As deadly wildfires rage across the U.S. west coast, millions of people have been left struggling with some of the world's worst air pollution.
Gloria Tso reports.
As deadly wildfires rage across the U.S. west coast, millions of people have been left struggling with some of the world's worst air pollution.
Gloria Tso reports.
Right now, wildfires in California, Oregon and Washington have killed at least 27 people. And the deteriorating air quality in the..
Before Hurricane Laura hit the Gulf Coast directly, area residents were regularly exposed to high levels of toxic air pollution...