From Arizona's canyons to Utah's buttes and beyond, our national parks columnist shares the most adventurous Southwest ...

For many years, scientists have been discussing whether the population in mountain regions is increasingly at risk from ...

Literal groundbreaking research by Dr. Giorgio Arriga enhances our understanding of the long-term evolution of seismogenic ...

In some Amazon rivers in Brazil, cases of diseases related to inadequate basic sanitation, such as malaria and acute diarrhea ...

Under the Trump administration, advocates to preserve an area that includes Frenchman Mountain and Rainbow Gardens are changing gears.