How many of us will there be in 2100
According to the latest United Nations report, the world’s population will continue to grow relentlessly, reaching 10.4 billion, passing through 8.5 billion in 2030 and 9.7 billion in 2050.
The countries whose populations are forecast to grow the most are the African ones, given their high fertility rate, that is, the average number of children per woman. In general, the countries that will contribute most to population growth will be the less wealthy ones, while the countries where wealth is concentrated will see their populations decline.
In Italy, for example, a population of 37 million people is estimated for 2100. A key factor in population growth is undoubtedly the increase in average life expectancy, and therefore a large number of elderly people.
However, there is also a contrarian forecast from the economist James Pomeroy, who maintains that the population in 2100 will halve, because even though fertility in the poorest countries is higher than in the richest ones, it is still declining. Global average fertility is estimated to be 2.1 (children per woman) in 2050; it is now 2.3, but in 1950 it was 5.
