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World Population Growth

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chizu chukwu

on 27 June 2014

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Transcript of World Population Growth

What are the underlying problems with overpopulation?
History and background
Solutions and Ethics
Estimated number of humans to ever live:
110 billion
0 A.D.- 300 million
1000 A.D.- 350 million
1600 A.D.- 600 million
1800 A.D.- 1 billion
1927 A.D.- 2 billion
1974 A.D.- 4 billion
1999- A.D.- 6 billion

Population through the years

Disease- Smallpox, Black Plague, cancer
Medicine- antibiotics, chemotherapy, vaccines
Wars- World Wars, civil wars
Technology- safer transportation, medical equipment, safer homes


What affects population?

Future population estimates

Can we solve the issue of population change ethically, or can we merely treat the symptoms?
Sterilization: This is the act of making human/ organism unable to reproduce. For example: in Nazi Germany 400,000 men and women were forcibly sterilized.
Abortion: This would be terminating a womans pregnancy, usually before the fetus is 24 weeks old.
Euthanasia: The deliberate act of killing someone, to relieve pain from an incurable disease.
Use of birth control?
Methods of Population Control
One Child Policy
CHINA: If this population continues to grow we may have to go back to China's 'One Child Policy'.

The Republic of China in 1949, officials counted 542 million total residents in a area slightly larger than the U.S. (Americans then numbered about 149 million.) So In 1979, the government instituted a one-child rule to curb China's population, which had ballooned to 975 million; official thinking was the country could not continue to provide for more people. This policy included practices such as: forced late-term abortions and involuntary sterilization
Empower women
References
http://www.sciencemag.org/content/302/5648/1172.short

http://prezi.com/5dr3dd8li1jm/edit/#19_837793

http://www.susps.org/overview/numbers.html

http://web.b.ebscohost.com/ONE-CHILD POLICY IS ONE BIG PROBLEM FOR CHINA.

http://en.wikipedia.org/wiki/Human_overpopulation

http://econ.esy.es/econ/edu/cup/reports/2011/popgrowth.pdf

http://www.revisionworld.com/gcse-revision/geography/population/social-economic-political-effects#sthash.ht33Sn1j.dpuf

http://www.actionbioscience.org/environment/hinrichsen_robey.html

http://howmany.org/enhttp://sitemaker.umich.edu/section4group5/conclusionsvironmental_and_social_ills.php

http://overpopulationdeforestation.blogspot.co.uk/

http://www.epaw.co.uk/carbon/deforestation.html

http://www.theguardian.com/environment/2013/jun/30/stephen-emmott-ten-billion


However, we are told in the Bible that we should:
" be fruitful and increase in number"
(Genesis 9:7). So God wants humanity to grow no matter .the case
Faith Integration
INTRODUCTION
This topic of world population affects everyone. This increasing growth rate in the future means pressures on the environment, global food supplies, and energy resources. At the moment the human population is estimated to be at 7.5 billion. And this is projected by 2050 to probably be larger by 2 to 4 billion people. We have to ask ourselves one question: What are the underlying problems with overpopulation?
WHAT ARE THE MAJOR EFFECTS?
It wasn’t until about 1650 that the population growth started to increase dramatically.

There was a drastic decrease in the mortality rate due to...


Population Growth
Better sanitation and hygiene
Control of disease
Increased food availability
Improved economic conditions
FRESH WATER
The quantity of water is limited for drinking as well a sewage treatment and effluent discharge.
CLEAN AIR
The increase of people in the same area could cause smog that can cause health problems.
OIL
MOST THINGS IN THE WORLD RUN ON OIL. SOME EXPERTS ARE SAYING THAT THE CURRENT OIL RESERVE WILL ONLY LAST FOR ANOTHER 40 YEARS.
ECONOMICAL EFFECTS
POSITIVE:
MORE LABORS
With population growing this mean a country will possess an impressive number of labors.Because of the availability of labor force, it is possible
for firms to divide their labor into particular division of labor to do specific tasks. An excellent example of specialization is car assembly line in which each division just takes
responsibility of installing only one part of the car such as engine or car wheels. Therefore, there will be an great increase in production in a country.
COMMUNICATION AND TRANSPORTATION
Transportation plays an important role in economic development. A good transportation system can help reduce transportation cost and travel time. Along with high population growth rate, the increase in population density is inevitable. A dense population is likely to pressure the government to develop more in transportation system such as railroad, highways and road.
EXAMPLE
China in 1985, its population density was 110 people/km2 and the total amount of railroad was 52,000 km while in 2010, the total length of railroad is 91,000 km (increase 75%) and its population density is 141 people/km2 (increase 28%).
MARKET SIZE
The greater the population size is, the larger the market size becomes. In order to meet the product demand of the large-size market, bigger and
more effective as well as longer performance period manufacturing plants are required to
develop.
STANDARD OF LIVING
Population growth also leads to higher total consumption demand for goods and services. If supply is lower than demand, the goods will become scarce. Due to high demands and
lack of resources, the prices of the goods will go up.

