Transform systems, transform impact
Cities hold 55% of the global population and generate 70% of emissions.
Transforming the systems that shape them cuts emissions while making cities more livable and resilient.
C40’s programmes and networks help mayors redesign these systems. Through peer-to-peer collaboration, city teams share expertise, test solutions, and deliver proven results faster.
Explore how we’re transforming city systems
Cities are already experiencing a new climate reality. C40’s adaptation work helps cities to take action to protect residents and infrastructure from immediate and future climate risks, as well as to develop solutions and implement actions towards transformational, city-wide resilience to the impacts of climate change.
Cities are urgently working to clean the air to protect communities from pollution that causes 6.7 million premature deaths globally each year.
Cities are transitioning to clean energy, decarbonising buildings, and adopting cleaner construction practices to cut emissions whilst creating healthier, more resilient environments for all.
Cities are driving the transformation of food systems to improve health and resilience, reduce emissions, and ensure equitable access to sustainable food.
How cities plan and design urban space shapes climate outcomes and quality of life. C40 helps mayors develop bold strategies, regulations, and projects that enable urban regeneration and growth.
Around the world, sustainable urban waste management practices can improve public health and economic opportunity, promote equity and create resilient infrastructure. When approached holistically, waste and sustainable materials management can help cities reduce 15-20% of their emissions through reduction, avoidance, recycling, treatment and offsetting.
