I have written articles in the past about the changing demographics and its affect on the world. The reality of what is in store is hard for many to believe and the consequences are earth shattering. The following video articulates the research in a way that is easily understood. I am not sure who is responsible for the video, but it is well worth the time to play it.
For more information on the subject that includes data and social science research sited, go to: http://unitedfamilies.org/default.asp?contentID=261