As a city dweller, I was stunned to find out that as many as 90% of people in urban areas breathe unsafe air.
The news comes from a World Health Organization survey of 1600 cities in 91 countries. Researchers also found that half of the world's urban population is exposed to at least 2.5 times more pollution than is recommended.
Although it's not surprising that air pollution is a problem in cities, I'm concerned that it's this bad. Is it time to move, or time to make a change?