8 billion people on earth: 10 facts about the world's population -unric

November 15 marks a historic milestone. The world's population reaches the 8 billion threshold. This population growth is the result of progress in public health, nutrition, hygiene and medicine.

"This is an opportunity to celebrate our diversity and progress. At the same time, it is a reminder of our shared responsibility to care for our planet," reminds UN Secretary-General António Guterres.

To mark the day, here are 10 facts about the world's population..

 

  1. 12 years to move from 7 to 8 billion people

It took 12 years for the world's population to move from 7 billion to 8 billion. It is estimated that this figure will reach the 10.4 billion threshold in the 2080s and remain at that level until 2100.

 

  1. Population growth slows down

It will take about 15 years - until 2037 - for the world population to reach 9 billion. This suggests a slowdown in world population growth.

Over the next few decades, , the population momentum will maintain the growth resulting from the high fertility of previous generations. This is despite the decline in the number of births per woman observed today. But after half a century of declining fertility, this growth is slowing down.

The fertility rate in 2020 was 1.55 in Belgium, 1.54 in the Netherlands, 1.36 in Luxembourg and 1.83 in France.

 

  1. One of the most densely populated countries in the world is in Europe

The Principality of Monaco is among the most densely populated countries in the world. In 2016, the recorded population density was 25,411.4 people per km².

The country on the European continent with the lowest population density is Iceland.

 

 

  1. Longer lives

Life expectancy at birth in 2019 was 72.8 years globally, and 80.4 years in the European Union in 2020.

While life expectancy has been increasing since the 1950s, the gaps between countries are not closing fast enough.

In low-income countries, life expectancy at birth is around 63 years, almost 10 years below the world average.

The EU regions with the highest life expectancy at birth are the French island of Corsica (84.0), the Balearic Islands in Spain (83.9) and the Epirus region in Greece (83.8). In contrast, the EU regions with the lowest life expectancy at birth are all in Bulgaria.

 

  1. Almost 5% more women than men in the EU

On 1 January 2021, there were 229 million women and 219 million men in the EU.

More boys than girls  are born in the world (for every 100 girls, there are almost 106 boys), but women live longer than men almost everywhere in the world.

 

  1. More than a fifth of the EU population is over 65

In 2019, 20.8% of the EU population was aged 65 and over.

As a result of demographic change, the proportion of people of working age in the EU is falling while the relative number of pensioners is rising.

 

  1. 281 million people live outside their country of birth

While almost 29 out of 30 people remain in their country of birth, more and more people are moving across borders.

 

  1. 44.1 years is the median age of the EU population

This means that half of the EU population is over 44.1 years old.

The European regions with the lowest median age are the French overseas regions of Mayotte and Guyana, with a median age of 17.7 and 26.3 respectively, followed by Melilla in Spain (34.4) and Brussels (35.9).

 

  1. 2 million deaths related to the Covid-19 pandemic in Europe

The Covid-19 pandemic has had a considerable impact on the population, particularly on mortality rates. Since the beginning of the pandemic, more than 2 million people have died from the disease in Europe.

 

  1. India and China are the most populous countries

 

By 2022, more than half of the world's population will live in Asia. With over 1.4 billion people each, India and China are the most populous countries today. China's population is no longer growing and could start to decline as early as 2023, while India, which is growing, is expected to become the most populous country in the world.

But by the end of the 2060s, sub-Saharan Africa is expected to become the most populous region, with 3.44 billion people by 2100.

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