what are the causes of human population explosion

Causes of Population Explosion

• 1. High Birth Rate High Birth rate is a major cause responsible for the rapid growth of population. ...
• 2. Low Death Rate The phenomenal fall in the death rate in recent years is another important factor that has contributed to the rapid increase in population. ...
• 3. Early Marriage ...
• 4. Social and Religious reasons ...
• 5. Poverty ...
• 6. Standard of living ...
• 7. Illiteracy ...

Full Answer

How does population explosion occur?

Population explosion can occur due to the increase in the birth rates, a substantial decrease in the mortality rates, immigration or a major depletion of resources creating an unsustainable biome not suitable for habitation. Population explosion can occur in a small region or a very sparsely populated area too even if the available resources in ...

How did the Industrial Revolution lead to the population explosion?

This succession of high birth rates and low death rates have commenced to the population explosion in many countries throughout the world. The industrial revolution, as well as the agricultural revolution, had a significant contribution to the overpopulation concern.

What factors have contributed to the rapid increase in population?

The phenomenal fall in the death rate in recent years is another important factor that has contributed to the rapid increase in population. 1. High Birth Rate High Birth rate is a major cause responsible for the rapid growth of population.

What are the main causes of overpopulation?

Overpopulation: It is a condition where population surges to a level that the earth cannot accommodate comfortably, and poses a threat to the environment. Shortage of Food: The food demand for the growing population cannot be met.

What caused the explosion of the human population?

Human population growth has increased in recent centuries due to medical advancements and improved agricultural productivity. Those concerned by this trend argue that it results in a level of resource consumption which exceeds the environment's carrying capacity, leading to population overshoot.

What are the five main causes of population explosion?

Causes in IndiaHot Climate. One of the reasons for the fast-rising population in India is its hot climate. ... Child Marriage and Multi Marriage System. ... Religious Superstitions. ... Illiteracy and Unawareness. ... Poverty. ... Birth Rate. ... Death Rate. ... Indifferent towards Family Planning.More items...•

What is the human population explosion?

In 1 A.D., the human population on Earth was steady at 200 million. In 1804, in the midst of the Industrial Revolution, this count passed one billion. In 2011, just over 200 years later, the population soared to seven billion.

What are the 4 causes of population growth?

When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young to begin with) and migration.

What are the types of population explosion?

Two types of population growth patterns may occur depending on specific environmental conditions: An exponential growth pattern (J curve) occurs in an ideal, unlimited environment. A logistic growth pattern (S curve) occurs when environmental pressures slow the rate of growth.

How is human population explosion the biggest?

Human population explosion is the biggest threat to the existence of the ailing earth because, as the population goes on increasing the struggle for existence amongst the living beings will get tougher and competitive.

When did the human population explode?

The population explosion first occurred on a small scale and with a relatively moderate intensity in Europe and America, more or less between 1750 and 1950. From 1950 on, a much more substantial and intensive population explosion started to take place in Asia, Latin America and Africa (Fig. 2).

How does the human population affect the environment?

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

What are the 10 causes of population explosion?

The Causes of OverpopulationFalling Mortality Rate.Underutilized Contraception.Lack of Female Education.Ecological Degradation.Increased Conflicts.Higher Risk of Disasters and Pandemics.

What are the 5 effects of overpopulation?

Fatal Effects of OverpopulationDepletion of Natural Resources. The effects of overpopulation are quite severe. ... Degradation of Environment. ... Conflicts and Wars. ... Rise in Unemployment. ... High Cost of Living. ... Pandemics and Epidemics. ... Malnutrition, Starvation and Famine. ... Water Shortage.More items...

What is population explosion class 5?

It is a sudden increase in number of individuals in a specific area at a given time. Population explosion is a cause of serious concern for all of us . Its impact is already showing in many areas caused by a sudden increase in population.

What are 3 of the 5 factors that affect population?

Population growth rate is affected by birth rates, death rates, immigration, and emigration.

What factors contributed to the rapid increase in population?

The phenomenal fall in the death rate in recent years is another important factor that has contributed to the rapid increase in population.

What was the death rate in India in 2001?

The death rate in India is about 8.5 per thousand in 2001. Due to advancement in medical science, dreadful and chronic diseases such a small pox, cholera, plague, typhoid are no longer dreaded. Better facilities for sanitation and cleanliness, provision of pre-natal and post-natal care has reduced infant mortality rate.

Why do people with low standard of living have more children?

People whose standard of living is low tend to have more children because an additional child is considered as an asset rather than a liability. Since a majority of the population is uneducated, they are unable to understand the need for family planning.

Why is early marriage important in India?

3. Early Marriage. The practice of early marriage is another important reason for the rapid increase in population in India. The mean age of marriage for girls is about 18 years, which is low, compared to the other countries of the world, which is about 23 to 25 years. This results in a longer span for reproductive activity and the increase in ...

Why do people in India marry?

