Ancient tree shows result of magnetic pole switch


LONDON, 5 March, 2021 − Here is the news of the world from 42,000 years ago. Imagine a dramatic shift in global climate during the last Ice Age; a co-incident extinction of one human species and a range of giant Australian mammals; a devastated ozone layer and astonishing displays of auroras over the tropics, all triggered by a simple but unimaginable shift.

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