Toen maakten stedelingen nog 20 procent van de 2,5 miljard wereldbewoners uit, nu bijna de helft van de 8,2 miljard mensen tellende wereldpopulatie.
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At that time, city dwellers accounted for 20 percent of the world's 2.5 billion inhabitants, compared to almost half of the world's population of 8.2 billion today.
Translated by
markvanroode 14633
4 months, 4 weeks ago
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