Human Populations Section #2: Changing Population Trends Infrastructure • the basic facilities & services that support a community • Example = hospitals, roads, subways, schools, sewer.
Download ReportTranscript Human Populations Section #2: Changing Population Trends Infrastructure • the basic facilities & services that support a community • Example = hospitals, roads, subways, schools, sewer.
Slide 1
Human Populations
Section #2:
Changing Population Trends
Slide 2
Infrastructure
• the basic facilities & services
that support a community
• Example = hospitals, roads,
subways, schools, sewer lines,
power plants, public water
supply, etc.
Slide 3
Infrastructure
• rapidly growing populations
can quickly overwhelm the
infrastructure which can lead
to various environmental
problems to the land, water, &
air, overcrowding, & suburban
sprawl
Slide 4
Rapid Growth
• people are using resources
faster than the environment
can replace them
• vegetation, water & land are
the most critically affected
Slide 5
Rapid Growth
Slide 6
Fuelwood
• in the poorest countries, wood is
still the main fuel source
• when population size is low, people
can use fallen tree limbs called
deadwood
• when population size grows, the
need for fuel increases to the point
where people begin to cut down
living trees
Slide 7
Shortage of Fuelwood
Slide 8
Unsafe Water
• one main use for fuelwood is
for boiling/sterilizing water for
drinking, cooking, cleaning, &
bathing
• over 1 billion people across the
world lack safe drinking water
which can spread diseases like
dysentery, typhoid, & cholera
Slide 9
Areas like the Rio Grande River (US/Mexico
border) have no sewage or water treatment &
use the river for everything
Slide 10
Arable Land
• land that can be used to grow
crops
• countries experiencing growth
are having shortages of arable
land
Slide 11
Egypt
• most of the country is desert
• less then 4% is arable (narrow strip
along the Nile)
• but this is also where the jobs are
& where most people want to live
• building & development for more
people means losing more arable
land
Slide 12
Limited Arable Land in Egypt
is Becoming More Limited
Slide 13
Urbanization
• worldwide trend where more
people are moving to the cities
from the rural areas
• cities become overcrowded,
resources are scarce, population
density increases which can lead
to easier spread of diseases,
infrastructure is inadequate
Slide 14
Suburban Sprawl
• big problem in the U.S. where
people want to work in the city
(more jobs, better jobs, better
salaries) but want to live in the
suburban areas (nice place to
raise the family, less crime,
lower prices)
Slide 15
Suburban Sprawl
Slide 16
Categorizing Countries
• not every country in the world
progresses through the stages
of the demographic transition
at the same rate or according to
the model’s predictions
Slide 17
Categorizing Countries
• most developed
• more developed
• developed
• less developed
• least developed
Slide 18
Least Developed Countries
• show few to no signs of
development
• death rates are increasing, plus
birth rates are high
• given priority for foreign aid &
development programs by the
United Nations
Slide 19
Crowded & Polluted City
Bangkok, Thailand
Slide 20
Managing Population Growth
• Some countries (China, Thailand, India
for example) have created campaigns to
reduce the fertility rates of their
citizens in an attempt to slow population
growth
• Some campaigns include public
advertisements (billboards, magazines,
newspapers), family planning programs,
economic incentives, or legal
punishments
Slide 21
Worldwide Trends in Fertility
Slide 22
ICPD
• the United Nations held the
International Conference on
Population & Development in 1994
• debates were held about the
relationships between population,
development, & the environment
• mainly want to create a plan for
stabilizing population growth
Slide 23
ICPD Goals for 2015
• provide universal access to safe &
reliable family-planning methods &
related reproductive health services
• reduce infant & child mortality rates
• reduce maternal mortality, especially
in developing countries
• increase life expectancy to 75 years
• ensure universal access to education
(both primary & secondary) for girls
Slide 24
The Reality
• current worldwide population > than 6
billion (& still increasing)
• growth is slowing down
• most countries are moving to having
replacement level fertility rates which
means population growth would
eventually stop
• projected world population in 2050 =
9 billion
Human Populations
Section #2:
Changing Population Trends
Slide 2
Infrastructure
• the basic facilities & services
that support a community
• Example = hospitals, roads,
subways, schools, sewer lines,
power plants, public water
supply, etc.
Slide 3
Infrastructure
• rapidly growing populations
can quickly overwhelm the
infrastructure which can lead
to various environmental
problems to the land, water, &
air, overcrowding, & suburban
sprawl
Slide 4
Rapid Growth
• people are using resources
faster than the environment
can replace them
• vegetation, water & land are
the most critically affected
Slide 5
Rapid Growth
Slide 6
Fuelwood
• in the poorest countries, wood is
still the main fuel source
• when population size is low, people
can use fallen tree limbs called
deadwood
• when population size grows, the
need for fuel increases to the point
where people begin to cut down
living trees
Slide 7
Shortage of Fuelwood
Slide 8
Unsafe Water
• one main use for fuelwood is
for boiling/sterilizing water for
drinking, cooking, cleaning, &
bathing
• over 1 billion people across the
world lack safe drinking water
which can spread diseases like
dysentery, typhoid, & cholera
Slide 9
Areas like the Rio Grande River (US/Mexico
border) have no sewage or water treatment &
use the river for everything
Slide 10
Arable Land
• land that can be used to grow
crops
• countries experiencing growth
are having shortages of arable
land
Slide 11
Egypt
• most of the country is desert
• less then 4% is arable (narrow strip
along the Nile)
• but this is also where the jobs are
& where most people want to live
• building & development for more
people means losing more arable
land
Slide 12
Limited Arable Land in Egypt
is Becoming More Limited
Slide 13
Urbanization
• worldwide trend where more
people are moving to the cities
from the rural areas
• cities become overcrowded,
resources are scarce, population
density increases which can lead
to easier spread of diseases,
infrastructure is inadequate
Slide 14
Suburban Sprawl
• big problem in the U.S. where
people want to work in the city
(more jobs, better jobs, better
salaries) but want to live in the
suburban areas (nice place to
raise the family, less crime,
lower prices)
Slide 15
Suburban Sprawl
Slide 16
Categorizing Countries
• not every country in the world
progresses through the stages
of the demographic transition
at the same rate or according to
the model’s predictions
Slide 17
Categorizing Countries
• most developed
• more developed
• developed
• less developed
• least developed
Slide 18
Least Developed Countries
• show few to no signs of
development
• death rates are increasing, plus
birth rates are high
• given priority for foreign aid &
development programs by the
United Nations
Slide 19
Crowded & Polluted City
Bangkok, Thailand
Slide 20
Managing Population Growth
• Some countries (China, Thailand, India
for example) have created campaigns to
reduce the fertility rates of their
citizens in an attempt to slow population
growth
• Some campaigns include public
advertisements (billboards, magazines,
newspapers), family planning programs,
economic incentives, or legal
punishments
Slide 21
Worldwide Trends in Fertility
Slide 22
ICPD
• the United Nations held the
International Conference on
Population & Development in 1994
• debates were held about the
relationships between population,
development, & the environment
• mainly want to create a plan for
stabilizing population growth
Slide 23
ICPD Goals for 2015
• provide universal access to safe &
reliable family-planning methods &
related reproductive health services
• reduce infant & child mortality rates
• reduce maternal mortality, especially
in developing countries
• increase life expectancy to 75 years
• ensure universal access to education
(both primary & secondary) for girls
Slide 24
The Reality
• current worldwide population > than 6
billion (& still increasing)
• growth is slowing down
• most countries are moving to having
replacement level fertility rates which
means population growth would
eventually stop
• projected world population in 2050 =
9 billion