THE CORE OF THE PLANET — Earth's magnetic poles change position every few hundred thousand years.<br /><br />Earth's rotation around its core generates a magnetic field around the planet. This field creates two magnetic poles. Unlike the the geographical south and north poles which remain affixed, the magnetic poles are constantly shifting.<br /><br />Writing in The Conversation in January 2017, scientists from the University of Leeds said a reversal of the poles could happen in the next 2,000 years. They warn such events are difficult to predict, but speculate such an event could lead to multiple poles and a weakened magnetic field.<br /><br />This would allow more radiation to pass through onto the planet and could also impact the planet's electrical and electronic infrastructure.