In India, every person has to marry because marriage is a compulsory institution as per social norms. In joint family system, nobody feels individual responsibility and everybody has access to equal level of consumption. Therefore, people do not hesitate to increase the size of the family.

What is the role of children in the family?

Children are source for income of the family. The children at a very young age help their parents in work, instead of going to school and thus prove to be an asset for the family. Every additional child will become an earning member and thus supplement the family income. 6. Standard of living.

What percentage of the population in India is illiterate?

A major part of the population (about 60%) in India is either illiterate or has the minimum education. This leads them to accept minimal work in which they cannot even support themselves. Unemployment and under-employment further lead to poverty.

How many children will be in the world by 2100?

Despite current fertility levels being at an unprecedented low, they still remain above replacement level at an average of 2.5 children per couple. This trend, along with decreasing death rates due to advances in modern medicine, water, and sanitation, has contributed to the high rate of population growth. If fertility remains constant at current levels, population projections from the UN show that by 2100 the population will reach 27 billion; however, if fertility continues to drop, other models project population counts anywhere between 6 billion to 16 billion by 2100.

Why are aquifers drying up in India?

The aquifers under cities in India are drying up as thousands of wells pump up groundwater to satiate their citizens’ thirst. In response to a growing global demand for food, industrialized farms are replacing small-scale agriculture, thus increasing the volume of pesticides and fertilizers released into the environment.

What are some examples of human-induced changes?

Climate change and loss of biodiversity have proven to be two of the strongest examples of many human-induced phenomena. At the start of the Holocene, the preindustrial era, 280 parts per million (ppm) of CO2 existed in the atmosphere. As of 2012, this number has spiked to 395 ppm of CO2.

What is Wyman concerned about?

Wyman, however, is most concerned about an even more fundamental resource. “The first thing to give out will be the aquifers,” he stated while expressing his great concern regarding freshwater scarcity. As rivers become increasingly polluted, and as more groundwater is drawn up from aquifers to meet the demands of an expanding population, water reserves are bound to eventually run dry. Chennai, a city in the south of India, has already experienced a number of “water outages” in the summer months, during which the local government was forced to bring in water from surrounding Indian states to provide for their citizens.

What percentage of the world population are Americans?

One argument is that it is not the number of people, but rather their level of consumption that is the issue. Americans make up only 4 percent of the world population, and yet are responsible for 25 percent of the resources used globally.

How can we reduce the effects of human population?

Reducing energy, water, and materials consumption through conservation, efficiency, and green technologies are important steps in minimizing the effects of human population. However, Norman Borlaugh, the winner of the Nobel Peace Prize for his work in developing new plant strains that became the basis of the Green Revolution, stated in his acceptance speech that “there can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort … United they can win a decisive and lasting victory to provide food and other amenities of a progressive civilization for the benefit of all mankind.” There are a number of ideas regarding how to achieve this control of the population.

What is the population of Shenzhen?

Shenzhen, a city in China’s Guangdong province, has a population of over 10 million. Air pollution often negatively impacts visibility, causing buildings in the distance to appear hazy. Photo by Sophie Janaskie.

How does population explosion affect the environment?

Effects of population explosion. The effect of population explosion is multi-layered. It not only impacts the environment and the availability of resources but it also impacts the health of individuals within the population. Natural resources are depleting constantly with the increasing demand and consumption.

What are the possibilities of extraterrestrial settlement?

The overpopulation on Earth can be easily combated by the use of Extraterrestrial settlements or space habitats that could support life forms . Many Scientists have suggested the use of the Asteroid belt or the Kupier belt to build the future home for humanity. Famous scientists like Freeman Dyson, Stephen Hawking, Gerard K. O’Neil, and K. Eric Drexter have all suggested space as a potential habitat for the human population to meet the demands for resources and land. There are many ongoing kinds of research that is looking into the possibilities of habitation in Mars, Moon and the upper layers of the atmosphere in Venus and other planets in the Solar system.

Why is population explosion important?

Population explosion can occur due to the increase in the birth rates, a substantial decrease in the mortality rates, immigration or a major depletion of resources creating an unsustainable biome not suitable for habitation. Population explosion can occur in a small region ...

How can we stop the population growth?

It is not only the question of available resources and its consumption, but it is also a concern about providing a quality life to the current and future generations. Birth control and family planning is the first step that needs to be taken to ensure a gradual decline in the growth rate of the population. About 40% of worldwide pregnancies are unintentional which can be avoided by the use of oral contraceptives or other birth control devices like condoms or intrauterine device.

Why has the population grown so fast in the last century?

There has been a rapid growth of the human population in the last century due to the difference in the birth rate and the mortality rates. In the next one decade, the population of the world is expected to grow by another billion. The impact of uncontrolled population growth impacts not just a section of the society, ...

How can we reverse the effects of population explosion?

However, a change in the lifestyle and the consumption and the use of renewable resources can help reverse the effects of population explosion without an actual or substantial decrease in the population.

How many people are there on Earth?

