Cooling after volcanic activity 'may have triggered mass extinction event' - The Irish News

Cooling after volcanic activity 'may have triggered mass extinction event' - The Irish News
Scientists looked at a cooling event that took place 450 million years ago.
Two intense spells of volcanic activity triggered a period of global cooling and falling oxygen levels in the oceans, and may have caused one of the most severe mass extinctions in the history of the… [+1954 chars] Read More



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