Bjorn Lomborg: The deadliest environmental threat (it’s not global warming)
'The most important is in fact indoor air pollution.
One-third of the world’s people — 2.9 billion — cook and keep warm burning twigs and dung, which give off deadly fumes. This leads to strokes, heart disease and cancer, and disproportionately affects women and children. The World Health Organization estimates that it killed 4.3 million people in 2012. Add the smaller death count from outdoor pollution, and air pollution causes one in eight deaths worldwide.'
http://nypost.com/2014/04/21/the-deadliest-environmental-threat-its-not-global-warming/