While there might not be as many freshwater species, Northern Arizona University researchers say it would still hurt areas like the Colorado River.

The Petrified Forest and Painted Desert are uniquely Arizona road trip destinations. Here's why it's worth the drive and what ...

West Greenland's lakes have undergone an alarming change. Within just a couple of years, thousands of its great blue lakes ...

Phoenix has seen 153 days without measurable rain, the 2nd longest dry spell on record. 160 days is the current dry streak ...

The fire — which erupted near Castaic Lake in Los Angeles County, north of Santa Clarita, late Wednesday morning — has grown ...