According to a UN estimation, the world's population will pass the 7 billion mark on Monday. 7 billion is a number that is hard to perceive, It raises questions: How does this number spread among the countries? How is population growth today different than the way it used to be in the past?
It is interesting to see information (that is usually presented with dry numbers) presented in a different way. A beautiful visualization for the population growth by NPR:
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