An international group of scientists led by Hana Yurikova studied the isotopes of the element boron in calcareous rocks.
Scientists' results showed that eruptionsvolcanoes in the then-active Siberian Traps basalt province released huge amounts of carbon dioxide into the atmosphere. These emissions lasted for several millennia and led to the strongest greenhouse effect in the late Permian period, causing severe warming and ocean acidification.
Dramatic changes on land have affectedproductivity and ocean nutrient cycling and ultimately led to widespread ocean deoxygenation. As a result, several environmental factors combined to wipe out a wide variety of groups of animals and plants.
“We are dealing with a cascading disaster in whichAn increase in carbon dioxide in the atmosphere triggered a chain of events that sequentially destroyed almost all life in the seas, emphasizes Dr. Yurikova. “Ancient volcanic eruptions of this type cannot be directly compared to anthropogenic carbon emissions. In addition, all modern fossil fuel reserves will not be enough to emit so much carbon dioxide in hundreds of years, let alone thousands, as was the case 252 million years ago. But astonishingly, humanity's CO2 emissions are currently 14 times higher than annual emissions at a time when the greatest biological disaster in Earth's history is underway."
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