Python software code to be run on Google Colab

Does space weather influence human behavior? Examining homicide rates from 1990-2021 across developed nations reveals a striking pattern: geomagnetic disturbances driven by solar wind correlate positively with violent crime in the United States, Canada, United Kingdom, Australia, New Zealand, and South Africa (r = 0.65-0.87, p < 0.001). However, in Brazil and Uruguay—countries at similar latitudes but positioned beneath the South Atlantic Magnetic Anomaly where Earth's magnetic field weakens to 60% of normal strength—this relationship inverts (r = -0.75 and -0.49). This geographic specificity, occurring precisely where geophysics predicts altered electromagnetic environments, provides compelling evidence for genuine solar-terrestrial effects on human behavior and offers a natural experimental framework for investigating how Earth's protective magnetic shield mediates space weather impacts on biological systems.