Helium.com Sociology http://www.helium.com/channels/851-Sociology.xml Helium.com Sociology en-us Copyright Helium.com Tue, 14 Oct 2008 09:58:17 GMT Tue, 14 Oct 2008 09:58:17 GMT What would the world be like with 2 billion people? http://www.helium.com/knowledge/190626-what-would-the-world-be-like-with-2-billion-people Knowledge: What would the world be like with 2 billion people? Fri, 10 Oct 2008 17:24:29