BBC News – 7 billion people and you: What’s your number?»

November 7th, 2011 - 44 views

via BBC News – 7 billion people and you: What’s your number?.

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7 Billion: How Did We Get So Big So Fast? – YouTube

November 2nd, 2011 - 57 views

via 7 Billion: How Did We Get So Big So Fast? – YouTube.

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