http://www.helium.com/knowledge/190626-what-would-the-world-be-like-with-2-billion-people.xml Helium.com > Sociology > What would the world be like with 2 billion people? en-us Copyright Helium.com Fri, 10 Oct 2008 17:24:29 GMT Fri, 10 Oct 2008 17:24:29 GMT