Dirty air killed an alarming 7 million people – or, one of every eight human lives lost – in 2012, according to new estimates released today by the World Health Organization (WHO).
n 2010, air pollution ranked as the fourth leading preventable health risk, behind poor diet, high blood pressure and tobacco smoke, according to a major study funded by the Gates Foundation.
Indoor air pollution, primarily caused by burning solid fuels for heating and cooking, accounted for slightly more than half – 4.3 million – of those deaths in 2012.
Outdoor air pollution accounted for the remaining 3.7 million deaths. ...