The population article should start from historical numbers. Asia had 75 percent of the world population, and Europe had 10 percent, till the early 19th century. Today European populations (including the Americas) are 30 percent of the world population. Asia has fallen to 57 percent. 

In other words, European populations have grown three times faster than Asian populations. The prime reason for this is the ability to emigrate to the fertile lands of the Americas. 

The fair solution would be for European populations to stop having kids and restore historical averages,