Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Human population growth trends
Human population growth trends
Merits and demerits of demographic transition model
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Human population growth trends
Regional Variations and Patterns of Population Growth
The demographic transition model provides one with insight into the transformation or transition which occurs in several steps as the industrialization of a country progresses. By using the demographic transition as a model one can describe regional variations and patterns of population growth on a global level. The demographic transition model includes four stages: the pre industrialized society, the agricultural revolution, the industrial revolution, and the post industrial societies/developed.
The first stage of the demographic transition model is the pre industrial stage. In this stage birth and death rates are both usually high, which normally leads to almost no population growth within a country. The second stage of the demographic transition model is the Agricultural revolution stage, where one finds a reduction in death rates (DR), but birth rates (BR) remain high. In this stage there is also a population explosion, which is found mainly in underdeveloped and developing countries. Moving on to the third stage known as the industrial revolution stage one sees a drastic change in population. Some of the change is due to advances in medicine and improvements in diet. These changes caused a drop in death rates and birth rates drop. “Human life expectancy in the industrialized countries soared from an average of 35 years in the eighteenth century to 75 years or more at present.” In this stage we find that the birth rates are about the same and death rates are lower. The last stage known as the post industrial period produces zero population growth. The zero population growth is achieved when there is both a halt or decline in both birth rates and death rates. Many countries however do not pass all the way through the demographic transition, but rather have a prolonged period during stage two, where the population explosion is in full effect, this causes for some problems in the countries and populations on a global scale.
In discussing regional variations and patterns of population growth many components are involved. Fertility rates and death rates are good indicators to the global population and patterns of growth and variation. Total fertility rates (TFR) is the best prediction of a population over time. When we look at these numbers one, may start to wonder what factors have influenced these patterns and variations being observed.
Disregarding the population number of the Belgium and Canada, their population pyramids are similar. In both countries and genders, the majority of the population are aged 50 - 54, with a lower percentage of younger people. This constrictive population pyramid shows that Canada and Belgium have declining birth rates.
46. Indicate the factors that contributed to population growth in the American colonies during the eighteenth century, and discuss the characteristics and consequences of that growth.
Life expectancy in many parts of the world has increased since 1800 (Life Expectancy by Age, n.d). To understand these changes we can study the demographic transition, the changes in birth and death rates over extended periods of time. The industrial revolution has significantly improved the conditions of humans and in 20th century death rates declined but the birth rates remained unchanged. In many of today’s developed countries both rates have declined; however, in developing countries, while death rates have declined due the improvements of living conditions, the birth rates are still high which has caused a record high population growth (HAUB & GRIBBLE, 2011).
The Territorial North consists on the Northwest Territories, Nunavut, and Yukon, all which rank the lowest in population and population density, however, Nunavut ranks the highest in the percent of population growth in Canada. Part of the reason is that the majority of the population in these territories are of Aboriginal descent. The growth rate might seem high in percentage, but the actual numbers are similar to Nova Scotia, has the lowest positive population growth among the provinces. The population density is highest near the Hudson’s Bay, in the city of Iqaluit. Although Statistics Canada did not mention the reason for the population growth, a probable reason could be due to the higher wages and good job markets for skilled labourers
It is a known fact that the world population is increasing without bound; however, there is a debate if this increase is a good thing or if it will prove catastrophic. The article “The Tragedy of the Commons” by Garrett Hardin discusses how the ever-increasing world population will exhaust the world of its natural resources, and eliminate human’s capability of survival. On the other side of the argument is Julian L. Simon who wrote “More People, Greater Wealth, More Resources, Healthier Environment.” This article proposes the theory that with an increase in population, human’s quality of life is amplified. One particular issue that they both mention and have drastically different views on is the future of agriculture and human’s ability to sustain it.
Humans have greatly impacted the global environment. Throughout the course of history, human populations have rapidly increased. Especially in Africa, these numbers have reached extraordinary proportions. Out of all the continents in the world, Africa’s population is increasing the most. The type of growth here is exponential. “Overpopulation is a condition when an organisms numbers exceeds the carrying of its ecological niche.” The growth rate of a population is equal to the birth rate minus the death rate. Therefore, for overpopulation to occur, the birth rate must surpass the death rate (Wiley). The current population of Nigeria is estimated to be 155,215,573. Most of the population consists of the younger generation. More specifically, 41% of the population is between the ages of 0-14. 56% of the population is between the ages of 15-64. However, only 3.1% of the population is 65 and over. This age group represents a very small part of the population. (CIA)
The second phase following the previous stage is a precondition for take-off. Economic growth is starting to take place and it is essential to justify the means within a good definition. The society begins to implement the manufacturing of products while at the same time foreign intervention by advanced societies such as through colonialism is needed to bring about change in one's society .... ... middle of paper ...