Just about a century later the population doubled to 2 billion, it increased to 4 billion in the next 45 years (1975) and by January 2019 the current population has reached 7.7 billion. The carrying capacity of the earth is 4 billion to 16 billion. It can be said that population explosion or human overpopulation may have already occurred on the Earth. According to the recent estimates, the world population would have reached somewhere around 10-11 billion between the years 2014 and 2050.

Why are slums bad?

Bad Health: Due to large population and lack of proper medical facilities there is fear of epidemic and spread of communicable diseases. Increase in Slums: For more people, more houses are required and the houses are not built at high rate. Many people cannot afford them.

What is the definition of control of diseases?

Control of Diseases and Epidemics: the eradication of fatal diseases, control of epidemics, and control on communicable diseases increased life span.

What are the effects of overpopulation on energy?

Energy Crises: Overpopulation results in high demand for energy. Hence the consumption of oil, petroleum products, electricity increases. Thus less energy available for industry.

What are the factors that increase the life expectancy of the human population?

Increase in Life Expectancy: Due to improved living conditions, better hygiene and sanitation habits, better nutrition, health education, better medical facilities, etc. the average life expectancy of the human population has improved significantly. Advancement in Agriculture: Advances in agriculture made way to technology in farming.

Why does unemployment increase?

Unemployment: Unemployment increases with the increase in the population due to lack of educational facilities, proper training, and job opportunities. In developing countries with a backward economy and little scope for fruitful employment, millions of people find no work to do for ensured living.

What is the rapid decline in death rate?

Rapid Decline in Death Rate: An improvement in medical science and technology, wide usage of preventive drugs (vaccines), improved health care facilities, has reduced the Maternal Mortality Rate (MMR) and the Infant Mortality Rate (IMR).

What is over utilization of natural resources?

Over Utilization of Natural Resources: There is stress on system to meet the demands of the increasing population. The excessive demand for finished products leading to over-industrialization and over-utilization of natural resources.

What Is Population Explosion?

Moreover, it is a situation wherein the economy is incapable of coping up with the growing demand of its current population.

How did the Industrial Revolution affect the death rate?

While the Industrial Revolution, a phase of history in Europe and North America where there were magnificent advancements in science and technology, the victory in reducing death rates was attributable to numerous circumstances: progresses in food stock and distribution, advancement in public health (water and hygiene facilities), and therapeutic technology (vaccines antibiotics and antimicrobial), along with increases in education and standards of living in many developing countries. Without these traits being in several children’s lives, they could not have survived frequent diseases like measles or the flu.

How many people were in the world in 1989?

The yearly rise in the number of prevailing individuals rose to 88.0 million in the year 1989, then gradually decreased to around 73.9 million in 2003, following which it raised again to nearly 75.2 million in the year 2006. In 2017, the human population rose by 83 million. Ordinarily, developed nations have witnessed a deterioration in their growth rates in contemporary decades, though yearly growth rates remain beyond 2% in poverty-stricken nations of the Middle East and Sub-Saharan Africa, along with South Asia, Southeast Asia, and Latin America.

What is the remarkable truth about the latest 15 decades?

The remarkable truth about the latest 15 decades has been the capacity of producers to enhance food production geometrically in various places. Agricultural practices have advanced in the United States in the latter two centuries. Enough of the world endured agricultural success, notably in the latest 50 years. Between 1950 and 1984, for instance, the volume of grain harvested globally has risen from 631 million tons to 1.65 billion tons. This signifies an increase of 2.6 times at a moment when the world population expanded by only 1.9 times. In more contemporary years, technology has created a wider variety of systems: unique kinds of seed, chemical fertilizers, pesticides, and more advanced machinations. The adoption of technology has made feasible the accelerated development of agriculture throughout the world. The application of pesticides, for example, was assumed to grow between 400 to 600% in the latest 25 years of the twentieth century.

Why is the population decreasing in Europe?

In some of the countries, the population is decreasing, notably in Eastern Europe, largely due to low fertility rates, high death rates, and emigration. In Southern Africa, growth is decreasing due to a large number of AIDS-related losses. Some Western European nations might also encounter population deterioration.

What does a positive growth rate mean?

A positive growth rate symbolizes that the population is rising, on the other hand, a negative growth rate means that the population is declining.

Why did the population increase in the last 100 years?

In the last 100 years, there has been an extensive quadruple raise in the population, due to therapeutic advances, lower mortality rates, and an improvement in agricultural fecundity which is made feasible by the Green Revolution.

High Birth Rate

• High Birth rate is a major cause responsible for the rapid growth of population. In India, although the birth rate has declined from 45.8 per thousand during the period 1891-1900 to about 25.8 per thousand in 2001, it is still considered to be substantially high. This shows that the birth rate has not come down considerably in spite of the increase...

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Low Death Rate

Early Marriage

Social and Religious Reasons

Poverty

Standard of Living

Illiteracy

Reasons Behind Population Explosion & Importance of Population Control

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Causes of Population Explosion

Effects of Population Explosion

Combating Population Explosion

Conclusion