s Youth Reinventing Cities design competitions, youth actively play a role in shaping a greener, more just urban future…