LACK OF JOBS
As Population increase there will be not be enough jobs. Furthermore, an increase in population will lead to a decrease in pay per worker (since adding more workers can lower the amount of pay at each worker’s disposal)

POLITICAL EFFECTS
FINANCE
Government are not able to fund a growing population or provide work for them so informal sector becomes dominant
INCREASE OF TAXES
In a MEDC country such as USA, the government will be forced to charge people more taxes to cover growing costs of an elderly population. As a result, people would be getting much less pay.
NEGATIVE

ENVIROMENTAL EFFECTS
FOOD SUPPLY
Will there be enough food to go around? one out of every eight people alive, go to bed hungry. Every day, 25,000 people die of malnutrition and hunger-related diseases. We currently have no known means of being able to feed 10 billion of us at our current rate of consumption and with our current agricultural system.Indeed, simply to feed ourselves in the next 40 years, we will need to produce more food than the entire agricultural output of the past 10,000 years combined.
AIR QUALITY
In many regions of the country, childhood asthma rates have risen dramatically in the past 20 years. The problems are not limited to MEDC countries with their automobiles and factories. Children in LEDC countries, where people depend on burning wood and dung for their heat and cooking, are also at risk.
COASTLINES
Half of all coastal ecosystems are pressured by high population densities and urban development. A tide of pollution is rising in the world’s seas. Ocean fisheries are being over exploited, and fish catches are down.
THE O ZONE LAYER
50 years ago kids were told by parents to play outside because sunshine is good for you. Many parents today are apprehensive about this, because the ozone layer of the atmosphere no longer protects us from the harmful ultraviolet (UV) rays of the sun. This O zone layer is very important because without it there will be no life. As population increases this will contribute to the destruction of the layer from human industries. Currently the layer is being destroyed at a rate of about 4% per decade.
PROJECTIONS OF POPULATION GROWTH
The world population is currently growing by approximately 74 million people per year. At the moment the UN's predictions estimate that the world population will reach 9.0 billion around 2050, if there is a decrease in average fertility rate from 2.5 down to 2.0. Nearly all growth will take place in the less developed regions, where today's 5.3 billion population of LEDC countries is estimated to increase to 7.8 billion in 2050. By contrast, the population of the MEDC countries will remain mostly unchanged, at 1.2 billion. An exception is the United States population, which is expected to increase by 44% from 2008 to 2050.
AGRICULTURE AND LAND
In one year, both 130 million babies are born (UNFPA) and 3-6 billion trees are cut down (GreenFacts). As shown, the world population increases and and there is increase in the amount of trees cut down. With more people being born each day, there is a greater need for lumber and farmland to help these people. As a result, there is the deforestation of acres of tree. This deforestation contributes to global warming. Forests are the most efficient ecosystem on earth for sucking carbon from the atmosphere and storing it underground - where it is most wanted. This helps regulate the natural greenhouse effect. By implication, Deforestation removes this potential sink for the carbon dioxide mankind is pumping into the atmosphere.
CONCLUSION
Human population growth is at the root of our most pressing issues, including the increase of tax, habitat loss and climate change. There are more than 7 billion people on the planet, and we're adding 227,000 more every day. And this figure is increasing daily. From the presentation it is evident No matter the country, an increase in human numbers inevitably leads to problems. I found that a growing population puts strains on the natural resources of the environment, transportation, and water availability. This is an inevitable problem, so I feel we must all make it aware to everyone and raise their environmental stewardship.
About 200 million women in the world would prefer to delay having children but do not have the right healthcare. With modern life-saving medicine has come modern contraception. We need to provide services and accurate information to the people who really want it. Furthermore, there should be more job and education opportunities for these women. Studies have shown that women better quality jobs, they choose to have small families, and are able to invest more in each child which helps break the cycle of poverty.
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