The American Lung Association has released its annual “State of the Air” report and several major cities are among the worst ...

Sometimes, a small incident reveals larger truths about our world. Consider report ...

Bay Area's air quality struggles despite green reputation, with high ozone and particle pollution impacting health, ...

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View of north and south vents from the northwest, approximately 21 hours after the end of episode 18 of the eruption at ...

Fresno ranked third among the worst U.S. cities for air pollution, according to the American Lung Association’s annual State ...

On Thursday, President Trump signed an executive order that aims to permit, for the first time, industrial mining of the ...