This is a huge problem, mostly because prosperity will not nearly increase as much as the population. Former Dutch VVD leader Frits Bolkestein said that for their and our sake, European countries should start getting serious in spending development aid on increasing access to contraceptives in Africa, and I wholly agree.
That's true, but a hard sell for the voters in each country.
A good idea would be to increase development aid for Africa by the amount that the silly EU-commissioner Oettinger from Germany wants to increase the next EU budget, despite the UK exiting the bloc.
This guy and several others indeed not only want to make up the gap left by the UK but also to increase the budget further ...
Austria, Denmark, the Netherlands and Sweden are against, and rightly so.
Especially African women need to get much more education and access to contraceptives. Sadly, this is battled by the fascist US-led Evangelical Church (maybe the Catholibans too ?) and their Muslim extremist counterparts, who see contraceptives as the "tools of the devil" ...