The EPA's environmental justice program has helped clean up often overlooked areas on Arizona's border. Poor communities will ...

Bored troops are standing watch, shelters have emptied from McAllen, Texas, to Tucson, Ariz., and border patrols speed ...

Mexico is experiencing extremely long border crossing delays into the U.S. at most entry points due to a scheduled customs system update ...

Growing water use is already overtaxing limited supplies from nearly all of the region’s cross-border rivers, streams and ...

Tariffs probably won't pare back how much produce Arizona imports from Mexico. But they could still wreak havoc on what we put on our plates.

Mexico launched Operative Frontera Norte, Spanish for Operation Northern Border, as part of an effort to bolster security along its northern cities and towns.

Immigration and border security will be the likely focus of U.S.-Mexico relations under the new Trump administration. But ...

It’s constructing processing and detention centers in the borderlands from California to Texas. Those included “soft-sided ..

Climate change is spurring the industry’s rapid growth, which is expected to reach nearly $1 trillion by the 2030s.

Elvia Díaz, editorial page editor, and columnist Joanna Allhands of the Arizona Republic were in Nogales on Friday, talking ...

Respondents were also asked about border security, people brought into the country as children and the "Texas Dream Act." HOUSTON - A new poll from the University of Houston shows 64 percent of ...

The Tucson Police Department has confirmed a collision between a train and a car near Valencia and Old Nogales Highway. Second federal judge orders temporary pause to Trump administration efforts ...