The Painted Desert in northern Arizona is a mesmerizing landscape of vibrant badlands stretching across the Colorado Plateau.

Saharan mustard threatens desert plant diversity and hampers recovery from climate fluctuations. Once believed to be ...

From the towering dunes of Colorado to the windswept ridges of California, the U.S. is home to some of the most breathtaking ...

The U.S. Army Corps of Engineers is taking fire debris to 18 landfills and recycling centers across Southern California.