The type of dust storm, known as a “haboob,” caused hazardous weather conditions in Mexico's border region, prompting ...

The first Trump administration built long segments of steel wall on Arizona's border. Conservationists fear wildlife will ...

Between that and dust suppression ... the latest from The Arizona Republic every Tuesday The steel wall across that refuge’s south end obliterated much of the restoration.

Robert Lee Hotz covered new research and its impact on society for The Wall Street Journal.