Nov 26, 2025 · Deserts are varied and variable environments, and it is impossible to arrive at a concise definition that satisfies every case. However, their most fundamental characteristic is a shortage of …

Deserts and semi-deserts are home to ecosystems with low or very low biomass and primary productivity in arid or semi-arid climates. They are mostly found in subtropical high-pressure belts …

Dec 15, 2025 · Deserts are a subset of drylands, which are arid or semi-arid areas where water loss through evaporation and transpiration exceeds the average yearly rainfall. Drylands make up over …

Approximately one-third of the Earth's land surface is desert, arid land with meager rainfall that supports only sparse vegetation and a limited population of people and animals.

Information about all of the deserts of the world, from the Arctic to the Sahara. Learn all there is to know about these fascinating landscapes.

Jul 24, 2013 · Despite all the ice and snow on the ground, most of Antarctica is a desert. Click for more detail. When you picture a desert, you may think of heat, sand, and a lot of empty space. While this …

Deserts cover more than one-fifth of the Earth's land area, and they are found on every continent. A place that receives less than 10 inches (25 centimeters) of rain per year is considered a...