'Roving sentinels' discover new air pollution sources

In 2019, University of Utah atmospheric scientists, the Environmental Defense Fund and other partners added a new tool to their quiver of air quality monitors—two Google Street View cars, Salt Lake Valley's roving sentinels ...

Air pollution may increase freezing rain in northern hemisphere

Freezing rain is a typical weather disaster in winter and early spring over many regions of the world, even tropical areas. It develops as supercooled water (below 0 °C) in the air and freezes immediately after depositing ...

Smoke from wildfires ages in the atmosphere

Emissions, like smoke from wildfires and exhaust from vehicles, go through chemical changes when they enter the atmosphere. New research from the University of Georgia shows, for the first time, that these changes may affect ...

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