World Population, The Rise and Fall of Population Growth

The total number of persons on the planet is referred to as the world population.

Following the Great Famine of 1315-1317 and the end of the Black Death in 1350, the human population increased steadily to over 370,000,000. Between 1955 and 1975, the world's population grew at a rate of more than 1.8% per year, peaking at 2.1% between 1965 and 1970. Between 2015 and 2020, the growth rate fell to 1.1%, and it is expected to fall further in the twenty-first century. The world population continues to grow, but there is tremendous uncertainty regarding its long-term trajectory due to shifting fertility and death rates, as well as the fact that we do not know what diseases or natural disasters may emerge in the future.

Key Questions to answer:

· Top 7 Countries with the highest Populations in 2020, 2021, 2022, 2023

· Top 7 Countries with the lowest Populations in 2020, 2021, 2022, 2023

· What is the Annual Population growth since 1960 – 2023 and Population growth projections till 2030?

· What is the average male and female life expectancy in 2023?

· Top 7 countries with the highest Life expectancy in both genders

· Population difference between 2020 – 2023

· Top 20 countries with the most land area per square kilometer

· Top 10 countries by percentage contribution to global population.

Insight

1. Top 7 Countries with the highest Populations in 2020, 2021, 2022, 2023.

According to the data visualization,

China had the highest population from 2020 to 2022, with India trailing behind, then India surpassed China to become the most populated country with a 0.07% margin in 2023. The United States, Indonesia, and Pakistan have held their positions for the 2020-2023 time period. Brazil was ahead of Nigeria in both 2020 and 2021, but Nigeria surpassed Brazil in both 2022 and 2023.

2. Top 7 Countries with the lowest Populations in 2020, 2021, 2022, 2023

With India, China, the United States, Indonesia, Pakistan, Nigeria, and Brazil as the top 7 most populated countries,

it is also necessary to investigate the least populated countries. According to the data visualization, Vatican City is the least inhabited of the world's countries, with a population of only 820 as of 2022, the Vatican City is the world's smallest totally self-governing nation-state. It is an absolute monarchy led by Pope Francis, who also acts as the Roman Catholic Church's spiritual authority. Since 1929, it has been recognized as a country. Following the Vatican City are Tokelau, Falkland Island, Niue, Montserrat, Saint Pierre, and Tuvalu.

3. What is the Annual Population growth since 1960 – 2023 and Population growth projections till 2030?

A prediction was worked on, and the results suggest that by 2030, there may be 8.6 billion people on the planet. While the global population is anticipated to keep growing until around 2100.

From one nation or region to another, the rate of population growth varies significantly. Between now and 2050, the world's population is predicted to expand by more than half, primarily in India, Nigeria, China, the United States, and other countries. The struggle for the nation with the most people particularly fascinating is the fact that India, which just 0.07% ahead of China in 2023, may pass China as the world's most populated country by 2030.

4. What is the average male and female life expectancy in 2023?

According to the data visualization, female life expectancy is around 3.38% higher than male life expectancy.

The average male lives up to 71 years, and the average female lives up to 76 years. Global life expectancy is expected to rise further, reaching 80.1 years by 2050. Significant factors influencing life expectancy data include expectations about humanity's ability to lessen the burden of AIDS/HIV and other contagious and non-communicable diseases, as well as the potential avoidance of a war.

5. Top 7 countries with the highest Life Expectancy in both Genders.

With the world's most and least populated countries, it should be required to examine the factors of life expectancy in seven different countries to better comprehend the prospective age gap between male and female.

According to the data visualization, Monaco has the highest male and female life expectancy, followed by Hong Kong and Japan, which have greater female but lower male life expectancy. We can observe that Vatican City ranks last among the top seven countries with the highest life expectancy. This demonstrates that females outlive males.

6. Population difference between 2020 – 2023.

The population increased significantly from 2020 to 2023, with increases of 0.23 percent between 2020 and 2021, 0.25 percent between 2021 and 2022, and 0.18 percent between 2022 and 2023.

The estimated population after the COVID 19 epidemic in 2020 was around 7.82 billion, however as of 2023, there are already 8.03 billion people on the earth, indicating a 0.66% rise.

7. Top 20 countries with the most land area per square kilometer.

The fact that there are approximately 8.03 billion people on the planet should be sufficient justification for determining the precise extent of land occupied by this population. To better understand this, I had to narrow the list of countries with the largest land areas down to about 20.

According to the data visualization, Russia has the largest land area, with about 16.3 million square km, despite not being one of the 7 most populous nations in the world. China, with about 9.42 million square kilometers in land area, is second only to Russia. United States, with a land area of around 9.15 million square kilometers, comes in second place to China. After Peru 1.28 million square kilometer land area, Niger has the smallest land area that’s 1.27 million square kilometer land area among the top 20 countries.

8. Top 10 countries by percentage contribution to global population.

The visualization shows that China and India both contributed almost the same percentage of the global population (0.178% and 0.179% respectively).

We can observe that the top 10 countries that contributed the most growth are only responsible for 0.574% of the growth overall.

Finally, whereas previous population increases are very well understood, future projections are less certain. Most population specialists agree that population growth will continue at a slower pace, until the Earth's population hits its limit and begins to decline.

Poverty, inequality, and increasing urbanization, according to experts, will have the opposite impact and cause growth to increase, notably in Sub-Saharan Africa and portions of Asia, where population growth is already much faster than the world average.