The question of interest to a considerable number of the population from children to the elderly: "How many people are there on the planet?" Of course, it is impossible to answer with absolute accuracy, since every minute in the world someone is born and someone dies. According to estimates, in 2012, the seven billionth person on Earth from those living today was born, therefore, the answer to the question of how many people on the planet now is more than seven billion.
A bit of history
For forty thousand years before our era, about forty billion people were born, and in 1990 about fifteen billion. In 1900, there were no more than two billion people on Earth, and in 1950 already more than two and a half, in 2005 - more than five. As we can see, the population began to grow rapidly only 120 years ago.
What determines how many people on the planet
During diseases and epidemics, a huge number of people died. For example, from the plague from 1346 to 1352. The bubonic plague, the Great Pestilence, the Black Death - this was the name given to this terrible disease. It wiped out a quarter of the world's population. Smallpox - one hundred out of a hundred thousand people died from it. This disease spared no one. Flashstopped after vaccination. An acute intestinal infection - cholera - claimed the lives of more than forty-three million people. Typhus, accompanied by a mental disorder on the background of fever, claimed more than three million lives. Up to three million people die from malaria and dengue every year. More than forty million have died from AIDS, "the plague of the twenty-first century" is the second name for the virus. We see how many people on the planet have died and continue to die from various diseases.
Hygienic procedures until the twentieth century were neglected by the majority of the population. Consequently, infections developed, immunity weakened, and life expectancy was reduced. Only rich people could use soap. Those who still followed the cleanliness (there were few of them), but did not have the opportunity to purchase soap, used various tinctures on the ashes and cleanings.
The lack of medicines also affected how many people on planet Earth could live. Antibiotic, the strongest antimicrobial drug, was discovered in 1928 by Alexander Fleming. For this discovery, he received the Nobel Prize. Later, antifungal agents and antiviral agents appeared. It is today that we can go to a pharmacy and buy a lot of medicines, but just a hundred years ago, our ancestors could only be treated with herbs, and even then not always.
Medicine has stepped far forward: operations, organ transplantation, the emergence of various drugs to maintain the vital activity of organs - all this has increased life expectancypopulation.
During the formation of states, there were many wars for territory. During the Second World War, more than fifty million people died, in the First - more than twenty-five million. In the entire history of the planet, there have been approximately 15,000 wars, and more than three and a half billion people have died.
The number of people on the planet depends directly on how many of them are born. One hundred and fifty years ago, there were seven deaths per ten newborns. With the advent of maternity hospitals, qualified medical care, the death rate of newborns has decreased thousands of times.
All these factors have influenced and continue to influence the population of the Earth. According to scientists, by 2050 there will be more than eleven billion people on the planet.
