<https://research.noaa.gov/2017/03/02/us-surface-ozone-trends-and-extremes-from-1980-to-2014-quantifying-the-roles-of-rising-asian-emissions-domestic-controls-wildfires-and-climate/>
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<https://research.noaa.gov/2017/03/02/us-surface-ozone-trends-and-extremes-from-1980-to-2014-quantifying-the-roles-of-rising-asian-emissions-domestic-controls-wildfires-and-climate/>