Airs Sunday, August 18 at 6 p.m. The world's population is growing, and with it, so is the demand for water. On this month's program, America Abroad examines global issues related to water, from dams on the Tigris and Euphrates rivers, to droughts and floods in Queensland, Australia. We'll also discuss solutions-from water-related I.T. in the developing world to solar-powered purification after the Haiti earthquake.