Deserts are defined by low precipitation, resulting in distinct ecosystems and exposed ground susceptible to erosion. Covering about one-third of Earth's land surface, including polar regions sometimes called "cold deserts," they are classified based on precipitation levels, temperature, causes of desertification, and geographical location.
American poet Robert Frost published his evocative work "Desert Places" in 1933, reflecting on themes of isolation and vast emptiness.
The Second World War's Western Desert Campaign saw a turning point in 1942 when Allied forces secured a crucial victory against Axis troops at El Alamein in Egypt.
In 1961, Peveril Meigs introduced a system for classifying deserts based on precipitation, categorizing them as extremely arid, arid, or semiarid. This system is widely used today.
Evidence suggests that the Atacama Desert in Chile may not have experienced any significant rainfall between 1570 and 1971, highlighting its extreme aridity.
A significant dust storm swept across China in 2001, involving an estimated 6.5 million tons of dust and affecting an area of 134,000,000 square kilometers, demonstrating the scale of these events.