What Is The Answer To This Increasing Problem?
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A rigorous and effective contraception programme.
Stem the problem at source.
http://www.voanews.com/content/africa-to-record-largest-population-growth-over-next-40-years/1748380.html
From the link:
Sub-Saharan Africa, where fertility rates are among the highest in the world, will account for the majority of the increase. In sub-Saharan Africa, the population is expected to grow from 926 million people to nearly 2.2 billion people.
Africa's population explosion has the potential to zoom past current estimates, said Carl Haub, a senior demographer at the Population Reference Bureau, a Washington-based non-profit group.
“Sub-Saharan Africa has, without a doubt, the greatest population growth potential of any region," said Haub. "The projection today is that it will increase by about two and a half times. But the important thing to remember is that even that projection assumes that the birth ate in sub-Saharan Africa will decrease. And in many of those countries today, it [has] not.”
The Population Reference Bureau report shows that women in sub-Saharan Africa currently average 5.2 children during their lifetime, compared to averages of 1.6 in Europe and 1.9 in North America.
In some African countries, such as Niger, the birth rate is as high as 7.6 children per woman. And even the assumption that this rate will decline steadily over the coming decades, the population of Niger is still expected to nearly quadruple by 2050, according to Haub.
It is simply unsustainable.