POPULATION GEOGRAPHY. Tokyo-How would you be different? metro=35 million.
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Transcript of POPULATION GEOGRAPHY. Tokyo-How would you be different? metro=35 million.
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POPULATION POPULATION GEOGRAPHYGEOGRAPHY
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Tokyo-How would you be Tokyo-How would you be different? metro=35 milliondifferent? metro=35 million
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Mumbai, India-20 million-Mumbai, India-20 million-60,000 per sq mile60,000 per sq mile
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St ThomasSt Thomas
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WORLDWIDE POPULATIONWORLDWIDE POPULATIONGROWTHGROWTH
80 Million a year 220,000 per day80 Million a year 220,000 per day
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WHY? WELL….WHY? WELL….
More food More food growngrown
Better food Better food growngrown
Better Better sanitationsanitation
Modern Modern medicinemedicine
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CALCULATING POPULATIONCALCULATING POPULATIONGROWTHGROWTH
Birth Rate – Death Rate = growth Birth Rate – Death Rate = growth raterate
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POPULATION PYRAMIDSPOPULATION PYRAMIDS
Shows age/sex distribution of a Shows age/sex distribution of a populationpopulation
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WHY SHOULD I CARE?WHY SHOULD I CARE?
YOUR FUTURE IS AT STAKEYOUR FUTURE IS AT STAKE
OVERPOPULATION!!OVERPOPULATION!!
12 BILLION BY 205012 BILLION BY 2050
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YOUR TURNYOUR TURN
What are some problems What are some problems that would arise from that would arise from having more people on having more people on earth?earth?
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POPULATION DENSITY, POPULATION DENSITY, DISTRIBUTION, & DISTRIBUTION, &
MOVEMENTMOVEMENT
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II. POPULATION II. POPULATION DISTRIBUTIONDISTRIBUTION
A. Spread unevenly A. Spread unevenly 1.90% In Northern Hemisphere 1.90% In Northern Hemisphere
2.75% in Asia 2.75% in Asia B. Areas favorable to settlementB. Areas favorable to settlement 1. people seek mild climates, fertile soil, fresh water, 1. people seek mild climates, fertile soil, fresh water, edges of continentsedges of continents
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POPULATION POPULATION DENSITYDENSITY
Subway in Taiwan
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III. POPULATION DENSITYIII. POPULATION DENSITYA. It’s the # of people living per square A. It’s the # of people living per square
mile - mile - Canada=8 NYC=55,423Canada=8 NYC=55,423
B. People crowd into areas favorable to B. People crowd into areas favorable to settlementsettlement
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CARRYING CAPACITYCARRYING CAPACITY
# of living things a piece of land # of living things a piece of land can supportcan support
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DETERMINING FACTORSDETERMINING FACTORSFertility of landFertility of landFarming technologyFarming technologyAccess to fresh waterAccess to fresh water
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EXCEEDING CARRYING EXCEEDING CARRYING CAPACITYCAPACITY
“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 EXCEEDING CARRYING CAPACITY -FUTURE PROBLEMS-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 migrationMass migration