C H. 13 – P OPULATION : C ANADA AND THE W ORLD Social Studies 11 Ms. Shrieves

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

W HAT DO YOU THINK ?

W ORLD P OPULATION G ROWTH Hans Rosling on Global Population Growth Video Why would there have been a rapid growth in population in the twentieth century?

D EMOGRAPHY Demography : The statistical study of human populations Helps to understand the causes and consequences of population change Why is demography important? 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.

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

L IMITATIONS OF THE C ENSUS 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.

D EVELOPED C OUNTRIES Have highly developed economy Citizens have the highest standard of living in the world High levels of literacy, health services, and food supplies

D EVELOPED

D EVELOPING C OUNTRIES An economy that depends more on primary industries. Citizens have lower standard of living than those in developed countries Usually highly indebted.

D EVELOPING

L EAST D EVELOPED C OUNTRIES Given to those who have exhibited the lowest levels of socio-economic development Very much indebted to developed countries. Political unrest.

L EAST D EVELOPED

P OPULATION R ATES 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)

P OPULATION R ATES Crude Birth Rate = Number of births in one year Population X 1000 Crude Death Rate = Number of deaths in one year PopulationX 1000 Rate of Natural increase = Deaths – Births

T HE R ULE OF S EVENTY ParentsChild A1234Child B5678Child C Child D Exponential rate of increase: a rapid rate of increase as each generation doubles in size. - “Rule of Seventy” states that doubling time is approximately equal to 70 divided by the growth rate (%) per year. - Doubling Time: The number of years it takes a country to double its population at its current birth rate.