World Issues 12
Population
Population Numbers
Current population of:
Canada?
United States?
Brazil?
Japan?
The World?
34 620 000
312 540 000
192 400 000
128 000 000
7 Billion
Fast Facts of Canada - (stats Canada)
• By 2034 Canada can reach anywhere between 40 and 47 million people.
•Life expectancy of a new born in Canada for a male is 78; girl 83.
• In 2006, nearly 80% of Canadians were living in urban areas.
• 2001 to 2006, seniors
increased by 11.5% while
children declined by 2.5%
(under 15).
Canada – Stats Canada
http://geodepot.statcan.ca/Diss/Hig
hlights/Page3/AnimatedMap_e.cfm
World Fast Facts
1.
2.
3.
Every second 5 people are born and 2 people die.
About half of the population are under age 25.
1 in 10 people lived in cities in 1900. By 1994 that figure had grown to 1 in 2.
Christian (33%) and Muslim (22%) are the most practised religion
Arabic, Chinese, English, French, Spanish, and Russian are the mother tongue or
Second language for about half of the world`s population.
As of 2009, the median age of the world was 28.4 years.
Important Population Definitions
Demography – the study of population and its’ changes and patterns.
Population Density – the average number of people per square kilometre.
Population Growth Rate – in %, refers to the speed at which a population
grows per year. (ie. World = 1.092%)
Birth rate – refers to the number of live births in a country per 1000
population per year. (ie. World = 19.12/1000)
Death Rate – refers to the number of deaths in a country per 1000
population per year. (ie. World = 8.12/1000)
Natural Increase – birth rate higher then death rate.
Natural Decrease – death rate higher then birth rate.
Infant Mortality Rate - # of infant deaths per 1000 live births.
(World is at 41.61/1000 live births.)
Definitions Continued
Doubling Time - # of years required for a population to double.
Overpopulation – condition where organism’s numbers exceed the
carrying capacity of its habitat. Most commonly refers to the
relationship between human population and its environment.
Dependency load – The ratio of people under 15 and over 65 in any
population, most commonly shown to reveal the strain on
the working class.
Population Momentum – When the rates of growth are expected to
decline but the actual population members continue to grow.
Why is this happening in Canada?
Carrying capacity – the max number of people that a habitat can
support.
Total fertility rate – The average number of children each women
will have in her lifetime.
Hans Rosling on global population growth
• Swedish medical doctor
• discovered konzo, a paralytic disease
• Academic and public speaker
• co-founded Gapminder Foundation
http://www.ted.com/talks/hans_rosling_on_gl
obal_population_growth.html
Demographic Transition Model
Stage 1
Stage 2
High Stationary
Early expanding
(Egypt, India)
•High birth rates and
low death rates.
•High birth rates and
death rates.
•Population growth
rates are stable.
•Not many countries
are at this stage
anymore.
Population
explosion due to
natural increase.
The concern is the
growing population
in the developing
world and the
impact on
environment.
Stage 3
Stage 4
Stage 5
Late Expanding (Brazil)
Low Stationary (USA,
France, Japan, UK)
5th Date
Low death rates and
rapidly declining birth
rates.
Birth rates have fallen so
population growth is low.
Birth rates drop below the
death rate.
Period of greatest natural
increase.
Most developed nations
fall into this stage.
The population at this
stage is growing older.
Families still remain large
due to the need for
support for the elderly.
What has influenced this
stage has been the
changing role of women,
the use of contraceptives
and a increase in the cost
of living.
Many European nations
are currently entering this
stage.
Improved medical care,
fewer children needed.
Good family planning and
good health.
Demographic Transition Model
Demographic Transition Model Activity
• Use this template to fill out the DTM.
• The DTM has three lines: Birth rate,
Death rate, and Natural Increase.
Label the stages and the two axis.
Identify the three lines on the bottom
right hand corner.
Use the finished product as a study
guide for your population test.