POPULATION GEOGRAPHY
Tokyo-How would you be different? metro=35 million
Mumbai, India-20 million-60,000 per sq mile
St Thomas
WORLDWIDE POPULATION GROWTH 80 Million a year 220,000 per day 80 Million a year 220,000 per day
WHY? WELL…. More food grown More food grown Better food grown Better food grown Better sanitation Better sanitation Modern medicine Modern medicine
CALCULATING POPULATION GROWTH Birth Rate – Death Rate = growth rate
POPULATION PYRAMIDS Shows age/sex distribution of a population Shows age/sex distribution of a population
WHY SHOULD I CARE? YOUR FUTURE IS AT STAKE OVERPOPULATION!! OVERPOPULATION!! 12 BILLION BY 2050
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?
POPULATION DENSITY, DISTRIBUTION, & MOVEMENT
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
POPULATION DENSITY Subway in Taiwan
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
CARRYING CAPACITY # of living things a piece of land can support # of living things a piece of land can support
DETERMINING FACTORS Fertility of land Fertility of land Farming technology Farming technology Access to fresh water Access to fresh water
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)
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