The world’s population is currently around 8.2 billion. Wait, is it actually? A new study suggests that governments, international bodies, and researchers may have dramatically underestimated the number of humans currently living on Earth. ADVERTISEMENT The reason, they say, is that most datasets severely underestimate the number of people living in rural environments that are tricky to track and report. Researchers at Aalto University in Finland analyzed the five most widely used global population datasets – called WorldPop, GWP, GRUMP, LandScan, and GHS-POP – and concluded they were potentially missing between 53 percent to 84 percent of the rural population….