The map shows the location of the 307 rural areas analyzed in the study. The reported populations in the graphic were found to be underestimated by between 53 and 84%. Credit: Josias Láng-Ritter et.

The world’s population is expected to grow by more than 2 billion people in the next decades and peak in the 2080s at around 10.3 billion, a new report by the United Nations said Thursday. The report ...