05
Feb
2012
http://www.bbc.co.uk/news/magazine-16870579
http://www.bbc.co.uk/news/magazine-16870579
Do the dead outnumber the living?
www.bbc.co.uk
The population of the planet reached seven billion in October last year, according to the United Nations. But what’s the figure for all those who have lived before us?
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