POPULATION CANADA AND THE WORLD

Carrying Capacity

There are more than 6 billion human beings on Earth. According to the population estimates

released by the United Nations, the 6 billion mark was reached on October 12 1999. 

Every second five people are born and two people die, a net gain of three people.

World Population GrowthOur population has grown dramatically in recent decades:

2,000 years ago there were 300,000,000 people.

In 1800 we reached a population of 1 billion!

By 1900, we had grown to over 1.5 billion!

Today, there are approximately 6.7 billion people on earth!

World Population counts:1 China 1,298,847,6242 India 1,065,070,6073 United States 293,027,5714 Indonesia 238,452,9525 Brazil 184,101,109

Questions for Discussion1. Do you think increased population has a significant

impact on the way you live your life?2. What will the impact of this be on future

generations?

Population Distribution

This is why studying population is important!

The statistical study of population is known as demography.

Demography helps us to Understand population changesplan for things such as schools and hospitals

Make business decisions

Demography: Basic Vocabulary

Census: A way for governments to gather information about the population of a country.

Developed Country: A wealthy country with well developed infrastructure. People living here have a high standard of living.

Developing Country: A poor country with weak infrastructure. People living here have a low standard of living.

Ecological Footprint

Estimates how much productive land and water you need to support what you use and what you discard.

In other words it’s a measure of how much space you take up on the planet.

Calculating Population Change

In order to understand how a population is changing, we must be aware of three things:

How many people are born.How many people die.How many people move in or out of an area.

Crude Birth Rate (CBR)

This is calculated by dividing the number of births in one year by the total population and the multiplying the result by 1,000.

The result of this calculation is expressed as the number of babies born in one year for every 1,000 people living in the area.

Canada’s birth rate is approximately 11 per 1,000.

Other countries have birth rates as high as 50 per 1,000!

Crude Death Rate (CDR)

This is calculated by dividing the number of deaths in one year by the total population and the multiplying the result by 1,000.

The result of this calculation is expressed as the number of deaths in one year for every 1,000 people living in the area.

Canada’s death rate is approximately 8 per 1,000.

Other countries have death rates as high as 30 per 1,000!

World Death Rates

Rate of Natural Increase This is calculated by subtracting the death rate from the birth rate.

The result of this calculation is expressed as the % of growth in one year.

Canada’s rate of natural increase is births (11/1,000) minus deaths (8/1,000).

The result (3/1,000) when expressed as a percent, is 0.3%

Our population grows naturally by 0.3% every year.

Doubling TimeThis is calculated by using the following formula:

70 divided by the growth rate = doubling time

Since Canada’s growth rate is 0.3%, the calculation for us would look like this:

70 divided by 0.3 = 233

Result: Canada’s population should double in approximately 233 years.

The Effect of MigrationsPopulation increase in countries like Canada also depends on migration.

Immigration rate: number of people coming into an area in one year for every 1,000 people who already live there.

Emigration Rate: number of people leaving an area in one year for every 1,000 people who already live there.

Net Migration Rate: The difference between the Immigration rate and the emigration rate.