The aridity index is an invaluable tool used for estimating how dry (or how humid) a location is based on the precipitation ...

According to the World Atlas of Desertification (WAD), deserts, defined as hyper-arid zones with minimal rainfall, make up ...

The article “Study: Higher future flows likely on Colorado” glossed over an important point. Even with a precipitation increase, our area may still become more arid, due to temperature increases.

Aridity can affect the ability to grow many crops. Large parts of the country of Chad, shown here, have drying lands. United Nations Chad, CC BY-NC-SA The soil-biodiversity connection ...