Half of the global population currently lives in cities. By 2050, this is expected to increase to 70 percent, with much of the growth occurring in Asian cities and cities that currently have less than 500,000 inhabitants.
Due to climate change, hundreds of millions of people in urban areas across the world will experience rising sea levels, inland floods, more frequent and intense storms, and more frequent periods of extreme heat and cold in the coming years.
Slum dwellers in developing countries tend to be most vulnerable to climate change because they live along river banks, on slopes prone to landslides, near polluted grounds, on desertified land, in unstable structures, and along coastal waterfronts.
Many cities have not yet addressed climate risks due to lack of relevant city policies and action plans, outmoded regulations on urban planning, lack of capacity to respond to climate disasters, and lack of public awareness.