Charlotte Edwards, Digital Technology and Science Reporter
Feb 19 2021, 7:25 ET
Updated: Feb 19 2021, 12:45 ET
Charlotte Edwards, Digital Technology and Science Reporter
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A DISASTROUS collapse of the Earth’s magnetic field wiped out the Neanderthals and could happen again, according to a new study.
Researchers say the event left Earth exposed to burning cosmic radiation and, unfortunately, think we re overdue a repeat.
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The Earth is protected from cosmic radiation by a magnetic field that stems from its magnetic polesCredit: Getty Images - Getty
Earth s magnetic field shields us from the cosmic radiation of space.
It stretches out from Earth s magnetic poles located at the north and south of the planet.
Earth s magnetic field switch caused apocalyptic climate change
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Science and Research – Ancient kauri trees reveal a turning point in Earth s history 42,000 years ago – NIWA
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IMAGE: Using an ancient kauri tree log from Ngāwhā, New Zealand, scientists have dated the timing and environmental impacts of the last magnetic pole switch. view more
Credit: Nelson Parker (www.nelsonskaihukauri.co.nz)
The temporary breakdown of Earth s magnetic field 42,000 years ago sparked major climate shifts that led to global environmental change and mass extinctions, a new international study co-led by UNSW Sydney and the South Australian Museum shows.
This dramatic turning point in Earth s history - laced with electrical storms, widespread auroras, and cosmic radiation - was triggered by the reversal of Earth s magnetic poles and changing solar winds.