Solutions for a water-short world.
D003247:Conservation of Natural Resources / Q000379:methods*; D004782:Environmental Health; D014943:Global Health; D006801:Humans; D011158:Population Growth; D012037:Refuse Disposal / Q000379:methods; D014876:Water Pollution / Q000517:prevention & control* / Q000706:statistics & numerical data; D014881:Water Supply / Q000592:standards* / Q000706:statistics & numerical data