DROUGHTS

This technical, comprehensive entry in the Dangerous Weather series explores the mystery of rain and what happens when it does not come. Allaby (Tornadoes, p. 1384) first defines drought before discussing the reasons for and results of long periods without rain. Readers will gain a clear understanding of scientific terms that are in use, about air movements in the tropics and subtropics, subtropical deserts, desert life, precipitation, evaporation, ocean currents, jet streams, blocking highs, and more. As with the previous book, it may not interest general readers, but it will make research a breeze and may inspire further inquiries into the subject of droughts and water conservation. (b&w photos, drawings, illustrations, charts, graphs, index, not seen) (Nonfiction. 12-14)