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What is the relationship between population growth and wellb
Transcript of What is the relationship between population growth and wellb
design by Dóri Sirály for Prezi
Population growth around the world has been rapid. From one billion people in around 1800, our planet now supports over seven billion people. Annually, global population is growing by around 84 million. Wellbeing has improved the world’s population, with improvements in food production, education, medicine and hygiene. These things have resulted in decreasing death rates, and increasing life expectancy.
As the world’s population grows in these countries, things like the quality and quantity of education, economic growth, health, food supply, housing, poverty and the environment will be affected. A large population growth in the future may put stress on a countries resources, especially these poorer countries where there is higher proportion in youth, leading to large future population growth.
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The impact of greater population on wellbeing (mainly in developing countries)
A population pyramid is a graph that allows us to see the gender and age structure of a population. There are different shapes to the pyramids which tell us different things about the population of the country. They can also help show the predicted population for different countries in the future as well.
The demographic transition model
The demographic transition model shows that the population increases with a more developed country with a better well being. The model is important in showing us the relationship between population growth and well being.
The Demographic Transition Model
Poorer countries and the DTM
The 3rd world and poor countries like Egypt, Kenya, India, etc. have a low well being, with children needed for farming, many children dying at an early age, no family planning, low hygiene, limited healthcare, diseases, famine etc. These things lead to a high birth rate, moderate death rates, which leads to an increasing natural increase, but total population is still fairly low
Countries, like USA, Japan, France, Germany and the UK have low birth and death rates, meaning a small amount of natural increase. These countries have a high well being, with family planning, good health, reliable food supply, good sanitation and waste management. Increased life expectancy and decrease in the number of children being born results in an ageing population.
Richer countries and the DTM
High well being in the future - Germany?
In the future, with countries with a very high wellbeing like Germany, population may actually decrease, because of very low birth rates. With even better health, sanitation and technology in the future, population decrease in countries with a very high wellbeing may happen. With an ageing population like in Germany, there will be a decreasing workforce, tax base and more demand for health services.
Developing countries and population growth
In the future if things like health, family planning, education, reliable food supply and sanitation improve in poorer countries previously mentioned, the population will increase, like it has done in richer countries. Because we are slowly starting to help out these countries, the likeliness of this happening is quite high.
Most of the population growth is in the developing countries. The richer countries have a higher wellbeing, but the total population is not growing. By 2050 with an estimated nine billion people in the world, about eight billion people (86 per cent) will be in developing countries, with two billion of those in the least developed nations.
The cost of education to sustain educational standards will get higher. Education is a basic for human wellbeing, and 3rd world countries are already struggling now for children to get a decent education
Work and food
People might have to work more for a decent income, which impacts well being. People will have to travel further for work.
Consumption of resources is higher with a larger population, which leads to food shortages and lower quality of food. Food security may be an issue.
With more people comes more pollution, because there is more electricity being used, more pollution from cars, and because there is more demand for production factories. More people will be living in cities, or traveling to and from cities because of employment, so this is also a factor for more pollution. This means the air quality will be worse, so it leads to a lower wellbeing.
Saniation and disease
With a greater population sanitation will be worse, especially in poorer suburbs such as the slums in Mumbai. These cities will be more crowded, meaning more waste, sewerage and diseases. The places that would most likely be affected would 3rd world countries where the cost of hygiene and healthcare is an issue.
Water shortages may occur, because there is more water needed to drink, cook, be used for appliances, wash, etc. This would mean that people have to be more water wise, and people in poorer countries may suffer because they are already people dying of thirst. There will be less water for crops and farming which may increase the price of certain things, also leading to a lower wellbeing.
Urbanization will be an issue, because there will be a lot more people living in cities and it will get crowded, more polluted and there will be more traffic. Work and housing is in the city, so naturally there will be more people living in cities. Space will become an issue. Already in some countries like India it is an issue, there are so many people living in a small space.
Environmental well being and pollution
In terms of environmental well being water is also an issue. With more people brings more pollution, which leads to climate change, which then leads to water shortages and droughts. More animals and plants may die as a result, and crops will suffer. Overpopulation and bad sanitation affects the water as well, so clean water in some parts of the world may be an issue.
Overpopulation leads to bad air quality which affects the environment as well.
More people use up more resources. We need to find renewable sources of energy, because fossil fuels are not, and there is the possibility that we use them up totally. Fossil fuels are also bad for the environment, leading to climate change which is bad for environmental and human wellbeing.
There will be more cost for healthcare, more stress on employment, and more demand for resources which affects the economic wellbeing of the country as well.
This a picture is an estimate of the natural increase in every country from 2013 - 2050. as you can see the countries with a high well being like some european counts, japan and a few other countries will decrease population. The developing countries in Africa and Asia have the largest amount of natural increase. This is also explained by the demographic transition model
This graphic depicts countries and territories with 2050 urban populations exceeding 100,000. Circles are scaled in proportion to urban population size. You can see that generally the less developed countries have a higher urban population. This is not always the case, with countries like the USA having quite a high amount.
This shows population for 2014 for each region of the world, and the estimated population for these region in 2050. This shows that the developing regions with generally not as good well being, Asia and Africa, will grow the most, and the generally other more developed regions either decreasing in population or staying about the same. Asia increases from 4.4 billion to 5.3, Africa from 1.1 billion to 2.4 billion. These countries approximatly double their population. Europe will lose about 15 million people, due to their lower birth rates than death rates.
This two pictures show comparisons between total fertility rate, infant mortality rate and life expectancy in 1970 and 2013, for Africa and Europe. There has been a lot of change for both countries. Both countries have changed. Europe has a high well being and so less children per woman, less infant deaths and a greater life expectancy. Africa, which is still developing has larger number of children per woman, high number of infant deaths and a short life expectancy. The number of children per woman increases the population, but the infant mortality rate and short life expectancy have been factors in decreasing the population. In the future this might change due to more technology and aid.
This shows the different stages of the pyramids. These relate back to the demographic transition model.
This is picture of Seoul in Korea. The city is rapidly expanding and becoming more urbanized.