(billion tonnes). Current global municipal solid waste production per year. It is projected to reach 2.2 billion tonnes per year by 2025.
The share of air pollution that comes from road vehicles in urban areas. Road vehicles are a significant source of air pollution which can adversely affect human health
In Manila, Philippines, water supply coverage expanded from 67 percent in 1997 to 99 percent in 2009 and brought efficiency gains through lower water losses and operating costs.
Percentage of Europe's largest cities that have areas particularly vulnerable to rising sea levels.
Number of people (in millions) across the US who live less than 1 meter above the high tide line and are at risk from climate-induced coastal flooding.
is the contribution of cities to the world's energy-related global greenhouse gases. This will rise to 74% by 2030.