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Published byShanon Armstrong Modified over 9 years ago
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Population Explosion Your Subtitle Goes Here
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4 BASIC NEEDS AIR FOOD WATER SHELTER
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AIR Clean air is a scarce commodity Human activity means pollution in the air More pollution=more human activity=less oxygen Fossil fuels add 5.5 billion tons of carbon to the atmosphere yearly More people means more carbon dioxide=less oxygen
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FOOD The human body requires a certain amount of calories to survive—fortunately our capacity to produce food has matched our capacity to produce kids As population goes up—demand goes up—capacity goes down By the 1980’s 11 major oceanic fisheries had been depleted to the point of collapse By 2008 an additional 30 nations will be unable to feed themselves
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WATER All living things require water for survival More people=more demand for water=less water 4 of every 5 people lack access to fresh water As people increase, waste increases which is usually dumped into the water
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SHELTER Building shelters requires materials As mans numbers increase, the availability of resources decrease Since World War II an area the size of China and India has been so damaged by human activity that it has lost most of its biological activity 1/3 of the earth’s surface (land) on which nearly 1/5 of humanity lives is threatened by desertification
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CAUSES OF OVERPOPULATION SEX—OBVIOUSLY—cultural factors--like male dominated societies and demand for Boy babies
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CAUSES… MEDICAL TECHNOLOGY— Spending billions to cure diseases but setting up planet earth for a serious population problem
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CAUSES… RELIGION—many religions actively oppose birth control “every child is a gift of God”
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CAUSES… ECONOMICS—most poor countries have no welfare system, no social security, etc... By having many children they get a “living” retirement system. Labor intensive farming—breed your own workforce
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CAUSES… Lack of family planning in poor nations—either not available or not well delivered
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