(NBC) - According to a new report by the World Health Organization (WHO), air pollution is now the world's largest single environmental health risk.
The report says that in 2012, seven million people died as a result of air pollution exposure. That's 1 in 8 total worldwide deaths, and more than double previous figures.
WHO officials say reducing air pollution could save millions of lives.
They stress the importance to raise awareness to ensure governments and public health authorities start promoting monitoring and interventions.
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