The 1815 eruption of Tambora volcanoIn Indonesia, it injected more than 100 cubic km of pyroclasts and ash up to an altitude of more than 40 km, already in the middle of the stratosphere. Volcanic gases and ash spread across the northern hemisphere, causing what in Europe was called ‘the year without summer’, with famines, massive migrations and several tens of thousands of deaths.
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Reference-www.elperiodico.com