Challenges of Overpopulation

By: Keondra Holland and Traci Witcher!

12 slides – 4 flashcards

13.3 Challenges of Overpopulation

Objectives:

• Relate how overpopulation affects natural resources, energy demands, and biodiversity.

• Hypothesize how the availability of resources affects population growth

Affects of Overpopulation

• Rapid population growth directly affects the global ecosystem. Why?

• An increase in population places a greater demand on – the space needed to sustain large numbers of

people.– natural resources, such as minerals, fuels and

food.

Flashcard13.3

Because competitionfor resources is

greater, overpopulation

puts servere stresson the

environment

How Humans are Affected

• Human health problems– More crowding

•more contact among people •more illness• More disease related to

–malnutrition, –poor hygiene and –lack of medical facilities

Controlling Population Size

• Birth control – Large-scale efforts

• to educate people

• provide effective methods.

• Many factors contribute to people’s continuing desire to have children. – Religious opposition– Some people feel population sizes shouldn’t be

controlled– In some countries birth rate has fallen below the rate of

replacement

Is Technology the Answer

• Advances in technology have the potential to increase the resources available to humans. – New sources of renewable energy, – New strains of crops developed through genetic

engineering– Other scientific breakthrough

• The agricultural and industrial revolutions both increased Earth’s Carrying capacity

• Future technology, such as increased use of solar power, may do it again.

Z.P.G.A good idea or a bad idea?

Click for Quiz

Ch 13 EQ pg 1 of 4

1. Industrialized societies

2. Arithmetic

3. Begin to develop farming

4. Increase in food

A.Increase in populationB.Increased energy useC.1,2,3,4D.1,2,4,8E.EmigrationF.Agricultural revolution

5. Germ theory

6. Disease, famine, war

7. Moving in

8. Moving out

A. Increase in population

B. More health problems

C. Decrease in population

D. Immigration

E. Emigration

F. Science of vital statistics

Ch 13 EQ pg 2 of 4

9. Demography

10.Carrying capacity

11.Overpopulation

12.Industrial revolution

A. Increase in population

B. Greater stress on environment

C. Decrease in population

D. Sometimes opposed

E. May be increased by future technology

F. Science of vital statistics

Ch 13 EQ pg 3 of 4

Ch 13 EQ pg 4 of 4

13. Limiting family size

14. Geometric

15. Industrial revolution

16. Overpopulation

A. Increased energy use

B. More health problems

C. Sometimes opposed

D. May be increased by future technology

E. 1,2,3,4

F. 1,2,4,8

Quick Quiz QQ13

1. Geometric2. Arithmetic3. Begin to develop farming4. Increase in food5. Industrial revolution6. Germ theory7. Disease, famine, war8. Moving in9. Moving out10.Demography11.Industrialized societies12.Overpopulation13.Limiting family size14.Carrying capacity

A. Increase in populationB.Increased energy useC.Greater stress on

environmentD.More health problemsE.Decrease in populationF. Sometimes opposedG.May be increased by future

technologyH.1,2,3,4I. 1,2,4,8J. ImmigrationK.EmigrationL.Agricultural revolutionM.Science of vital statistics

Don’t Click Yet!

Flashcards13.3

Limiting familysize is sometimes

opposed

for religious orethical reasons

13.3

Z.P.G.

ZeroPopulation

Growth

Flashcard13.3

future technological such as improved use

of solar power

will reduce theuse of nonrenewable

resources