Wildfire smoke now bigger prenatal threat than human sources of air pollution
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In 1965, a presidential advisory panel issued a report warning that pervasive chemical and carbon pollution was harming environmental health and changing the climate. Five years later, President Richard Nixon signed the Clean Air Act.
Since that 1970 law and its amendments were passed, combined emissions of a half-dozen harmful air pollutants from vehicles and industrial sources have decreased by nearly 80 percent.
But mounting evidence shows that pollution from wildfire smoke is eclipsing those
Since that 1970 law and its amendments were passed, combined emissions of a half-dozen harmful air pollutants from vehicles and industrial sources have decreased by nearly 80 percent.
But mounting evidence shows that pollution from wildfire smoke is eclipsing those
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