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World Health Organization: Air pollution kills millions

An estimated 7 million people died from indoor and outdoor air pollution in 2012, according to a report released Tuesday by the World Health Organization.

Tourists with masks get off a boat in Port Klang, Malaysia, March 14, 2014.
Tourists with masks get off a boat in Port Klang, Malaysia, March 14, 2014. The schools closed for a day because of the unhealthy air.Xinhua / eyevine/Redux

Michele Richinick