The answer is because white people will account for less than 5 percent of the future population growth*. Fertility rate in Europe ranges between the lowest 1.2 in Slovakia to the highest 2 in Iceland [pdf]. Africa has the highest fertility rate that reaches up to 7 in Niger [Source].
The first picture below depicts developed countries (mainly North American, Europe and Australia) in blue and the second picture shows the fertility rate in the world. Notice that USA’s fertility rate is higher than Europe for many reasons. One of these reasons is that number of non-white families is higher than in Europe. Russia’s population is falling from 148 million in the 1990s to 142 million [National Geographic].
Below is a graph that shows the difference of population growth between developed and less developed countries.
Source: Population Reference Bureau
Now, can you guess in what country the picture below is taken?
Source: National Geographic
Most probably you didn’t guess right but these Indians are at a Sikh festival in Barcelona.
You can read more about “how your world will change” and see some pictures in National Geographic latest issue (January 2011) or check this link.
Do you think if Europeans stayed at this low fixed propagation rate they may disappear in the future? Why do you think they have low birth rate although they are the richest in the world?
* “The less developed world will account for more than 95 percent of future population growth” National Geographic Magazine, January 2011.