Transitional Geomagnetic News Today : Breaking News, Live Updates & Top Stories | Vimarsana

The field of dendrochronology studies tree rings. The latter can convey accurate information about the age of trees, climate trends, and past events going

Some 42,000 years ago, Earth’s magnetic poles switched, causing the magnetic field around the planet to temporarily collapse. According to a new study, the shift was apocalyptic, sparking major climate shifts filling the skies with electrical storms, widespread auroras, and cosmic radiation. The researchers even argue these major climate shifts and may have had a decisive role in the extinction of the Neanderthals and the giant megafauna that once roamed Australia. It’s easy to assume that Earth’s magnetic poles are stable — north is north and south is south. However, the magnetic p...

February 18, 2021 at 3:02 pm A flip-flop of Earth’s magnetic poles between 42,000 and 41,000 years ago briefly but dramatically shrank the magnetic field’s strength — and may have triggered a cascade of environmental crises on Earth, a new study suggests. With the help of new, precise carbon dating obtained from ancient tree fossils, the researchers correlated shifts in climate patterns, large mammal extinctions and even changes in human behavior just before and during the Laschamps excursion, a brief reversal of the magnetic poles that lasted less than a thousand years. It’s the firs...

Researchers have used the rings of ancient trees to pinpoint the last time the Earth was left defenceless from cosmic rays, linking it to seemingly unrelated events 42,000 years ago.

Ancient swamp kauri records reveal breakdown of Earth's magnetic field 42,000 years ago.