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Human population growth

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Human population growth Human population growth In the United States and developed countries, the current growth rate is _____ Human population growth In the United ... – PowerPoint PPT presentation

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Title: Human population growth


1
Human population growth
2
Human population growth
  • In the United States and developed countries, the
    current growth rate is ________

3
Human population growth
  • In the United States and developed countries, the
    current growth rate is very low

4
Human population growth
  • In the United States and developed countries, the
    current growth rate is very low
  • In some developing countries, the human
    population growth is nearly _______

5
Human population growth
  • In the United States and developed countries, the
    current growth rate is very low
  • In some developing countries, the human
    population growth is nearly 3 people per second

6
Human population growth
  • In some developing countries, the human
    population growth is nearly 3 people per second
  • Because of this, the human population is well on
    its way to reaching ____________ in your lifetime

7
Human population growth
  • In some developing countries, the human
    population growth is nearly 3 people per second
  • Because of this, the human population is well on
    its way to reaching 9 billion in your lifetime

8
Human population growth
9
Human population growth
  • For most of human existence, the population grew
    ______

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
10
Human population growth
  • For most of human existence, the population grew
    slowly

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
11
Human population growth
  • About 500 years ago, the population began growing
    more rapidly because life was made easier by
    advances in _______ , ______ , and _______.

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
12
Human population growth
  • About 500 years ago, the population began growing
    more rapidly because life was made easier by
    advances in agriculture, industry, and medicine

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
13
Human population growth
  • With these advances, the human population
    experienced ____________

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
14
Human population growth
  • With these advances, the human population
    experienced exponential growth

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
15
Human population growth
  • Human population cannot keep growing
    exponentially forever because

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
16
Human population growth
  • Human population cannot keep growing
    exponentially forever because Earth and its
    resources are limited.

Human population growth
Industrial Revolution begins
Agriculture begins
Bubonic plague
Plowing And irrigation
17
Human population growth
18
  • nonrenewable resources -

19
  • nonrenewable resources resources that are used
    faster than they are formed.
  • Examples -

20
  • nonrenewable resources resources that are used
    faster than they are formed.
  • Examples oil, coal, natural gas

21
  • renewable resources -

22
  • renewable resources resources that cannot be
    used up or can be replenished over time faster
    than they are used up
  • examples -

23
  • renewable resources resources that cannot be
    used up or can be replenished over time faster
    than they are used up
  • examples wind energy, solar energy, drinking
    water, lumber/paper

24
  • ecological footprint -

25
  • ecological footprint the amount of land
    necessary to produce and maintain enough food and
    water, shelter, energy and waste

26
  • ecological footprint the amount of land
    necessary to produce and maintain enough food and
    water, shelter, energy and waste
  • The size of an ecological footprint depends on a
    number of factors

27
  • ecological footprint the amount of land
    necessary to produce and maintain enough food and
    water, shelter, energy and waste
  • The size of an ecological footprint depends on a
    number of factors
  • amount and efficiency of resource use
  • Amount and toxicity of waste produced

28
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29
  • The average U.S. citizens ecological footprint
    covers an area larger than

30
  • The average U.S. citizens ecological footprint
    covers an area larger than 24 football fields.

31
  • The average U.S. citizens ecological footprint
    covers an area larger than 24 football fields.
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