important problems in the world's population explosion

The population explosion is threatening the future of humanity famine

The past two centuries saw a big increase in the population of the world known as the "population explosion." On October 31 (October) the past, the number of inhabitants on the planet on which we live to seven billion people. This is the first time in human history long that reaches the population to this high figure, and frightening, too, in spite of this, it will not stop at this point, where experts expect the United Nations to continue the rapid increase of the population to arrive after 34 years only, to nine billion people in the year 2045, then to 14 billion at the end of the current century,   Experts expect to stop increasing the population of the planet at the level of 24 billion after 120 years. Ie in the year 2131, as they believe that family planning, then you will succeed in stabilizing the rate of increase at that date. Is bear the natural resources of the planet to absorb all of this growing number of human beings? Or are we in the future will face a severe shortage of food and water threatens the destruction of human life?

Scientists believe that the age of the earth about four billion and 500 million a year, and when he appeared Neanderthal since about six million years ago, the earth was filled with forests and trees and different kinds of animals, while the number of objects is less. The number of human beings grows and multiplies by small through hundreds of thousands of years, until it reached at the beginning of the second millennium of the Christian calendar since any one of a thousand and ten years to 400 million people, live in the six continents of the globe. Then multiply this number during the seven and a half centuries, to reach 800 million in the year 1750, with the beginning of the industrial revolution in European countries. Since then, the situation has changed dramatically as the population began growing rapidly, doubled by five times over two hundred years only, for up to four billion people in the mid-twentieth century.

The number of humans then by 50 per cent in half a century to reach 6 billion at the beginning of the twenty-first century. It has been shown that the human being - in his attempt to control nature was able in a short period of age since the beginning of the Industrial Revolution, the elimination of millions of animals that do not wish to domesticated also destroyed large tracts of land to build a green Tjmath population. The estimated number of human beings who have lived on earth since the advent of human and so far, about 108 billion people.

Reasons for population increase

The main reason for the increase in population, the spacing difference between the number of born and the number of people dying. Until recently, the birth rate was almost equal with the mortality rate, thus keeping the balance in the population. Despite the fact that people were usually are having a larger number of children, but many of them were dying before reaching the age of five because of the spread of diseases. During the industrial revolution that took place in Europe and America in the eighteenth and nineteenth centuries as a result of the advancement of science and technology, there has been a decrease in the proportion of deaths has led to change this balance.

Human has been able, thanks to scientific and technological development to increase the amount of food crops produced and distributed, as improved health services to citizens who were able to get clean water and sanitation in their homes.

At the same time popping antibiotics and vaccination against epidemics, as the spread of education among the people and the standard of living has risen in many countries. Because of this technological advances are now able people in the industrialized countries, the fight against microbes that were killing them before, as they were able to get food in abundance. With the passage of time spread of these discoveries and inventions in all parts of the world, resulting in a lower mortality rate everywhere.

Thus, while five children now are born every second, does not die but only two people, which increases the three people in the census. However, this increase occurs by a large margin in some Third World countries than in the developed world, but they affect all countries in the world through the global economy and the environment.

Food production and distribution

The use of modern technology in agriculture to increase the area of ​​cultivated land in some countries, also enables farmers in many regions of the world to increase food crop dramatically, through the use of modern irrigation methods during the past 150 years. For example, the amount of grain that has grown between 1950 and 1984 increased from 631 million tons to 650 million and one billion tons, an increase of more than doubled and a half, at a time when the world's population increased by only 1.9 times.

In recent years the media has been able to produce advanced technology and multiple ways of seeds, chemical fertilizers and insect-resistant materials and advanced machinery, which helped to increase global production of food significantly. However, this increase is not evenly distributed in all regions of the world, in Africa, which has increased its population, which decreased food production. Some experts believe that if the resulting food was distributed evenly in the world, there will be no shortage of food at least for the time being, but the lack of financial resources to buy food, which leads to the occurrence of famine in some countries.

Improve the level of public health

In the past, people were dying at an early age because of epidemics, Such as cholera, which spread through contaminated water. With the advancement of technology began some developed countries provide clean water for their citizens, then spread this way in the majority of countries in the world. The scientists were able to identify the means to protect against many diseases and their treatment of the injured.

At the same time helped improve the standard of food on the declining number of Alovat among newborns, when the newborn child gets an adequate amount of the right food, increasing his chances of life for a longer period. But unfortunately there are some people who do not have enough money nor the ability to use the right food which increases the mortality rate of children they have. The vaccination against diseases ranked second in importance after food, where scientists were able to use a vaccine to protect against some infectious diseases such as influenza and smallpox, polio and measles. The modern health care has helped in eliminating germs and microbes that spread diseases in the communities by infection.

It was the discovery of new types of medication a significant impact in the elimination of many of the diseases that have been intractable in the past, which helped the high rate of population increase. So that the millions of people who were dying because of this disease in the past, have become living for longer life. While the resulting increase in food and the high level of health treatment to reduce the number of deaths, the fertility rate has continued to rise, which brought us to what became known as the explosion of population.

The results of the rapid increase in population

Population explosion poses a significant burden on the natural resources of the planet, and threatens to lower the living standards of the people due to lack of per capita food and water and services. It is clear that population growth occurs more quickly in poor countries than in rich countries, which increases the suffering of the citizens in these countries as it leads to lower standard of living and poor health.

While the researchers did not expect the number of residents of rich countries only after 120 years, they believe that it will double in the third world countries in 33 years only. Therefore, we note that the majority of the poor live in countries with high rates of reproduction. Although the rich industrial countries do not increase as fast as the population of developing countries, but the communities are all rich and poor are affected as a result of this speed.

How can cope with the problems of overpopulation?

Some experts believe that the increase in population represents the greatest threat to the future of humanity. In the past, the high number of deaths among children and short life expectancy in adults Ihfezan balance to determine the number of the world's population. But the situation has changed now because of the high level of nutrition, hygiene and health care, so that the smaller the number of deaths among children, has also increased the average age of the adults, which led to the rapid population growth in many countries, especially in Asia, Latin America and Africa.

If the population continued to increase in the same proportions present, will increase the population of the earth greater extent than natural resources in them, leading to deprive the vast majority of people of their basic needs, not able to come back to life comfortably. They see the need to limit population growth by reducing the number of children born per family, especially in poor countries. According to statistics, most of the world's population are now in the twenty-eighth of the ages, and the number Oktralojnas human race is Han Chinese.