1. The World Population Growth
Unit 3
The World Population Growth

2. What are we going to learn?
patterns
General information and trends in the world’s population
Population terms and what they mean
Singapore’s population trends

3. 6,972,760,419
on Jul 10, 2012
6,901,797,878 on Jul 21, 2011
6,830,436,817 on Jul 21, 2010
Do you notice a trend in the world’s population every year?
What will the world’s population be in 2013?

4. + YEAR POPULATION DIFFERENCE 2013 2012 6,972,760,419 2011
6,901,797,878
70,962,541
2010
6,830,436,817
71,361,061
2009
6,758,530,481
71,906,336
7,043,760,419 +
6,972,760,419
71,000,000
7,043,760,419 =

5. World Population
Why is it difficult to estimate the actual world population?
Some countries do not have proper population consensus
Why?

7. Trends in World Population Growth
Before 1800 – slow growth
After 1800 – faster growth
Since 1990 – extremely fast
Base on this trend – the world population will hit 7 billion in 2020 and 9 billion in 2050

8. Variation in World Population Growth Rate
Growth rate has fallen but total population increases
Different regions of the world grow at different rates
Africa – highest
North America, South America and Oceania – low
Europe – negative
China - stable

10. .. so that she can have another child with her new husband without breaking the population law.

12. Population terms and what they mean

13. Death rates Immigration rates Birth rates
Factors Affecting Population Of A Country
Death rates
Immigration rates
Birth rates

14. Population Growth Rate
Birth rate (BR) is the number of live births per 1000 people per year
Death rate (DR) is the number of deaths per 1000 people per year

15. Increase in population when birth rate is higher than death rate.

16. What is migration?
Migration refers to the movement of people from one area to settle in another area.
Usually to work or study for a period of time.
Does not apply to tourists.

17. Population Growth Rate
A country population growth rate
(Birth Rate – Death Rate) + net migration rate
Migration refers to the movement of people from one area to settle in another area
Net migration refers to the difference between the no. of people coming (immigrants) and no. of people leaving (emigrants) the country per 1000 people

18. Population will increase if:
No of births is higher than no of deaths: Birth Rate > Death Rate
No of immigrants is higher than no of emigrants: Immigrant rate > Emigrant rate

19. Population Growth Rate
(Birth Rate - Death Rate) Net Migration Rate
Population
Growth Rate
(of a country) =

20. Country A Population: 2 000 000 Deaths per year: 10 000
Births per year:
Immigrants per year: 1 000
Emigrants per year: 500
What is the country’s population growth rate?

21. Population Growth Rate
20 000
Birth rate: X
1 000 = 10
10 000
Death rate: X
1 000 = 5
Net migration:
1 000 – 500 =
500
500 X
1 000
0.25
Net migration rate: =
Population
Growth Rate
(of Country A)
(Birth rate - Death rate) + Net Migration Rate =
The population will increase 10 5
0.25
= 5.25

22. Country A = 5.25 Population: 2 000 000 Deaths per year: 10 000
Births per year:
Immigrants per year: 1 000
Emigrants per year: 500
What is the country’s population growth rate?
= 5.25

23. Country B Population: 4 000 000 Deaths per year: 40 000
Births per year:
Immigrants per year: 1 500
Emigrants per year: 1 000
What is the country’s population growth rate?

24. Population Growth Rate Country B
30 000
Birth rate: X
1 000 =
7.5
40 000
Death rate: X
1 000 = 10
Net migration:
1 500 – 1 000 =
500
500 X
1 000 =
0.125
Net migration rate:
Population
Growth Rate
(of Country B)
(Birth rate - Death rate) + Net Migration Rate =
The population will decrease
7.5 10
0.125
= - 2.4

25. Country B = - 2.4 Population: 4 000 000 Deaths per year: 40 000
Births per year:
Immigrants per year: 1 500
Emigrants per year: 1 000
What is the country’s population growth rate?
= - 2.4

26. Country C Population: 4 500 000 Deaths per year: 15 000
Births per year:
Immigrants per year: 1 000
Emigrants per year: 1 000
What is the country’s population growth rate?

27. What is the country’s population growth rate?
Zero

28. Population Growth Rate Country C
15 000
Birth rate: X
1 000 =
3.3
15 000
Death rate: X
1 000 =
3.3
Net migration:
1 000 – 1 000 = X
1 000 =
Net migration rate:
Population
Growth Rate
(of Country C)
(Birth rate - Death rate) + Net Migration Rate =
The population remains the same
3.3
3.3
= 0

29. Zero Population Growth
BR = DR and has zero net migration rate
What type of population growth rate is Singapore experiencing?

30. Looking at Singapore in detail

31. Singapore’s Population
5.1 million – 3.7 millions are citizens and permanent residents.
1.4 million are foreigners
The sex ratio 1.8 million males per and 1.9 million females in 2010.
Chinese (74.7%), Malays (13.6%), Indians (8.9%), Eurasians, Arabs, Armenians, Jews, Europeans, Peranakans and other groups (2.8%).
Based on 2010 figures

32. Singapore Population Trend
Year
Total Population ('000)
Singapore Residents ('000)
Non-S’poreans (‘000)
1990
3,047.1
2,735.9
311.2
2000
4,027.9
3,273.4
754.5
2008
4,839.4
3,642.7
1,196.7
2011
5,183.7
3,789.3
1,394.4

33. Singapore Population Trend

35. Looking At Population Pyramids

36. What is a population pyramid?
A graphic representation. . .
What does it show?
showing number or portion of males and females in each age categories in a population.

37. Non-working population Non-working population
Rapid Growth
Non-working population
Working population
Non-working population

38. Slow Growth

39. Negative Growth

40. Singapore’s Population Pyramid

42. INFANT MORTALITY RATE
Number of live infants reaching 1 year old per population

43. End