During the late stages of the last ice age, the Arabian Desert wasn't always the dry expanse you know today. In fact, recent ...

As the Colorado River’s reservoirs have declined, even larger amounts of groundwater have been drained from aquifers. Using ...

The Sonoran Desert in southern Arizona is hot and sandy. But where the Santa Cruz River flows, you’ll find something like an ...

As drought conditions sear Arizona, the state provides millions of gallons of water to wildlife in places where there is none ...

The vast Peruvian desert is undergoing a startling transformation—it’s turning green, and this unexpected change is causing alarm among Latin American scientists. In this video, we explore the reasons ...

Early Mars likely started with an ocean a few hundred meters deep, so this underground storage accounts for much of the ...