Peter Friederici

It’s well known that extracting natural gas for fuel contributes to global warming. But animals that live where these resources are mined face another problem: excessive noise.

The linked problems of food waste and food insecurity are common in the U.S. In northern Arizona’s Yavapai County, public health experts estimate some 80,000 people are food insecure, including one in three children and one in six seniors. They can’t always count on regular or nutritious meals.

A dragonfly of the species Epitheca princeps is a showy creature, with broad, clear wings marked by bold black splotches. But its young have a much more hidden lifestyle.

Volcanic eruptions are among nature’s most dramatic events. But sometimes their impact can vary a lot even over a small area.

In 1950, Hosteen Nez found a yellowish rock outcrop not far from Cameron, Arizona. His people, the Diné, called it leetso. Ten years earlier that find would have been no big deal. But with the Cold War heating up, Nez suspected this was the valuable ore geologists said contained uranium.