"Earth’s magnetic field is acting up & geologists don’t know why": https://www.nature.com/articles/d41586-019-00007-1 "Erratic motion of north magnetic pole forces experts to update model that aids global navigation"
"Earth’s magnetic field is acting up & geologists don’t know why": https://www.nature.com/articles/d41586-019-00007-1 "Erratic motion of north magnetic pole forces experts to update model that aids global navigation"