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Population Geography

Population Geography. Introduction. What is Population Geography?. A division of human geography concerned with spatial variations in distribution, composition, growth, and movements of population. We currently have…. 7 BILLION PEOPLE on the planet. :-O.

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Population Geography

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  1. Population Geography Introduction

  2. What is Population Geography? • A division of human geography concerned with spatial variations in distribution, composition, growth, and movements of population.

  3. We currently have… 7 BILLION PEOPLE on the planet. :-O http://www.worldometers.info/world-population/

  4. Ecumene • Portion of the world’s land surface that is permanently settled by human beings. • 75% of people live on only 5% of the earth’s surface. • About 50% of people on the earth live in cities.

  5. Demography • The study of the patterns and rates of population change, including birth and death rates, migration trends, and evolving populations distributions. • Demographics= statistical characteristics of a population • Gender, age, race, disabilities, mobility, home ownership, employment status, location, etc.

  6. Population Geography= GEODEMOGRAPHY

  7. Linear Versus Exponential Growth How is our population growing?

  8. Doubling Time • Time period required for a population experiencing exponential growth to double in size completely. • At a 3% growth rate, the time it will take for a population to double is less than 25 years. • Growth rates currently exceed 3% in parts of sub-Saharan and tropical Africa, the Middle East, and Central America.

  9. Where is the population growing?

  10. Carrying capacity • Maximum number of people a region can reasonably sustain.

  11. Overpopulation • Occurs when a region exceeds its carrying capacity. This is difficult to measure because of changing technology and environmental issues that continually alter the carrying capacity.

  12. Overcrowded • Simply too many people but the carrying capacity has not been reached.

  13. Underpopulation • Measure that is difficult to pinpoint; occurs when a population size is below its carrying capacity and cannot sustain the economic development it has reached. • Trouble filling jobs and fulfilling responsibilities to society.

  14. Zero Population Growth • Proposal to end population growth through a variety of official and nongovernmental family planning programs. • Many activists in the more-developed countries believe overpopulation is the root cause of the world’s social and environmental problems.

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