1. Population Connection
World Population
Population Connection

2. Video
In approximately what year did you begin to notice a large increase in population growth? What historical events, scientific advances or societal changes at that time period may have contributed to that population growth?
2. Were there any points in the film when you noticed slight decreases in population? If so, in what part(s) of the world did you notice decreasing population? What historical events in those time periods may have contributed to the population decreases?
3. In which time period did the most population growth occur? During that time period, which parts of the world experienced the most growth?
4. Are there any areas of the world which are likely to remain relatively unpopulated by the year 2030? Why would this be so?
5. Won’t advances in science and technology enable our planet to accommodate a growing population?

3. J-curve = reveals exponential growth
Year
1 AD
200
400
600
800
1000
1100
1200
1300
1400
1500
1600
1700
1750
1800
1850
1900
1950
2000
2050
Population (millions)
170
190
200
220
265
320
360
350
425
545
610
760
900
1,211
1,625
2,515
6,073
9,539
Graph the Data
Year = X axis
Population = Y axis
(I suggest doing in billions)
What kind of graph do you get?
J-curve = reveals exponential growth

4. $ 10,737,418.24 Day 39 Population Riddles
A father complained that his son’s allowance of $5 per week was too much. The son replied, “Okay, Dad. How about this? You give me a penny for the first day of the month, 2 cents for the next, 4 cents for the next, 8 cents for the next, and so on for every day of the month.” The father readily consented. Who was the more clever? What would the son’s allowance be on day 31?
Lily pads have started to grow in a 40-acre pond. The pads double in size each day and will take 40 days to cover the entire pond. On which day will the pads cover exactly half of the pond?
$ 10,737,418.24
Day 39

5. Earth: The Apple of our Eye
3/4 represents the oceans
1/8 represents inhospitable land (desert, swamp, polar, high elev.)
Leaves 1/8 for people to live
3/32 for areas too rocky, too wet, too cold, or poor soil to actually produce food; also cities, urban sprawl, etc.
Peel represents actual top soil
25 billion tons/yr lost to erosion & over farming
Nat. Geo: 7 Billion

6. Population Explosion
Earth is finite = all environments have a carrying capacity
Pop. growth cannot continue indefinitely
Can expand capacity with technology & $$
Ex: Japan ( capacity, land)
Limited by system’s ability to renew itself and/or safely absorb wastes
Critics of “we are overpopulated” say we can fit entire global population into state of Texas
BUT could the land actually sustain all these people? Will we have the tech. in time?

7. Population Distribution
What regions of the world have the 5 main population clusters?
East Asia, South Asia, Southeast Asia, Europe
NE US/ SE Canada & West Africa
What regions of the world are sparsely populated? (5 too’s)
Deserts, rainforests, polar areas, high elevations
Nat Geo: Are You Typical?

8. Population Distribution
90% live N of Equator
Land distribution is a factor
1/2 live on 5% of land; or 9/10 on less than 20%
Over half now in cities
Most live close to sea level
Most arable land, closest to waterways
2/3 live w/in 300 miles of ocean

11. Densities Arithmetic Physiological
Total population/ total land area
Compares # of ppl trying to live in an area
Physiological
Total population/ total arable land area
the p.d., the pressure on land
The difference b/w the two can indicate capacity to meet needs

14. Densities Agricultural Comparing Densities
Total # of farmers/ total arable land area
Can indicate economic differences
MDC’s have low ag. dens b/c of better technology  work more in service industry
Comparing Densities
See Table 2-1 (pg 53)

17. Population of the world split into equal sections of one billion.

18. Baby-O-Matic
Family Life: status of woman in household, ability to make decisions
Education: More educ = fewer children, esp. for women
Social Security: need more kids if no way to support themselves in old age
Status Symbol: Large families can be seen as impt to culture; others, it’s personal success

19. Baby-O-Matic
Time & $ Management: children are a drain on parents in some areas; an economic asset in others
Health: with high chance of IM, ppl will have more kids as “insurance”
Personal Beliefs: Society says if lg. or sm. is good; what shape is society in?
Timing: Longer you wait = fewer kids; career minded ppl have fewer kids

20. Natural Increase Rates
Fig. 2-10: The natural increase rate (NIR) is the percentage growth or decline in the population of a country per year (not including net migration). Countries in Africa and Southwest Asia have the highest current rates, while Russia and some European countries have negative rates.

21. Crude Birth Rates
Fig. 2-11: The crude birth rate (CBR) is the total number of births in a country per 1,000 population per year. The lowest rates are in Europe, and the highest rates are in Africa and several Asian countries.

22. Total Fertility Rates
Fig. 2-12: The total fertility rate (TFR) is the number of children an average woman in a society will have through her childbearing years. The lowest rates are in Europe, and the highest are in Africa and parts of the Middle East.

23. Infant Mortality Rates
Fig. 2-39: The infant mortality rate (IMR) is the number of infant deaths per 1,000 live births per year. The highest infant mortality rates are found in some of the poorest countries of Africa and Asia.

24. Life Expectancy at birth
Fig. 2-11: Life expectancy at birth is the average number of years a newborn infant can expect to live. The highest life expectancies are generally in the wealthiest countries, and the lowest in the poorest countries.

25. Crude Death Rates
Fig. 2-12: The crude death rate (CDR) is the total number of deaths in a country per 1,000 population per year. Because wealthy countries are in a late stage of the demographic transition, they often have a higher CDR than poorer countries.

26. PRB Data Sheets Place regional averages in the boxes
List the best and worst countries at the bottom be prepared to justify your choices

27. WORLD DATA More Devel: Less Devel 1: Less Devel 2: Least Devel:
IMF= 5 LE= 78 NIR= 0.1%
<15= 16% 65+= 16% GNI PPP= $33,460
Less Devel 1:
IMF= 45 LE= 68 NIR= 1.4%
<15= 29% 65+= 6% GNI PPP= $5,900
Less Devel 2:
IMF= 49 LE= 66 NIR= 1.7%
<15= 32% 65+= 5% GNI PPP= $5,380
Least Devel:
IMF= 72 LE= 59 NIR= 2.4%
<15= 41% 65+= 3% GNI PPP= $1,440

28. Population Reference Bureau
Go to and explore! There are various areas to get information from
Might be best to download the 2013 Data Sheet as a PDF
Answer the questions provided to get a sense of regional patterns.