Arizona's natural landscape is gorgeous to behold from any angle. Stunning mesas rise from arid deserts. The sheer scope of the Grand Canyon is almost beyond comprehension, and the state's 2.6 million ...

Alaska Natives confront rising temperatures, erosion and flooding, finding solutions to combat climate change, or relocate entirely; A new approach to incarceration uses therapeutic programs inside ...

In our high desert, water is the most limiting resource. Most species have adapted by becoming remarkably efficient in their use of water. Some grow only when it rains while others persist in places ...