"The Enigma of Earth's Magnetic Pole Reversals"
Earth's magnetic field, generated by the flow of molten metallic material in the outer core, has shifted and reversed in polarity many times in the past due to fluctuations caused by the movement of metallic material in the outer core. During periods of low geomagnetic field intensity, the atmosphere is more exposed to solar wind and cosmic rays, with potential impacts on technology and civilization. While there is no significant evidence linking mass extinctions to geomagnetic polarity reversals, the sporadic nature of these variations means their exact timing cannot be predicted, posing potential risks to society and technology.