Overview
C40 Cities is a global network of nearly 100 major cities working together to confront climate change and build more sustainable, resilient urban systems.
What they do
C40 connects city leaders to:
Share best practices and policies
Accelerate climate action plans
Implement sustainable infrastructure
Coordinate global urban climate initiatives
Focus areas include:
Clean transportation
Green buildings
Waste reduction
Climate resilience
Why it matters
Cities generate over 70% of global emissions. C40 operates at the level where change can happen fastest—urban systems.
Drives policy adoption across major global cities
Aligns local action with global climate goals
Helps cities move from planning → implementation
Impact
Hundreds of climate action plans across member cities
Major influence on urban policy worldwide
Supports millions of citizens through cleaner, safer cities