For thousands of years the demographic situation is characterized by a very slow increase in the number of people on Earth.About ten thousand years ago the world population was about five million people.By the beginning of a new era of human population has reached two or three hundred million.Mainly, this growth is due to the start of production of food.During the medieval wars and epidemics, population growth rates have declined slightly.The sharp rise coincides with the beginning of the industrial revolution.About two hundred years ago, there was a significant progress in the development of medicine, economics, science and other spheres of public life, will significantly expand the capacity of the human environment.
Since the 17th century noted a marked increase in the rate of growth of the world population.In 1820-30-ies the number of people on the planet has reached the first billion.After this, the sharp increase in population growth.There was a "population explosion."
In the twentieth century, especially in the second half, there is an unprecedented increase in population.At the same time, the demographic situation is characterized by significant changes in mortality and fertility, family and the age structure of the world's population.There was migration and urbanization, there were significant differences in the development of humanity depending on the region of residence.
population explosion in the 20th century is characterized by high absolute rates of population growth.Every year at the end of the century the number increased to ninety million people.UN experts believe that such growth will continue until 2015.
It should be noted that the six billion world population has reached in 1997-98.According to experts, every eleven years, until the mid-21st century will be added a billion people.
It should be noted that the more pronounced "population explosion" in developing countries.This is due to the advent of these new opportunities.Having achieved independence, developing countries can increasingly use the latest achievements in the field of medicine.With the participation and help of the world community, these states were able to resolve the various epidemic diseases, which claim thousands of lives.Thus, for several decades, mortality rates declined significantly.At the same time the birth rate in developing countries remained high.This provoked a "population explosion."
Reduced skyrocketing population growth is possible if fertility decline, given the fact that the mortality rate in developing countries continues to decline steadily.
modern "population explosion" - a large-scale phenomenon.Today, a sharp jump in the population growth observed in a large number of states, thus covering a significant portion of the world's population.In addition, there is a direct or indirect impact on the entire community in the world, as the demographic problem is becoming one of the most global today.
Experts note that the increase in the number of the European population was mainly due to changes in the social, economic sphere of life.In other words, the development of these industries has provoked an increase in the number of people.In developing countries, the situation is opposite.In these countries, growth in the number of people preceded the economic and social development.As a result, in the developing countries is exacerbated an already difficult situation of the people associated with the problems of employment, the environment, food security.
