Much of the rise in recorded natural disasters comes from better reporting, not more disasters
Counts of natural disasters rose sharply in the late twentieth century, and it is tempting to read that as proof that the planet is becoming more hazardous. Our World in Data analysis finds that most of that increase reflects improved reporting rather than a surge in events. Better satellite monitoring, global databases and the spread of communications meant that small floods, storms and earthquakes that once went unrecorded were suddenly logged. The record therefore captures how well we observe the world as much as how the world behaves. Researchers separate the two by looking at the events that were always big enough to be noticed. The distinction matters for reading the statistics correctly.
Disaster statistics are often used to make policy and insurance decisions, so mistaking better reporting for more disasters can misdirect spending. Understanding the bias helps separate genuine climate and hazard trends from measurement artefacts.
