Understanding Global Population Growth and Its Implications

1. Ch. 13 – Population: Canada and the World Social Studies 11 Ms. Shrieves

2. Introduction • 1999 – The world had 6 Billion People (UN) • 2020: Estimated 7 Billion • What are the consequences of a rise in population? • Question being asked by these people? • Other side of the argument: • - Shortages in energy, housing and food, an increase in pollution, unemployment and the destruction of the environment. • At what point will the world’s resources fail to support it’s population • Technology will find ways to provide for increased # of people

3. What do you think?

4. World Population Growth • Why would there have been a rapid growth in population in the twentieth century? Hans Rosling on Global Population Growth Video

5. Demography • Demography: The statistical study of human populations • Why is demography important? • Helps to understand the causes and consequences of population change • Gives local, provincial and federal governments accurate statistics of population shifts Business like information about family size, incomes and consumer habits as they plan their marketing strategies

6. Census • Census:. • Canada conducts a detailed census The formal counting of people every ten years

7. Limitations of the Census • Difficult to keep track of people with no fixed address. • People may fear the authorities so not put down truthful information. • Illiteracy and poor communication networks undermine a nations ability to maintain accurate records. • In developing countries – data is much less accurate due to incomplete registration of births and deaths.

8. Developed Countries • Have highly developed economy • Citizens have the highest standard of living in the world • High levels of literacy, health services, and food supplies

9. Developed

10. Developing Countries • An economy that depends more on primary industries. • Citizens have lower standard of living than those in developed countries • Usually highly indebted.

11. Developing

12. Least Developed Countries • Given to those who have exhibited the lowest levels of socio-economic development • Very much indebted to developed countries. • Political unrest.

13. Least Developed

14. Population Rates • Three components of population change • 1. How many people are born • 2. How many people die, and • 3. How many people move in or out of an area (immigration or emigration)

15. Population Rates • Crude Birth Rate = Number of births in one year Population X 1000 • Crude Death Rate = Number of deaths in one year Population X 1000 • Rate of Natural increase = Deaths – Births

16. The Rule of Seventy -Exponential rate of increase: a rapid rate of increase as each generation doubles in size. - Doubling Time: The number of years it takes a country to double its population at its current birth rate. - “Rule of Seventy” states that doubling time is approximately equal to 70 divided by the growth rate (%) per year.

17. The effect of Migrations • Population increase in some countries (esp. Canada) depends on immigrants • Emigrants leave every year as well, which will affect the demography. • Immigration Rates: Rates at which people immigrate to a country usually based at the number of people per thousand who enter a country. • Emigration Rates: The rate at which people emigrate, usually based on the number of people per thousand who leave a country • Net Migration rate: Difference between immigration and emigration rates.

18. Why do people migrate to Canada? • Most immigrants to Canada come as economic migrants from developing nations, wanting to better their standard of living. • Others come as refugees seeking to escape persecution in their home country.

19. Miniature Earth Video

20. Homework: • Textbook Page 322: #2 (a and b) and #3 • Read Page 322 – 328