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About a quarter of the earth's surface is water deficient. It has long been recognized that manipulation of the natural water cycle in arid lands is necessary to feed existing and future populations. This paper emphasizes the role of cloud seeding in potential cycle changes and details the condensation process and the actual techniques involved. Cloud seeding is analyzed vis-a-vis alternative schemes related to other processes in the water cycle, especially soil moisture conservation and groundwater management.
Ambio © 1986 Royal Swedish Academy of Sciences