On New Year's Day, several people messaged me to ask if I had noticed how bad the air quality was in Phoenix after the previous night's firework celebrations. It was plain to see that day. Particulate ...

This is part of a monthly series answering readers' climate-related questions and highlighting Arizona's unsung climate leaders. The stories aim to help to connect and inspire Arizonans who care about ...

The effects of air pollution on kids "should have parents up in arms" to force changes in air pollution regulations, a reader said. Experts say children exposed to high air pollution levels can lose ...