Morning smog envelops the skyline in Mumbai, India, Friday, Oct. 20, 2017. Environmental pollutants are killing at least 9 million people and costing the world $4.6 trillion a year, a toll exceeding that of wars, smoking, hunger or natural disasters.
Morning smog envelops the skyline in Mumbai, India, Friday, Oct. 20, 2017. Environmental pollutants are killing at least 9 million people and costing the world $4.6 trillion a year, a toll exceeding that of wars, smoking, hunger or natural disasters. One out of every six premature deaths in the world in 2015, about 9 million, could be attributed to disease from toxic exposure, according to a major study released Thursday in The Lancet medical journal. Asia and Africa are the regions putting the most people at risk, the study found, while India tops the list of individual countries. (AP Photo/Rafiq Maqbool)