Challenges of overpopulation by dffhrtcv3

VIEWS: 36 PAGES: 15

									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.
   Flashcard
       13.3

Because competition
  for resources is
       greater,
  overpopulation

puts servere stress
      on 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.
A good idea or a bad idea?


                             Click for Quiz
        Ch 13 EQ           pg 1 of 4

1. Industrialized     A.Increase in population
   societies          B.Increased energy use
2. Arithmetic         C.1,2,3,4
3. Begin to develop   D.1,2,4,8
   farming            E.Emigration
                      F.Agricultural revolution
4. Increase in food
       Ch 13 EQ           pg 2 of 4

5. Germ theory      A. Increase in population
                    B. More health problems
6. Disease, famine,
                    C. Decrease in population
   war
                    D. Immigration
7. Moving in        E. Emigration
8. Moving out       F. Science of vital
                       statistics
        Ch 13 EQ               pg 3 of 4

9. Demography              A. Increase in population
10.Carrying capacity       B. Greater stress on
                              environment
11.Overpopulation
                           C. Decrease in population
12.Industrial revolution   D. Sometimes opposed
                           E. May be increased by
                              future technology
                           F. Science of vital statistics
            Ch 13 EQ               pg 4 of 4

13.   Limiting family size    A. Increased energy use
14.   Geometric               B. More health problems
15.   Industrial revolution   C. Sometimes opposed
16.   Overpopulation          D. May be increased by
                                 future technology
                              E. 1,2,3,4
                              F. 1,2,4,8
               Don’t Click
           Quick Quiz Yet!                 QQ13
1. Geometric                  A. Increase in population
2. Arithmetic                 B.Increased energy use
3. Begin to develop farming   C.Greater stress on
4. Increase in food              environment
5. Industrial revolution      D.More health problems
6. Germ theory                E. Decrease in population
7. Disease, famine, war       F. Sometimes opposed
8. Moving in                  G.May be increased by future
9. Moving out                    technology
10.Demography                 H.1,2,3,4
11.Industrialized societies   I. 1,2,4,8
12.Overpopulation             J. Immigration
13.Limiting family size       K.Emigration
14.Carrying capacity          L. Agricultural revolution
                              M.Science of vital statistics
               Flashcards
      13.3                     13.3

  Limiting family             Z.P.G.
size is sometimes
     opposed


 for religious or             Zero
 ethical reasons            Population
                             Growth
   Flashcard
        13.3

 future technological
such as improved use
    of solar power


   will reduce the
use of nonrenewable
     resources

								
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