HOW MUCH POPULATION WILL CHANGE THE WORLD – BBC NEWS

Subscribe to BBC News at www.youtube.com/bbcnews
Subscribe http://www.youtube.com/bbcnews
Check out our website: http://www.bbc.com/news
Facebook: http://www.facebook.com/bbcworldnews
twitter: http://www.twitter.com/bbcworld
Instagram: http://instagram.com/bbcnews

Over 65 will be tripled worldwide by 2050, completely changing the demographic makeup of some countries, according to a new report from the Pew Research Center.

BBC News's David Botti looks at numbers in this week's edition of Face Facts.

source