The pest that helped kids live longer

This study explores how a devastating pest, the boll weevil, accidentally improved long-term health for children growing up in the early 1900s Cotton Belt. As the weevil decimated cotton crops, it caused a sudden drop in demand for child labor, pushing families toward education and alternative work. Men who were exposed as children to the infestation saw higher educational attainment, more migration to better-off counties, and lived about 1.1 months longer on average. The benefits were larger for Black children and those from low-education households, especially in areas with high cotton reliance and weaker child labor laws. Overall, the study estimates the boll weevil led to roughly 4.67 million life-years gained, with a monetary value near $594 billion, showing how a local crisis reshaped life chances in surprising ways.