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Topic 18: How many people are in the world?, image, image, image, image,…
Topic 18: How many people are in the world?
The world population
According to calculations of United Nations, in mid-2015 the population of the world was 7.35 billion, that is 7.350 million people.
The first billion reached it in the 1800s, the second 127 years late, the third in 1960, the fourth in 1974, the fifth in 1987, the sixth in 1999 and the seventh in 2011
Now 267 children are born in the world and
107 people die per minute
Of these are 26 births and 23 deaths per minute in developed countries and 241 births and 84 deaths per minute in poor countries.
Birth and mortality
The average number of people born in a specific place and time is called birth.
The number of people, who die in a specific place and time is called mortality
The continent that has the highest birth rate and the highest mortality rate is Afria
The continent that has the lowest mortality rate and the lowest birth rate is Europe
Demographic transition
Before the 18th century: high birth and high mortality rate
From the 18th century: High birth and low mortality rate because the conditions of life and the medicine improved
This phenomenom is called "demographic transition", began in Europe
Between 1800 and today the world population has multiplied by seven sometimes approximately
Continents’ population
At the beginning of the Christian era: Asia and Europe, the "old" continents have lost in percentage. And they have gained percentages today: Africa, America, and Oceania
China is the most populated country which has more inhabitants (1,400 million) that the entire American continent or that the entire African.
In the year 2100, the most populous country in the world would be India (1.660 million), followed by China (1,000 million), Nigeria (752 million), the United States (450 million), and the Democratic Republic of the Congo (389 million)
Population disproportions
North America is the most urbanized continent (81%). Africa and Asia are the least urbanized (41%). The other continents have a greater urban population: Latin America (78%); Europe (74%) and Oceania (73%).
Their relationship could be established that all developed countries are now populated by 1.3 billion inhabitants
The disproportion is inverse. Rich or developed countries (which are few) concentrate the consumption of 73% of energy and accumulate 97% of the world's wealth.
Ecuadorian population
Actuality: Ecuadorian population is just 1.16% of the Chinese population and 0.22% of the population world.
Between 1800 and today: The population of Ecuador passed from half a million inhabitants to 16 million, that is, in 215 years it has multiplied at least 30 times
1950-1972: Ecuadorians were not more than 3.5 million and that in 1972 they reached 6.4 million.
