Overpopulation - PowerPoint PPT Presentation

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Overpopulation

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Overpopulation Find your animal ... women not having a say in how many kids to have Impacts-Food Supply UN study shows that 65 countries population is growing faster ... – PowerPoint PPT presentation

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Title: Overpopulation


1
Overpopulation
2
History
  • 10 000 years ago there where only 5 million
    people on Earth
  • Today there are over 7 billion!
  • All of these people need to be fed, clothed and
    housed
  • This leads to many issues

3
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4
Population Trends
  • Population growth is very slow or has stopped in
    North America, Europe and Japan
  • The Earth is still gaining 78 million ppl a year!
  • Most of this is occurring in West Asia and Sub-
    Saharan Africa
  • What country is predicted to surpass China as the
    worlds most populous in the next 30 years?

5
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6
Causes
  • High birth rate/Low death rate - better health
    care has resulted in fewer babies dying at birth
    and less people dying in the population.
  • Expensive Birth Control (years supply in
    Ethiopia costs 40 average wage is 120/year)
  • Social security no welfare, unemployment, or
    retirement plans parents rely on kids to take
    care of them when they retire
  • Religion according to Hindu tradition, funeral
    fire must be lit by a son
  • Son Mania families favoring a son because
    womens family must pay a dowry
  • Unequal treatment of women women not having a
    say in how many kids to have

7
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8
Impacts of a Growing Population
  • Food Supply
  • Fresh Water
  • Forests/Environment
  • Poverty
  • Reliance on the Developed World

9
Impacts-Food Supply
  • UN study shows that 65 countries population is
    growing faster than their food supply
  • Less land available to farm
  • 2 Billion hectares of arable land has been
    degraded
  • Size of Canada and USA

10
Fresh Water
  • Fresh water supply is finite
  • Demand is increasing with higher populations and
    higher per capita usage
  • Unclean water/poor sanitation kill 12 million ppl
    a year
  • By 2025 the worlds population is projected to be
    8 billion..3 billion of which may face water
    shortages

11
Forests
  • Nearly half of the worlds original forest cover
    has been lost

12
Poverty
  • Standard of living in countries with out of
    control birth rates is often very low

13
Poverty
  • 22 ooo children die each day due to poverty
  • Gap between rich and poor is widening
  • poorest 40 percent of the worlds popn accounts
    for 5 of global income. The richest 20 percent
    accounts for 75

14
Reliance on Developed World
15
Reliance on Developed World
  • Canada sends 420 ooo tons of food aid to
    countries in need
  • This is only 5 of the total food being sent as
    aid world wide

16
Resource Depletion
  • More people consuming more resources being
    usedfuture shortages?
  • This will impact everyone in the world not just
    the poor!

17
It is estimated that we would need five planets
if everybody lived like us
18
In your groups, come up with 1 solution you feel
would help elevate overpopulation. Write your
answer along with why on your white boardYou
have 10 minutes
19
You have 3 votes. Place a star on 3 different
boards that you feel are the best 3.
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