A single volcanic eruption caused one of the planet's most devastating mass extinctions, scientists discover

A single volcanic eruption caused one of the planet's most devastating mass extinctions, scientists discover
(Natural News) Geologists now believe that a massive volcanic eruption was the cause of the late Ordovician mass extinction. This is the second recorded biodiversity depletion out of five that scientists have recorded. Previous research has shown that an asteroid impact caused the fifth mass extinction, whereas the third and fourth mass extinctions were brought…
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