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Online Geography Resources

 

Population Growth

 
Geography Starter

Starter

 
You have got 1 minute to decide what the world population will be at the end of the lesson! The person with the closest amount gets a prize .
 
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Geography Activities

Activities

 
 
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Birth Rate
The average annual number of births during a year per 1,000 persons in the population at midyear; also known as crude birth rate. The birth rate is usually the dominant factor in determining the rate of population growth.
Death Rate
The average annual number of deaths during a year per 1,000 population at midyear; also known as crude death rate. The death rate, while only a rough indicator of the mortality situation in a country, accurately indicates the current mortality impact on population growth.
Natural Increase / Decrease The difference the birth rate and the death rate. If the birth rate is higher than the death rate the population will increase, therefore the population is in a state of Natural Increase. If the death rate is higher the birth rate the population will decrease, therefore the population is in a state of Natural Decrease.
 
Adapted from CIA World Factbook
 
CIA World Factbook - Barbados
 
Geography Review

Review

 
How many people could the earth's resources support? What is the 'carrying capacity' of the earth?
 

Carrying capacity is not a fixed number.

Estimates put Earth's carrying capacity at anywhere between 2 billion and 40 billion people.

If humans were still in the hunter-gatherer mode, Earth would have reached its capacity at about 100 million people.

If everyone on Earth lived like a middle-class American, consuming roughly 3.3 times the subsistence level of food and about 250 times the subsistence level of clean water, the Earth could only support about 2 billion people.

If everyone on the planet consumed only what he or she needed, 40 billion would be a feasible number.

 

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