Air pollution is greatest preventable killer. Air pollution caused 7 million deaths in 2012 alone, greatly affecting South East Asia and the Western Pacific. Exposure happens indoors and outdoors, due to fumes from burning fuels and industry emissions.
Air pollution also affects the environment, as it lowers plant function, cutting the bottom of the food web down considerably. This rocks entire ecosystems, as well as affecting the lung function of many animals.
Can this process be reversed?
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