Air pollution is projected to prematurely kill an estimated 3.6 million people each year by 2050, exceeding even the deaths stemming from poor sanitation and a lack of clean drinking water, according to a report from the Organization for Economic Cooperation and Development. The deaths from particulate matter in the air, primarily in China and India, would nearly be doubled when ground-level ozone and "indoor pollution" are taken into account, the report said.

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