Resources
World population trends
Resource date: Aug 2017
It took hundreds of thousands of years for the world population to grow to 1 billion – then in just another 200 years or so, it grew sevenfold...
Resources
Resource date: Aug 2017
It took hundreds of thousands of years for the world population to grow to 1 billion – then in just another 200 years or so, it grew sevenfold...
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