Magnetic reversal: no panic
By Gwynne Dyer Feb. 11, 2019
The consensus among scientists is that the surface of the planet is not bombarded by hard radiation during the intervals when the Earth’s internally generated magnetic field all but disappears for a time. Instead, the solar wind itself induces a magnetic field in the extreme upper limit of the planet’s atmosphere (the ionosphere) that stops incoming high-energy particles from reaching the surface.
The North Magnetic Pole and the North Geomagnetic Pole in 2017, shown on a map together with the geographic North Pole. Image courtesy of Wikipedia