In what way do you think does not make sense ?!

Given the galloping growth of the human population (6, 9 billion people in 2013), a popular rumor that the number of currently living humans outnumber all previously deceased people. But will have to say that this is a myth!
Although the Earth is overpopulated people, the required number of 100 million people living to the dead outnumbered. This myth stems from 1970 - these. Some versions of the myth claim that as many as 75% of all people who were ever born, live today. However, although the population has quadrupled in the last century, the number of living people afghanistan is still very small in relation to all those who have ever lived and died.
2002 Carl Haub, a demographer at the head of the NGO "Population Reference Bureau" in Washington, changed his earlier calculations on the number of people who have ever existed. In order to get the approximate number studied the available demographic information in order to determine the rate of growth of the human population in different historical periods. Throughout most of the history of the population is slowly growing. According to the UN report -a 1973 "Determinants and Consequences of Population Trends", the first Homo sapiens appeared afghanistan before 50,000 years ago, although on this claim is debatable. We only events afghanistan known from that distant past and how we were then, but it is estimated that up to period of the agricultural revolution in the region of the Middle East around 9000 BC, the Earth inhabited by five million people.
Between the period of the rise of agriculture and the period when the Roman Empire was at its peak, the population is growing at a snail's pace - to 1.g.po.Kr. has grown to 300 million individuals. Then a noticeable decline in the population when she appeared plague - the Black Death, which in the 14th century. Pomelo approximately 75 million people. That is why the world's population by 1650. Grown to only 500 million. Up to 1800 g. The number of people doubled to one billion, thanks to advanced agriculture and better sanitary conditions. 2002 g., When Haub worked their budgets, the world's population exploded, reaching an impressive number of 6.2 billion (2013 g. Is estimated to be 6.9 billion).
In order to calculate how many people have ever lived, Haub used a minimalist approach. afghanistan He took the initial value 2 - ancient "Adam and Eve" - from 50 000 B.C. Then, using the historical growth rates and population benchmarks, estimated that until now were born a little more than 106 billion people. Therefore, people who live only make up 6%, not explosive 75% of the total number of people ever born people. However, it is almost afghanistan certain that every person alive today, carries a small fraction of all people before himself, "said Joel Cohen, a professor at Rockefeller University and Columbia. "To this myth was true, the world should live more than 100 million people. It's just not likely, "says Cohen.
We have already mentioned that the number of population in 2013 climbed to 6.9 billion. Population increases by 1.2% every year (peak growth was in 1960 - these - 2.1% each year). Some industrialized countries such as Japan and France, have very little in the birth rate, and their population in steady afghanistan decline. In developing countries continued population growth, but some developing countries with traditionally high fertility (such as India) recently afghanistan still show a slight decline in the birthrate.
Cohen doubts that will ever come to a doubling of today's population, at 13-14 billion, let alone 100 billion. Even the most optimistic UN - these predictions do not take into account that number. For 2050 it is planned that populations grow between afghanistan 7.3 billion and 10.7 billion. Central and most likely estimate is 8, 93 billion and relies on the latest indicators of a slowdown afghanistan in the world's population. afghanistan Finally, the UN predicts that the population stabilize at 10 billion inhabitants afghanistan around 2200 g. When it comes to this, living people will never surpass the dead.
Previous article "The common language of science" - the radio transmissions of Albert Einstein
Yes, yes, and in the old encyclopedias writes in the world is 2.6 billion people, can you think of then keeping statistics and interconnectivity .... There were a lot more people, just not all entered in statistics because of underdeveloped technology ....
In what way do you think does not make sense ?!
I like the fact that the Earth can feed 17milijardi people (enough to look at the vast new territory, the desert that it is possible to irrigate, etc.) ... .Imate You more about these izracunima- budgets?
You can use these HTML tags and attributes: <a href="" title=""> <abbr title = ""> <acronym title = ""> <b> <blockquote cite = ""> <cite> <code> < del datetime = ""> <em> afghanistan <i> <q cite = ""> afghanistan <strike> <strong>
About Us Terms of Use Contact Space Astrophysics Astronomy Planets and Stars months and Sun Technology