A Hitchhiker’s Guide to an Ancient Geomagnetic Disruption

A Hitchhiker’s Guide to an Ancient Geomagnetic Disruption

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A wobble in the magnetic field that occurred 42,000 years ago triggered climate shifts, droughts, and storms of radiation and ultraviolet light. The extinction of the megafauna of the Australian continent, the extinction of the Neanderthals, and the cave paintings may all date to this period. Evidence drawn from the tree rings of an ancient New Zealand tree supports this.