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Study: Wildfires Produced Half Of Pollution In Western US In Recent Years

A new study finds that wildfire smoke made up to half of all air pollution in the western U.S. in recent years. 

Researchers at Stanford University and UC San Diego learned that even as pollution emissions declined from other sources like vehicle exhaust and power plants, the amount from fires has increased. The findings highlight the growing public health threat posed by climate change which has contributed to the devastating wildfires that scorched millions of acres in California and the Pacific Northwest last year.

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