1. Population Geography Chapter 5

2. How many people live here? http://opr.princeton.edu/popclock/

3. Where are the people? 1. China ~1.3 billion 2. India ~1.1 billion 3. U. S. ~310 million 4. Indonesia ~242 mil. 5. Brazil ~201 million 6. Pakistan ~177 million 7. Bangladesh ~158 million 8. Nigeria ~152 million 9. Russia ~139 million 10. Japan ~126 million

4. Cool Population Facts 3/5 (60%) of the world lives in Asia 1/5 (20%) of the world lives in China 90% of the world live in the Northern Hemisphere The world has 2.2 billion children (that’s 1/3 of the population)

5. Geographers also use population density— the average number of people living in an area. Population density includes size of its country, size of its population, and its environment.

6. Thinking Critically: Canada has a population density of 8 persons per square mile Bangladesh is 2,361 persons per square mile How would you explain this in terms of population density? Canada Bangladesh

7. Which countries have the highest population density?

8. Emigrants—people who leave a country to live somewhere else (EXIT) Immigrants—people who come into a new country to live (INTO)

9. What does the future hold? 1804: World reaches 1 billion 123 years later… 1927: World reaches 2 billion 33 years later… 1960: World reaches 3 billion 14 years later… 1974: World reaches 4 billion 13 years later… 1987: World reaches 5 billion

10. 1999: Population reaches 6 billion It is estimated that we will hit 7 billion in 2012 (now it will be Oct. 2011) 8 billion by 2025 And 9 billion by 2050

11. 7 Billion, National Geographic Magazine - YouTube 7 Billion: Are You Typical? -- National Geographic Magazine - YouTube

12. Thinking Critically Why has the world’s population exploded? Could large populations be a problem? Why?

13. Demographic Trends Population is dropping in Europe, Japan, Australia because birth rates have dropped.

14. Countries in Africa, Asia, and South America have exploding populations because of high birth rates.

15. Even though the United States has slightly lower birth rates, a high level of immigration has kept the population high.

16. How do you track population? Population pyramids—a bar graph that shows the percentage of males and females and age groups in a given country.

17. Purpose Pyramids are used to show whether a population is growing or declining; it also indicates the breakdown of gender and age

26. Create your own pyramid