Cities: The urban equation.
D002947:Cities / Q000453:epidemiology / Q000706:statistics & numerical data*; D003247:Conservation of Natural Resources / Q000379:methods / Q000639:trends*; D057232:Global Warming / Q000517:prevention & control; D006801:Humans; D012106:Research / Q000639:trends*; D012107:Research Design; D012108:Research Personnel / Q000600:supply & distribution; D014505:Urban Population / Q000706:statistics & numerical data* / Q000639:trends*; D014507:Urbanization / Q000639:trends*