There’s one night of the year where celebrations across the United States light up the map like no other. It’s the Fourth of ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

The U.S. has one of the world’s most advanced systems to monitor air pollutants. Can it keep up with a changing climate?

A light layer of Saharan dust is expected to drift along the Texas Gulf Coast by Sunday, bringing hazy skies, reduced air ...

Poor air quality caused by ozone and other sources prompted the warnings across six states on Thursday and Friday.

The high school activities associations for North Dakota’s three neighboring states — Minnesota, South Dakota and Montana — ...

Indiana ranks worst in the U.S. for lung health due to high smoking rates and poor air quality, while Colorado and Hawaii ...

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Welcome to cwg.live, updated around-the-clock by Capital Weather Gang meteorologists. Happening now: Not too humid this ...

Many of the best areas for enjoying nature are in the northern part of the United States, with Montana earning the highest ...

There were no air quality alerts across the U.S. early Friday, following a flurry of warnings partly linked to wildfires in Canada.