The world population is the number of to be S human which lives in the world. It is estimated in 2007 at 6,671 billion, whereas with the beginning of the Age of Enlightenment (towards 1700), it is estimated between 600 and 679 million inhabitants.
Analyzes
This number increases approximately 195.000 per day, difference between the births (353 000) and the deaths (159 000), which corresponds to an increase in 71 million individuals each year. At this rate/rhythm, the course of the 7 billion human beings will be reached in 2012-2013.The preceding course of 6 billion had been reached in October 1999. On this occasion, the the United Nations had symbolically indicated a Bosnian newborn the " baby 6 milliards" .
Although the world population continues to grow, this increase slows down because of a fall of fruitfulness. Currently, more half of humanity lives in an area of the World where the Fertility rate is lower than 2,1 children per woman, rate necessary to the replacement of the generations. The increase in the population relates to especially the countries of the South, in particular the Africa whose population will double in the next decades.
This noted evolution invalid predictions of the demographers of the years 1950-1960 which announced a world demographic boom with 15 billion human beings on Earth for 2050, whereas this number should be about 9 billion.
However, an important ageing of the population takes place in all the developed countries. This ageing should also arrive, to a lesser extent, in the other countries. That is due to the combined improvement of the hygiene of life, the medical care in general and the care geriatric in particular.
Evolution of the world population
Population by continent
In 2007 the distribution of the world population by Continent is the following one:- Asia: 4,03 billion (60,5%)
- Africa: 965 million (14,0%)
- Europe: 731 million (11,3%)
- Latin America and the Caribbean: 572 million (8,6%)
- North America: 339 million (5,1%)
- Oceania: 34 million (0,5%)
Here a graph showing the world population by continent and some countries of these continents.
Colors =
id: world been worth: rgb (0.7, 0.6, 0.99)
id: continent been worth: rgb (0.4, 0.85, 0.4)
id: country been worth: rgb (0.9, 0.8, 0.6)
id: territory been worth: rgb (0.8, 0.8, 0.8)
id: minorline been worth: rgb (0.9, 0.9, 0.9)
id: line been worth: rgb (0.5, 0.5, 0.5)
PlotData=
width: 15 textcolor: black shift: (5, - 5) anchor: from fontsize: S
bar: W from: 0 till: 6671 color: world text: " World population "
bar: N1 from: 0 till: 4030 color: continent text: " Asia "
bar: C1 from: 0 till: 1328 color: country text: " Popular republic of China "
bar: C2 from: 0 till: 1169 color: country text: " India "
bar: C3 from: 0 till: 232 color: country text: " Indonesia "
bar: C4 from: 0 till: 164 color: country text: " Pakistan "
bar: C5 from: 0 till: 159 color: country text: " Bangladesh "
bar: N2 from: 0 till: 965 color: continent text: " Africa "
bar: C6 from: 0 till: 148 color: country text: " Nigeria "
bar: N3 from: 0 till: 731 color: continent text: " Europe "
bar: T1 from: 0 till: 463 color: territory text: " European Union (to 25) "
bar: C7 from: 0 till: 142 color: country text: " Russia "
bar: N4 from: 0 till: 339 color: continent text: " North America "
bar: C8 from: 0 till: 305 color: country text: " the United States of America "
bar: N5 from: 0 till: 572 color: continent text: " Latin America and the Caribbean "
bar: C9 from: 0 till: 192 color: country text: " Brazil "
ScaleMajor = gridcolor: line links: year increment: 1000 start: 0
ScaleMinor = gridcolor: minorline links: year increment: 100 start: 0
TextData =
fontsize: S
textcolor: black
pos: (250,25) # tabs: (100-left)
text: " Total population (in million inhabitants)
The pattern of the settlement according to the developed and less developed areas is very unequal. Thus the most developed areas accounts for 18,3% of the population in 2007 against 81,7% for the least developed areas.
Estimate of the world population through time
The following estimate of the world population through time is based on the synthesis of the Bureau of the census of the United States for the period going from: - 10000 with 1940 and for the former years on the data of the United Nations (UNO).It is observed that whereas the population knew a relative low growth lasting of the thousands of years, the end of the modern time mark the beginning of an important increase in the population, making pass the number of anybody alive on Earth of approximately 650 million in 1750 to more than 1,2 billion one century later and more than 2,5 billion in 1950. And this increase does not weaken with the planetary scales.
| valign=" top" width=" 50%" align=" center" | |}
See too
Reference
| Random links: | Vegetable cell | Ernst Kantorowicz | Guérech of Brittany | Yin Xu | The X Factor |