The milestone, to be declared on October 31, 2011, is a huge spike from less than a century ago. In 1927, the global population was only 2 billion. Only 13 years ago, the population was at 6 billion, the U.N. says.Have a look at people, possibilities and the challenges that come with dramatic population growth here.
Time to do some planning and invest in people power!
Illustration credit: State of World Population 2011