The chart clearly illustrates how world population has changed in history. The US Census Bureau has assembled a table with estimated population from 10000 BC to 1950 according to different sources.

At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year.

A tremendous change occurred with the industrial revolution: whereas it had taken all of human history until around 1800 for world population to reach one billion, the second billion was achieved in only 130 years (1930), the third billion in less than 30 years (1959), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987). During the 20th century alone, the population in the world has grown from 1.65 billion to 6 billion.

This chart demonstrates the effect of exponential growth:

Today World population is 7,114,082,500+. 

It grows by: 

44,023,840  Births this year 

18,802,197  Deaths this year.

25,221,642  Net population growth this year

Year Population
1 200 million
1000 275 million
1500 450 million
1650 500 million
1750 700 million
1804 1 billion
1850 1.2 billion
1900 1.6 billion
1927 2 billion
1950 2.55 billion
1955 2.8 billion
1960 3 billion
1965 3.3 billion
1970 3.7 billion
1975 4 billion
1980 4.5 billion
1985 4.85 billion
1987 5 billion
1990 5.3 billion
1995 5.7 billion
1999 6 billion
2000 6.1 billion
2005 6.45 billion
2010 6.8 billion
2011 7 billion

World Population Clock

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Replies to This Discussion

Downright scarey.  People always say, "What can Americans do about it?  We have plenty of food to go around, &c."  If we do not do something about, no one will.  We should at least set an example.  The Gnostics were right but for the wrong reason.  They so despised physical matter they regarded bringing a child into the world a terrible sin.  But this was only because the newborn was at birth given up to the clutches of the demiurgos.  Today, India, Africa, and other developing nations and continents are the major culprits (in addition to the RCC, of course).

Good post, concise and visually helpful. Thanks, Joan.

I don't think people will be ready for voluntary population control until a whole new way of understanding our crisis is adopted. Mentally, emotionally, and culturally we've been moving far too slowly for that. At the rate we're going, civilization is likely to collapse by the end of this century. Nature can move faster, physics and chemistry can move faster, than us with our primitive brains.




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