Population Change

AS Geography

Learning Objectives

• What is human Geography• How and why population is increasing• How the rate of population growth varies

from place to place• Students will think how the rate of growth

may alter in the future• Students to consider the various factors

that may affect the rate of pop’n growth

Human Geography

• So far we have looked at Physical Geography about how the world is formed and the processes that help change the environment around it.

• This is just one sphere of Geography• The other discipline is Human Geography

which deals with how ‘we’ as people help to change and manipulate the world around us

Physical Geographer

Human Geographer

Population Geography

• The study of pop’n• Growth rates• Issues that are created by pop’n• Underpop’n, overpop’n, optimum pop’n• It’s important as the study of pop’n helps

us to predict problems and issues along with their impacts and providing measures to help.

In small groups work out how rapidly the population is growing and how rapidly land is being lost.

Date global pop’n Total Productive land (ha)

December 14th 2006 at 12.30 GMT

6,553,497,917 8,564,267,236

April 2008 6,659,341,191 8,558,624,885

Nov 5th 2009 10.00 GMT

6,776,888,163 8,552,358,630

What does this mean?

• It is obvious there is an issue• As Geographer we have to think carefully

so that we can take control of the situation by understanding the complex causes and possible outcomes.

World Pop’n growth since 1950

Growth from 10,000BC

Activity

• In groups think about these three diagrams and answer the following questions

1. Can this rate of growth continue?

2. Is the rate sustainable?

3. Could we say that the growth in the 20th century is unique and will not happen again?

4. From the graphs can you predict the pop’n over the next 50 to 100 yrs?

5. Can we use past trends to predict future growth?

So why is Population growing

• Within your grows try and come up with at least three reasons why you feel population might be growing, try to rank your answers in terms of importance to growth.

Growth

• Sustained growth has taken place since the 18th century

• The reasons for the remarkable growth is:• The Industrial revolution• Agricultural Revolution (Scientific

developments and improvements in transport)

• Medical advances• Improved hygiene• Shrinking of the globe – spread of

technology

Growth

• Demography is the study of the population structure.

• Demographers can define the main factors that can contribute to pop’n change

• Turn to page 159 and complete the Scatter graph for the population figures

• Why do you feel that growth rates change from place to place?

What Causes Population Change?

• Draw the graph on Page 162 and then highlight on it the various points mentioned on p. 161-162

Learning Objectives

What is human Geography How and why population is increasing How the rate of population growth varies

from place to place Students will think how the rate of growth

may alter in the future Students to consider the various factors

that may affect the rate of pop’n growth

And Finally....

• What methods do we use to measure population?