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Rapid population growth
- Population growth was slow
until the start of the 19th
- The worlds population took thousands
of years to get to 1 billion (1804)
- It took 123 years to reach 2 billion
- Reached 3 billion in another 33 years
- By the end of the 20th century
it had doubled to 6 billion
- It only took 11 more years to get to 7 billion
- Experts think global population
will stabilise at 9.5 billion by 2050
- Natural increase - population grows when
the birth rate is higher than the death rate
- Medical progress lowers the birth rate
- Primary healthcare - preventing
disease e.g. immunisation
- Secondary healthcare -
treatment of illnesses
- Primary healthcare - preventing
disease e.g. immunisation
- These social, economic and political
factors keep the birth rate high
- Social
- Family planning is not widely used
- Women receive little
education and marry young
- Families of five or more
children are considered normal
- Family planning is not widely used
- Economic
- Children work to
support the family
- Parents rely on their
children in old age
- Children work to
support the family
- Political
- Governments do not
provide family planning help
- Religions may not
approve of birth control
- Governments do not
provide family planning help
- Social
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