2. Introduction
In this work we will talk about overpopulation, on
its causes and consequences and what we can all do
so that we can correct this problem.
3. What is Overpopulation?
Overpopulation occurs if the number of people in a
group exceeds the carring capacity of a region
occupied by that group. Overpopulation can be
viewed to as existing when there is no resources to
give support to the population.
4.
5. The problem of overpopulation only began after
the Industrial Revolution but deteriorated after
1950. Currently the population continues to grow at
a very high pace and it is estimated that in 2040 the
world population will be 9 billion.
This problem affects most developing countries,
mainly in Africa and Asia, where is concentrated
most of the world's population
6.
7. The population greatly increased after the Industrial
Revolution because it was also at this time that there
have been great advances in medicine, enabling
newborns survive resulting in a significant increase of
the population. Before these changes seven out of
every 10 newborns died and today 95% of newborns
will reach adult age.
8. What are the causes?
- Improved medicine, sanitation, and nutrition
have produced a major decline in death rates,
particularly in the last century;
- Birth rates have declined much more slowly;
- In many countries, the degraded status of
women is another contributing factor to high
birthrates. Women are often denied
opportunities for education, employment and
governmental service.
9. As a result, they have few alternatives to their
childbearing roles;
- Following adoption of basic technology that
improved living conditions, death rates plunged
dramatically.
10. What are the effects?
- As human population increases, the diversity
and number of plants and animals decreases.
We lose one or more entire species of animal or
plant life every 20 minutes – 27,000 species a
year. This is a rate and scale of extinction
greater than any in the last 65 million years;
11. - Desflorestation;
- Global carbon dioxide emissions have quadrupled
since 1950, largely from deforestation and the burning
of fossil fuels.
12.
13. Conclusion
With this work we conclude that overpopulation is
a serious problem that is there today and that we
must all help to improve this situation.
