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Recources and Food
Population Growth and Economic Property
2 other sections not shown
19th century abundant acre agricultural American Asia atmosphere average billion tons biochemical oxygen demand calorie capital carbon dioxide CD CD climates Club of Rome coal Colin Clark consumption contaminated cost crops cubic metres developing countries diet discharged Dutch economic Economist Ehrlich energy estimates euthanasia family limitation farmers farms feed fertilisers figure fish forest fuel grain harmful hectare improvements increase India industrial industrialists Japan Japanese kilograms lead less live Malthus married meat ment metals nitrogen nuclear number of births obtained oxygen pig and poultry plants political pollution Population Bomb population growth Population Resources Environment present probably produce product per head Prof protein quantities rainfall rate of population re-cycling reduced reserves Science Advisory Committee sewage shortage solar square metres statement substantial sulphur dioxide supplies tion U.S. standards United Western Europe wood pulp World Food world population world power yield