What is the first thing that pops into your mind when you hear the word pollution? Some see it as foggy skies, piles of ...

Millions of lives in India have been lost because of air pollution. The programme Insight looks at how a growing middle class ...

The lists are based on the average number of days declared 'unhealthy' by government environmental agencies, with the most ...

The report then ranks the most polluted and cleanest U.S. cities based on an area’s number of unhealthy air days and the city’s particulate pollution. The Detroit-Warren-Ann Arbor area comes ...

The report then ranks the most polluted and cleanest U.S. cities based on an area’s number of unhealthy air days and the city’s particulate pollution. This year’s report looked at a three ...