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Published byKristopher Hamilton Modified over 9 years ago
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POPULATION GEOGRAPHY
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Tokyo-How would you be different? metro=35 million
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Mumbai, India-20 million-60,000 per sq mile
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St Thomas
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WORLDWIDE POPULATION GROWTH 80 Million a year 220,000 per day 80 Million a year 220,000 per day
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WHY? WELL…. More food grown More food grown Better food grown Better food grown Better sanitation Better sanitation Modern medicine Modern medicine
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CALCULATING POPULATION GROWTH Birth Rate – Death Rate = growth rate
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POPULATION PYRAMIDS Shows age/sex distribution of a population Shows age/sex distribution of a population
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WHY SHOULD I CARE? YOUR FUTURE IS AT STAKE OVERPOPULATION!! OVERPOPULATION!! 12 BILLION BY 2050
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YOUR TURN What are some problems that would arise from having more people on earth? What are some problems that would arise from having more people on earth?
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POPULATION DENSITY, DISTRIBUTION, & MOVEMENT
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II. POPULATION DISTRIBUTION A. Spread unevenly 1.90% In Northern Hemisphere 2.75% in Asia B. Areas favorable to settlement 1. people seek mild climates, fertile soil, fresh water, 1. people seek mild climates, fertile soil, fresh water, edges of continents edges of continents
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POPULATION DENSITY Subway in Taiwan
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III. POPULATION DENSITY A. It’s the # of people living per square mile - Canada=8 NYC=55,423 B. People crowd into areas favorable to settlement
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CARRYING CAPACITY # of living things a piece of land can support # of living things a piece of land can support
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DETERMINING FACTORS Fertility of land Fertility of land Farming technology Farming technology Access to fresh water Access to fresh water
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EXCEEDING CARRYING CAPACITY “If humans can't control the explosive population growth in the coming century, disease and starvation will do it.” (Ecology Dept., Cornell University)
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EXCEEDING CARRYING CAPACITY - FUTURE PROBLEMS Competition for fresh water (war) Competition for fresh water (war) Loss of farmland (less food) Loss of farmland (less food) Depletion of fossil fuels (no energy) Depletion of fossil fuels (no energy) Mass migration Mass migration
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