WORLD POPULATION exceeds 7 billion people and continues to grow rapidly / La POBLACIÓN MUNDIAL supera los 7.000 millones de habitantes y sigue creciendo aceleradamente

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World population: 200 thousand inhabitants more every day

From the prehistory to the eighteenth century, the world population has been growing slowly and progressively, but about 200 years ago the so-called demographic explosion begins with an accelerated growth that reaches to our days.

WORLD POPULATION EVOLUTION: approximate calculation

1 million years ago there would be about 100 thousand humans (?)
100 thousand years ago: 1 million
30-40 thousand years ago: 3-4 million
10,000 years ago: 50 million
2,500 years ago: 100 million
2,000 years ago (year 0): 150-200 million
Year 1000: 300 million
1500: 500 million
1800: 950 million
1900: 1,6 billion
1950: 2,6 billion
1960: 3 billion
1970: 3,7 billion
1980: 4,4 billion
1990: 5,2 billion
2000: 6,07 billion
2005: 6,454 billion
2008: 6,7 billion
2011: 7 billion

At present, the world population exceeds 7,000 million inhabitants and continues to increase by 200 thousand people a day (350 thousand births - 150 thousand deaths), which means more than 70 million a year.

This increase occurs mainly in third world or developing countries, where women have more than 3 children (6 or more in many African countries)
However, in developed countries, where the average number of births does not exceed 2 children per woman, the populations do not increase or tend to decrease, although some compensate for the arrival of migrants (Europe has a growth rate of less than 1% per year )

The growth of the population is a function of the number of children a woman gives birth.
And this depends, among others, on factors such as:

- Better education and information (longer schooling, more social progress and fewer pregnancies),
- The social, family, employment and economic situation of women,
- The customs and traditional culture of the place,
- The existence or not of sanitary services that propitiate the family planning.

Many millions of women, especially the Third World, do not have access to effective contraception to prevent population growth.

To achieve a reduction in births in these high-birth-rate regions, it would be very cost-effective to devote more educational efforts and economic investment to inform women (from schools, the media, etc.) about appropriate methods of control (And even distribute massive quantities of birth control pills); This would avoid millions of unwanted pregnancies and abortions, as well as the consequent health risks.

To obtain a reduction of the births in the above mentioned regions of high birthrate would be very profitable to dedicate more educational efforts and economic investment with the end of informing the women (already of the schools, in mass media, etc.) about the suitable methods Of control (and even to distribute free massive amounts of contraceptive pills); It would avoid millions of pregnancies and abortions, as well as the consequent risks for the health.

Half of the planet's inhabitants are concentrated in large, densely populated urban areas, most notably those in / and / or around the following cities:

Tokyo 34-35 million
Bombay 20-21 million
Mexico capital 20-21 million
Sao Paulo 19-20 million
New York 19 million
Shanghai 15-16 million
Calcutta 15-16 million
Jakarta 14-15 million
Dhaka 14-15 million
Karachi 13-14 million

Population growth in cities is 2 times faster than in rural areas.

Life expectancy in many underdeveloped countries (especially in Africa) is below 60 years, while in developed countries it is close to 75 years.

Fifth (1/5) of the world's population (some 1500 million people) live in industrialized countries (Europe, North America, Japan, etc.)
The other 4/5 parts (more than 5000 million people) inhabit in the rest of the
Countries.

If the population continues to grow at its current rate, it could double to 13-14 billion by the end of this century.

Excessive population growth, especially in poor countries, has obvious negative consequences: lack of food resources, less arable land available, invasion and clearing of forests and forests, desertification, scarcity of drinking water and irrigation, pollution, Health problems, massive emigrations, etc.


The excessive growth of the population, especially in poor countries, has negative evident consequences: misuse of resources, less available lands of culture, invasion and felling forest and jungles, desertification, shortage of drinkable water and for irrigation, pollution, sanitary problems , Massive emigrations, etc.

We hope that effective international measures will be taken to avoid this serious humanitarian problem by better planning and distribution of economic and educational resources that will allow for balance and avoid disasters of overpopulation.

THE EXPONENTIAL GROWTH OF THE POPULATION, IF CONTINUED AT THE CURRENT RATE, WILL LEAD US, WITHIN 40-50 YEARS, THE ENERGY RESOURCES PLANETARY (oil, natural gas, coal, uranium, etc.) AND WITH HER, TO A GRAVE INDUSTRIAL CRISIS, IMPOSIBILITATING THE PRODUCTION AND DISTRIBUTION OF FOODS, AND OTHER ELEMENTS (housing, work, medicine, education, transportation, etc.) IMPRESCIENDIBLES FOR THE SUBSISTENCE OF MOST PEOPLE LIVING THE EARTH.

ONLY THE ESTABLISHMENT, AS SOON AS POSSIBLE, OF EFFECTIVE SYSTEMS FOR THE CONTROL OF CHRISTMAS AND THE DEVELOPMENT OF RENEWABLE ENERGIES (solar, wind, geothermal, etc.) CAN SAVE US FROM THE PROBABLE CRISIS THAT THREATENS US.