World Population Calculation 20, World Population Calculation

World Population Change 1960-2018 Data show the population growth of each country in the world population from 1969 to 2018.

As of 2021, the total population of the world is about 7.8 billion, and the current population is actually very saturated, and the population is mainly concentrated in habitable areas, and many parts of the world are still very poor and unsuitable for human habitation.

The most populous countries in the world are our country, India, the United States, Brazil, etc., which together account for a considerable part of the total population.

Sustained population growth is not a good thing, although the replacement is fast, but the development still cannot keep up with the speed, and the population growth rate of developing countries is much faster than that of developed countries.

According to the World Population Report of the United Nations Population Conference, published in London on 11 July 1995, the total number of people in the world in 1995 was 5.7 billion. The illiterate population is 100 million, of which 2 3 are women and 1 3 are children. It is estimated that the number of people added globally will remain above 86 million per year.

The world's population will reach 7.1-7.8 billion by 2015, more than 8 billion by 2025, and 9.4 billion by 2050. According to scientists' analysis, the world's population will peak at 10.6 billion by 2080, and will gradually decline thereafter, falling to 100 million by the end of the 21st century.

On October 31, 2011, according to the United Nations Population, the global population will exceed the 7 billion mark on October 31, 2011The rapid increase in population has put pressure on the world's natural resources and ecological environment, and has also brought challenges to the development and stability of all countries.

Current projections all show the world's population.

It will continue to grow in the coming decades, but it is difficult to estimate the birth rate.

It is not possible to come up with a specific number, but it is concluded that the world's population will be between 7.5 billion and 10.5 billion in 2050, depending on the rate of decline in the birth rate. In the long run, it is estimated that the world's population will stop growing and decline slowly around 2050-2150. At the same time, some analysts have expressed concerns about whether population growth can be sustainable.

Specific distribution of the world's population:

There are about 200 countries and regions in the world.

Among them, there are 13 countries with a population of more than 100 million, including China, India, the United States, and Indonesia.

Brazil, Pakistan, Russia, Nigeria, Bangladesh.

Japan, Mexico, Philippines and Ethiopia.

The total population of these 13 countries has reached 100 million, accounting for about the total population of the world.

The imbalance in the distribution of the world's population is due to the natural environment of the countries of the world.

and the level of economic development, so that the geographical distribution of the population is unbalanced. The spatial distribution of the world's population is divided into densely populated areas, sparsely populated areas and largely undeveloped unpopulated areas. According to statistics, the most densely populated region on earth accounts for about 7% of the land area, but 70% of the world's population lives there, and more than 90% of the world's population is concentrated in 10% of the land.

The above content reference: Encyclopedia - World Population.

The total population of the world in 2021 is 7,868 million.

The new population is 74.23 million, the world's most populous country in Chinese mainland 31 provinces and municipalities, excluding Hong Kong, Macao, Taiwan and foreigners living in 31 provinces and municipalities 1412.6 billion, the second India 1380 million, the third United States 332 million, the fourth Indonesia 275 million.

Changes in the world's population:

As shown in the chart below, the world's population was about 2.5 billion in 1951, and by 2021, the world's population has exceeded 7.8 billion. As the global population continues to grow, other issues are emerging. Therefore, the issue of population has attracted increasing attention from the international community.

According to the United Nations, the world's population was about 1 billion in 1804, and it took about 183 years to break through 5 billion in 1987. But according to the latest**, the global population will exceed 10 billion by 2055, reaching a level of about 100 million.

Summary. Dear relatives, China's population is calculated through the census.

The Chinese census is a census conducted by *** issuing an order, formulating a survey plan, and organizing a unified population survey after necessary preparations.

After the founding of the People's Republic of China, the first three censuses were conducted irregularly, but since 1990, they have been conducted regularly, that is, once every 10 years, at the end of the year number, in the year "0", and a simple census is conducted between the two censuses.

In November 2019, the Notice on Conducting the Seventh National Population Census was issued. In accordance with the provisions of the Statistics Law of the People's Republic of China and the Regulations on the National Population Census, it was decided to carry out the seventh national population census at 0:00 on November 1, 2020.

To sum up, up to now, China has conducted the seventh population census.

How to calculate the national population.

Kiss, based on census data. Since the founding of the People's Republic of China, in order to accurately grasp the specific figures of the national population, the Tuanji has conducted a population census every ten years, that is, every ten years, all counties and cities across the country will dispatch special personnel to make statistics on the population of the areas under their jurisdiction, and then report them level by level, and finally the national statistical department will make statistics and then announce them to the people of the whole country.

Dear relatives, China's population is calculated through the census. The Chinese census is a census conducted by *** issuing an order, formulating a survey plan, and organizing a unified population survey after necessary preparations. After the founding of the People's Republic of China, the first three censuses were conducted irregularly, but since 1990, they have been changed to regular times, that is, once every 10 years, at the end of the year "0", and a simple census is conducted between the two censuses.

In November 2019, the "Notice on Carrying out the Seventh National Population Census of Sun Kai" was issued. In accordance with the provisions of the Statistics Law of the People's Republic of China and the Regulations on the National Population Census, it was decided to carry out the seventh national population census at 0:00 on November 1, 2020. To sum up, up to now, China has conducted the seventh population census.

The United Nations' World Population Prospects 2022 report predicts that the world's population will exceed the 8 billion mark on November 15, which is today.

Such a historic moment naturally caused a stir on the Internet. Many netizens stared at the "real-time numbers" scrolling on the screen, and the 8 billion "citizens of the earth" will be born in ** has also become a hot topic.

But how do we know that today, not on the 14th, or on the 16th, will definitely reach 8 billion? Is it possible for humans to calculate such an accurate number?

The answer is no.

The population management departments of countries around the world cannot "count one by one", nor can they synchronize information at all times. The judgment that the world's population will reach 8 billion on November 15, 2022 is based on the modeling and calculation of the population data of each country by the United Nations Population Division, and it is normal for it to fluctuate to a certain extent according to the actual situation around mid-November. The "World Population Clock" circulating on the Internet is only based on data from the United Nations and the U.S. Census Bureau, and is estimated using the median fertility level.

Taking a step back, even this estimate itself may not be entirely correct.

In May 2021, the data of the seventh population census was released, and China's population exceeded the 1.4 billion mark. We have established a decennial census system, but not all countries in the world can do so. The global epidemic of the new coronavirus has disrupted the census since 2020.

As mentioned in the main body of the report, 74 countries have census data dating back to before 2014, and even 11 countries and territories have the most recent census data before 2005. War, poverty, and the lack of national capacity have challenged the accuracy of population figures.

Why, then, does the United Nations solemnly announce this figure?

This is to draw attention to population issues around the world. An increasing number of people means greater environmental pressures. Achieving the harmony between population size and ecological environment requires the joint efforts of the whole world.

According to the report on the Chinese population, China will usher in long-term negative growth and deep aging, which needs to be highly valued and responded to in advance.

Two minutes before 0:00 on October 31, 2011, the 7 billionth youngest citizen of the planet was born in Manila, Philippines. This status is a symbolic designation of the United Nations. Who will be the 8 billion little citizens remains to be seen.

Friends who are in front of the screen ** "real-time data live broadcast", don't worry about missing this "historic moment".

The United Nations' World Population Prospects 2022 report predicts that the world's population will exceed the 8 billion mark on November 15, today.