The twenty-ninth day: accommodating human needs and numbers to the earth's resources.
D000383:Agriculture; D001723:Birth Rate; D002980:Climate; D003906:Developing Countries; D004463:Ecology; D004787:Environmental Pollution; D006801:Humans; D009026:Mortality; D011158:Population Growth; D011640:Public Policy; D012959:Socioeconomic Factors