What Are Atmospheric Aerosols Exactly Aerosols refer to fine solid or liquid particles suspended in the atmosphere, where ...

New measurements demonstrate that smoke particles in the upper atmosphere are twice the size of lower-altitude ones.

Wildfires in the western United States are getting bigger, stronger, and worse as climate-fueled drought and unprecedented heat push them to new extremes. But their impact isn’t just confined to the ...

California, home of the freeway and the car-based lifestyle, has long struggled with air pollution — and been a pioneer in cleaning up the air, for example in vehicle emission standards. But in recent ...