A  web·guide to sustainable development, conservation & the glocal environment



Sarah Grado and Kaitlin Cavallo of Brandeis University developed this page in 2019 and 2018 respectively.

Deserts “cover about one fifth of the Earth's surface and are defined to occur where rainfall is less than 50

   centimeters per year.”*

Be sure to distinguish between deserts on the one hand and desertification on the other; the former is an

   ecotype, one celebrated in many cultures, while the latter is a process, one the world is working hard

   to avoid. Information on desertification can be found at the Land degradation & desertification page.

This page focuses on general desert information followed by a short inchoate section on deserts by region

   (which will eventually be expanded).

Deserts & arid lands