The world is becoming increasingly urbanized, more than half the world’s population lives in cities, and that share is projected to rise to 60% by 2030.
Cities and metropolitan areas account for more than 70% of global carbon emissions and over 60% of resource use.
Rapid urbanization results in a growing number of slum dwellers, inadequate and overburdened infrastructure and services (such as waste collection and water and sanitation systems, roads and transport), which worsens air pollution and other negative repercussions of unplanned urban sprawl. Learn more