The Different Factors that can Affect Population Distribution In this discussion I will consider the pull factors that are increasing the population to be unevenly distributed. There are many factors that influence population distribution and population density. The major influences include climate, soil and vegetation, resources available and modern technology. Just these examples could influence thousands of people to move to different regions to suit their needs.
Stage one is pre modern which is when the birth rate and death rate fluctuate between each other which keeps population at a low, but stable point. Next is urbanizing and industrializing, at this stage the death rate drops due to better health care, standard of living etc and causes the population to increase quite quickly. Stage three is called mature industrial in this phase the birth rate stays high and the death rate is low so the population still increases quickly due to better technology. Lastly is the post industrial stage where the birth rate drops to the same level as the death rate which causes the population to become steady once again. An MEDC would be in stage four or nearing the end of it where and LEDC would be in the early stages.
Population growth is the change in population over a period of time. It happens due to a number of factors such as standard of living, cultural factors, and government policies. When the standard of living become better such as the improvement of social conditions ( shelter, sanitation, clean water , health care and etc) death rate and birth rate reduce as more people become inclined to have fewer children. As standard of living increases, there will be more immigrants thus an increase in population. Government policies which encourage people to have lesser or more children also has a significant effect on birth rate too.
The human population growth rate is an alarming issue that brings with it irreversible consequences, that will likely effect the way of life for future generations to come. With the serious incline in population statistics comes catastrophic processes such as global warming and deforestation that have major ‘knock on’ ramifications. It’s issues such as these that need to be considered when we think about the growth of the human population, and we must take into account why these issues are occurring. We must also explore the options available to us that may assist in limiting the problems, or eliminating them all together, to provide a better place, not only for us in existence now, but also those who will walk this earth in the future decades and centuries to come.
The question of overpopulation's impact on the environment is multi-dimensional and far beyond the scope of a single essay. The issue has to do with considering the environment a normal good while at the same time understanding the impact of industrialization on increased pollution levels. Relationships between industrialization, overpopulation, global pollution, regional pollution, resource depletion, and numerous other environmental and social concerns form a multi-dimensional series of feedback loops, all of which feed back on the original system. Computer models developed by economic research institutions to predict environmental and developmental impacts of population growth (ex. The World Bank, The Economic Research Service) are n-dimensional, only to be accurately evaluated using advanced statistical regressions and matrix analysis. As such, this paper will assume that there is a direct correlation between population and natural resource depletion (environmental degradation by way of pollutants is an entirely different, and more complicated issue), and the most cost-effective way of amelioration would be to restrain population growth. Given that, what is the correct means for policy to approach the population problem? The options include contraceptive distribution, family planning, general economic development, and gender equality among others. Essentially, policy has to address whether population can be restrained with a "tech fix" such as contraceptives or only after a broad socioeconomic shift.
Human population growth was relatively slow for most of human history. Within the past 500 years, however, the advances made in the industrial, transportation, economic, medical, and agricultural revolutions have helped foster an exponential, "J-shaped" rise in human population (Southwick, Figure 15.1, p. 160). The statistics associated with this type of growth are particularly striking: "Human beings took more than 3 million years to reach a population of 1 billion people...The second billion came in only 130 years, the third billion in 30 years, the fourth billion in 15 years, the fifth billion in 12 years..." (Southwick, p. 159). As human population has grown, there has been simultaneous growth within the industrial sector. Both of these increases have greatly contributed to environmental problems, such as natural resource depletion, ecosystem destruction, and global climate change. Also linked with the increasing human population are many social problems, such as poverty and disease. These issues need to be addressed by policy makers in the near future in order to ensure the survival and sustainability of human life.
An increase in human population can influence our economy. Some of the factors that are affected are unemployment, poverty and the restriction of economic expansion. When the population increases, the cost of health, education, and other areas of urban growth are affected. Unempl...
Our world is too small for our ever rapidly growing population. One day resources will run dry and vanish, which will bring death and loss to all nations on this planet. Many researchers and scientists have confirmed that the population will reach 10 billion by the end of the century and will continue to stream upward. There are many different ways in trying to decrease population to contain global warming and assist our environmental changes. The only way to steadily succeeding, families must be the regulators of their fertility and future. Environmentalism can head in a negative direction, which may result in population control and even anti-immigrant policies. Can the developing effort of ‘population integrity’ protect our world while recognizing birth moralities?