'Volcanic winter' likely contributed to ecological catastrophe 250 million years ago: study

A team of scientists has identified an additional force that likely contributed to a mass extinction event 250 million years ago. Its analysis of minerals in southern China indicate that volcano eruptions produced a "volcanic winter" that drastically lowered earth's temperatures—a change that added to the environmental effects resulting from other phenomena at the time.

from Phys.org - latest science and technology news stories https://ift.tt/3FrxOy2

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