Thus, at the beginning of our era, the world population would be around 250 million inhabitants. At the end of the first millennium of our era, it was estimated at about 300 million people. It is not until the early nineteenth century that the world population reaches 1 billion (around 1800). From the early nineteenth century, the industrial revolution era in Europe, the population (demographic) growth speeds(speeded) up. In the early twentieth century, in 1900, the world population is estimated at 1.613 billion people.This is already a significant (increase, burst) speed of population growth.
Changes take place in every part of the world, every economy, every country or every household and so does the population. A population is the total number of people inhabiting a particular place, region or country. With around 7.3 billion people in the world at the current time, the population keeps on rising upward, and it usually affects poor and underdeveloped countries and their economies, people or the environment. It is a natural process. Rich and developed countries, on the other hand, have sustained the limit of the population growth.
In this essay, I will discuss two sides of the dilemma examining each position (pro and cons) critically. Does human growth have effects on our world? Pros Growth population brings a lot of minds into action. When there are a lot of people, for example like 10 billion people in the world. There will be 10 billion minds trying to figure out for the solution to the problems human beings face.
One of the factors in determining the rate of population growth is birth rate. As defined World Bank (n.d.), birth rate is ‘the annual number of live births per 1,000 population estimated at midyear’. Another factor that influences population size is immigration. Some pull factors that attract immigrants into the country are the demand for labour, high standards of living and wages. Hence, a rapid population growth rate would indicate a high birth rate and an influx of immigrants during a period of time.
The Earth produces a limited amount of fresh water and food, which is falling short of the current needs. When population growth increase, the living standards decrease because they consume resources faster than they can regenerate. Many developing countries with rapid population growth face the urgent need to improve living standards. While the populations are expanding, our demand for health care, food, fresh water and shelter have increased. According to Miller and Spoolman in Sustaining the Earth (2015), we are about 7.1 billion people on the planet and this number will increase to 9.6 billion by 2050.
With our population increasing rapidly, pollution is a problem of increasing proportions (Spellman, F., 1999). The huge increase in size of the human population have resulted in a substantial degradation of environmental conditions (Birdsall, N., 2003). Water Pollution. According to the Population Institute, one of the consequences of overpopulation is the pressure that is put on available water resources in order to serve a growing population. Approximately 50% of the worlds’ population will be living in regions around the globe that are considered “water stressed”, either due to lack of it, or poor quality, by the year 2030 (compared to 15% currently).
In the 21st century, population studies are very significant in looking at characteristics of a country, habitat, community and other environments. For example, in the human population, people are interested in a country’s population growth/decay, as the production of goods, social reforms/support or other needs of the people can be suggested. If a population is decreasing, there can be efforts made to improve medications and social support to increase the population and decrease the death rates. But do we actually know how population is modeled and how accurate these models are? This exploration aims at comparing logistic and exponential growth models, the two main models used for population growth, and to determine the extent of how realistic
The other is underpopulation, which occurs when a region has inadequate population numbers to fully utilize the resources available before its disposal. Underpopulation was an issue some time ago but with all these changes in the world, the population is increasing exponentially. Overpopulation is the issue economists, environmentalists and researchers now argue about, and they discuss the problems that it will bring in the future. In 1991, there were approximately 5.4 billon people in the world, according to the Population Reference Bureau, if our growth rate is not reduced soon, it is estimated that by the year 2050, the world’s population
Emigration is to leave one’s country to live in another, foreign one. Immigration, the opposite, is coming to another country to live permanently. According to Riche, in today’s society, immigration “only accounts for maybe half of population growth” (The Habitable Planet: Human Population Dynamics). To first understand how all of these terms relate to population dynamics, it is important to be aware of what population dynamics is. The Merriam-Webster dictionary defines population dynamics as “a branch of knowledge concerned with the sizes of populations and the factors involved in their maintenance, decline, or expansion.” Rates such as the birth and death rates are included in the population dynamics to determine how many people are “entering” and “leaving” a certain area.
In terms of economics, growth is an increase in the country’s capacity to produce the output of goods and services within the country, which can be caused by larger stock of productive capital, larger size of supporting services such as transport and banking, and an increase in the efficiency of productive capital and services. Economic growth is indicated by a