“What's that?” “Donut smoke” from volcanoes is a hot topic

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“What's that?” “Donut smoke” from volcanoes is a hot topic

What is that? Donut smoke from a volcano is a hot topic of conversation due to donut-shaped smoke emanating from Mount Etna in Sicily, Italy, the largest active volcano in Europe. On the 7th local time, according to reports from the BBC and other foreign sources, there is a phenomenon called a volcanic vortex ring at Mount Etna...