Population distribution of seven continents in the world 20 15

According to United Nations statistics, the total population of the world has reached 7.6 billion. The specific situation of each continent is arranged as follows according to the number of people:

Asia: 4.54 billion, accounting for 60% of the world population.

Africa: 65.438+28 billion, accounting for 654.38+06% of the world's total population.

Europe: 742 million, accounting for 10% of the world population.

North America: 550 million (developed countries in North America, the population of the United States and Canada is 363 million) accounts for about 8% of the world's total population.

South America: 390 million (the population of poor countries in Latin America, including Mexico, Cuba and the Caribbean, is 65 1 billion), accounting for about 5.5% of the world's total population.

Oceania (Australia plus New Zealand plus Pacific island countries): 0.4 1 billion, accounting for about 0.5% of the world's total population.

Antarctica: There are only some researchers and whaling teams from other continents in Antarctica, and there are no settled residents.

The population of the extended data world refers to the total population of the world (earth) at a certain moment. According to the US Census Bureau, as of 20 13, 1.4, there are 7.057 billion people in the world. According to the data of the US Census Bureau, the global population exceeded 7 billion in March 20 12. According to the United Nations Population Fund, the global population will reach 7 billion in 20 1,1,3 1, 20 14 years. In 20 16, the world population reached 7262306342(72623 1 000).

The world population has been increasing since the Black Death and the Great Famine in Europe in 1950s, when it was about 370 million. Subsequently, due to factors such as war, the growth rate was sometimes fast and sometimes slow. After the end of World War II, from 1960s to 1950s, due to the decrease of factors (such as wars and famines) that caused the population growth to slow down, the world population growth rate obviously accelerated-exceeding 1.8% every year. This state continued until 1970. From 65438 to 0963, the world population increased by 2.2%, reaching a historical peak. Subsequently, with the development of economy, people's concept of fertility has changed, and the population growth rate has gradually declined. 20 1 1 The annual world population growth rate is about 1. 1%. It is estimated that by 2040, the world population will reach 8 billion.

Current forecasts show that the world population will continue to grow in the coming decades. However, it is difficult to estimate the decline of birth rate and other factors, so it is impossible to get a specific value. It can only be concluded that in 2050, the world population will be between 7.5 billion and 654.38+005 billion, depending on the rate of birth rate decline. In the long run, it is estimated that the world population will stop growing and decline slowly from 2050 to 2 150. At the same time, some analysts are also worried about the sustainability of population growth.

References:

Baidu encyclopedia world population