who knows what's really true but i've been seeing more on the pole reversal recently and here's some more;

An international team of researchers suggests that low solar activity and the reversal of the magnetic field together may have cataclysmic effects that can spell the end of life. In a study recently published in the journal Science, the researchers detailed how the decline of the archaic Neanderthals and extinction of megafauna may be linked to the solar minimum a long time ago and the Laschamp excursion, a period around 42,000 years ago in which Earth’s magnetic field temporarily flipped.

Re-examining the impact of a magnetic field reversal

Earth’s magnetic field serves as a protective shield against harmful cosmic radiation. But when it flips, it becomes weaker and leaves the planet exposed to higher levels of radiation. This is the scenario for roughly 1,000 years during Laschamp.

Past studies suggest that this event had little impact on the planet. But according to the researchers, that’s possibly because the focus was not on the period during which the poles were actually shifting.

The researchers then performed radiocarbon analyses of the rings of ancient kauri trees in New Zealand to reevaluate the impact of Laschamp. This allowed them to track over time the rise in atmospheric levels of carbon-14 that was produced by increased cosmic radiation. The researchers then compared these carbon levels with numerous geologic records from all over the world to date significant atmospheric changes around the time..........more........