In 2018, we travel with electric cars, trains, buses, bicycles, motorbikes and scooters. We use smartphones. We live in a world of social networks. We eat organic products. And we all want to be happy and successful. There are 7.6 billion of us in the world. By 2100, this figure is expected to grow to 11.2 billion. What will life be like then?
When we hear that there will be 11.2 billion people in the world in 2100, we probably all think that people will 'multiply' in all corners of the world. However, this is not true. In some countries, such as Nigeria, the population is expected to quadruple, as it is now, while in in other countries the number of people dropped drastically.
Geographer and demographer Simon Kuestenmacher made a review that showed how the population is expected to change by region in the coming years. It is supposed to be the year 2100 in China 40 % fewer people than today. Asia's population is expected to grow gradually until 2060 - at that time, around 5.4 billion people were said to live there, representing 51 % of the world's population. For Africa, gradual population growth is expected until 2100, which means that the final population will be higher than in Asia.
They also play an important role in population growth fertility rate and life expectancy. The global fertility rate will be 2.5, which should mean that there will be up to in 2100 people had an average of two children. As the graph below shows, African countries will have very high fertility rates.
Life expectancy will also change by world region. V Western Europe, North America, Oceania and Japan will have a lifespan of more than 80 years. It is also expected that this trend will spread to the rest of the world.
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