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...
COP28 catch-up #1: What have city leaders been up to?
Check out our highlights from 30 November – 4 December at COP28
Thirteen C40 cities commit to boosting public health by slashing waste emissions
Thirteen Global South cities have signed up to C40’s Pathway Towards Zero Waste, aiming to slash waste emissions and set…
Boston and Stockholm advance towards zero waste
Boston and Stockholm join 25 other cities, states and regions committed to C40’s Advancing Towards Zero Waste Declaration.
How the City Solutions Platform is helping Rio clean up its waste
By Luan Baptista Ribeiro, Programme Management Office Manager at C40 Cities For almost two years, the C40 City Solutions Platform...
23 Global Cities and Regions Advance Towards Zero Waste
Auckland, Catalonia, Copenhagen, Dubai, London, Milan, Montreal, Navarra, New York City, Newburyport, Paris, Philadelphia, Portland, Rotterdam, San Francisco, San Jose,…