British scientists were eager to try out their new air pollution monitoring equipment – to their amazement, readings in Newcastle, England, showed that it was the most polluted city in England, if not the world. What could possibly be causing these extraordinarily high results? A strange hitherto undiscovered weather anomaly? A series of gigantic coal plants that had somehow been overlooked?
In time, the true reason was discovered. Technicians had forgotten to double-check where in Newcastle their equipment had been placed – by a junior staffer. It was in a parking lot where dozens of diesel trucks came and went twenty-four hours a day!