In 2021, while revelers across America celebrated the fourth of July, three researchers waded through a shallow river delta ...

Federal plans call for 24.7 miles of new border wall between the Nogales Border Patrol Station in Santa Cruz County and the ...

A new study gives Arizona and Nevada high marks for their reuse of treated sewage effluent as a way to reduce Colorado River ...

Trump gives border land to military, raising legal questions and signaling a new phase in U.S. immigration enforcement ...