7 billion people and you: FAQs
BBC News - UK
Where did you get the information from? The data is provided by the Population Division of the Department of Economic and Social Affairs at the United Nations, which prepares demographic estimates and projections for all countries and areas of the world. Their data serves as a consistent set of global population figures and may differ from your country's own figures. The latest data is found in the UN Population Division's 2010 Revision of the World Population Prospects, released on 3 May 2011. The division issues a new revision every two years. The next one is due in the first half of 2013.
,…(3 November 2011)