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| Version 0 | Version 1 |
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| Seven billion and counting | Seven billion and counting |
| (about 9 hours later) | |
| All this week the BBC News website will be looking at the issues raised by the growth in the world's population. On Tuesday, find out how many people were alive on the day you were born. href="http://www.bbc.co.uk/7billion" >www.bbc.co.uk/7billion |