AIR - WHO: air pollution 'is single biggest environmental health risk'

New figures link indoor and outdoor air pollution to around 7 millon deaths a year – more than double previous estimatesAir pollution has become the world's single biggest environmental health risk, linked to around 7 million – or nearly one in eight deaths in 2012 – according to the World Health Organisation (WHO) ...

http://www.theguardian.com/environment/2014/mar/25/air-pollution-singl