Most estimates place Earth’s human population at around 8.2 billion, but Josias Láng-Ritter—a postdoctoral researcher at ...

Our estimates of rural populations have systematically underestimated the actual number of people living in these regions by at least half, researchers have claimed – with potentially huge ...

When trying to count such a massive population, a few hundred or maybe even a few thousand may slip through the cracks. But a few million or even billion would upend our understanding of human ...