A dry climate might impact how people live by increasing: both the risk of drought and other water shortages and irrigation needs.
Regions lying within the dry climate group occur where precipitation is low. There are two dry climate types: arid and semiarid. Most arid climates receive 10 to 30 centimeters (four to 12 inches) of rain each year, and semiarid climates receive enough to support extensive grasslands.
Deserts in Africa, Saudi Arabia, Australia and the Southwest U.S. are all examples of the dry climate. There are two subcategories: semi-arid and arid. Semi-arid is dry with differing amounts of precipitation; this region gets between 10 to 20 inches of rain a year.
Dry climates are found throughout the globe, particularly in western North America, Australia, southern South America, central and southern Africa and much of Asia.
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