Mayor of London pledges international support to help Sarajevo tackle life-threatening air pollution
The Mayor of London and Co-Chair of C40 Cities, Sadiq Khan, met with the mayor of Sarajevo and the Prime...
Cities-regions-countries take climate cooperation to the next level within CHAMP coalition
New Subnational Advisory Council marks the first time national governments within CHAMP formally integrate subnational leaders’ perspectives and experiences into...
Jameel C40 Urban Planning Climate Labs showcase enhanced climate planning policies benefitting 4.5 million people to city leaders at London Climate Action Week
London, 24 June 2026 – 4.5 million people at risk of extreme heat, flooding, water stress, and other hazards in the...
Laneshift, a transformative electric freight programme, releases 2025 Impact Report
With emissions reduction potential of 31,007 tonnes and over 300 electric vehicles put on roads, results underline the remarkable impact...
Electric trucks closer to ‘tipping point’ than many realise – and cities can lead the way
Cities hold the keys to accelerating the transition to electric freight and boosting energy security, new analysis from C40 Cities,...
Mayors from around the world unite in call for sustainable urban data centres
London, UK (23 June 2026) – Data centres, the infrastructure powering the global digital economy, are being built in cities...