Did you know?
Pop. of Guangzhou, China (12.7 million people) is 4 x Pop. of Madrid, Spain (3.21 million people)
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Land used for agriculture in Puerto Rico (2011) (2,000 km^2)
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.