https://en.wikipedia.org/wiki/List_of_countries_by_future_population_(United_Nations,_medium_fertility_variant)
Sorting from greatest to least, in terms of UN projected population in the year 2100:Nigeria is going to grow from 200 million to
750 million, and become #3 in population
The
DRC is going to grow from 90 million to
390 million, and become #5.
Tanzania is going to grow from 60 million to
300 million, and become #7. Ethiopia from 110 million to
240 million, becoming #9.
Niger from 24 million to
210 million, becoming #10.
Uganda from 45 million to
200 million, becoming #11.
Kenya from 50 million to
155 million, becoming #17.
Angola from 30 million to
140 million, becoming #19.
Mozambique from 30 million to
130 million, becoming #20.
Sudan from 45 million to
125 million, becoming #21.
Madagascar from 30 million to
105 million, becoming #23.
Zambia from 20 million to
105 million, becoming #25.
Ivory Coast from 20 million to
100 million, becoming #26.
Mali from 20 million to
90 million, becoming #27.
Other countries with huge population booms will be
- India (#1 at 1.7 billion... while China decreases to only 1.01 billion at #2)
- the USA at #4 with 450 million
- Pakistan at #6 from 210 million to 365 million
- Egypt at #12, from 100 million to 200 million
- Philippines at #15, from 105 million to 170 million
- Iraq at #16, from 40 million to 165 million
Like China, the countries of Indonesia (#8), Brazil (#13), Bangladesh (#14), and Russia (#22) will actually lose population... while Mexico (#18) & Vietnam (#24) only slightly gain.
And then we have Turkey at #28, Japan at #30, UK at #32, France at #34, Germany at #40, Italy at #49, Australia at #53, South Korea at #61, Spain at #62, Israel at #81, Norway at #109, Greece at #111, Finland at #121, for some reference.
Africa is going to experience a huge population boom, and
will become home to about half of the total human population.
The African Union also has the potential to gain strength, and
the AU already plans to create a common currency, central bank, and free trade area by 2023. It has also already shown it is capable of conducting military operations.
These countries are also industrializing at a rapid pace, and we may soon see an African version of the "Asian Tigers" like what happened with Singapore, Hong Kong, Taiwan, and South Korea.
What will be the impact of all this on international politics in the 21st Century?