Border wall construction through Organ Pipe Cactus National Monument in Arizona is encroaching on a site where people from many cultures have interacted for thousands of years.
The Mohave rattlesnake is famous for its variable venom – but the reasons behind that variation are not as straightforward as we thought.
Some observers have blamed recent wildfires on poor forest management, while others point to climate change. In fact, a climate scientist explains, reducing fire risks means tackling both issues.
New research projects that climate change could greatly increase airborne dust levels in the southwestern US, causing higher hospital admissions and premature deaths from heart and lung ailments.
Blood Meridian, Cormac McCarthy’s famous novel, may be unfilmable – not because of its gruesome violent tale of U.S. imperialism in the Southwest, but because its religious vision is terrifying.
Trump's administration plans to ramp up prosecution of unauthorized border crossings. Here's the story of how it became illegal in the first place.
Multiple times over the centuries, climate issues caused Pueblo farming to collapse, taking the establishment down with it. New research suggests there are parallels with American inequalities today.
The U.S. Southwest drifted into a drier state during the last 35 years due to fewer rain-producing weather patterns and hotter temperatures.