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flag Study reveals volcanic eruptions 294 million years ago caused CO2 spike, triggering ancient global warming.

flag Scientists from the University of St Andrews analyzed fossil brachiopod shells to study CO2 levels during the Late Palaeozoic Ice Age, 335 to 265 million years ago. flag They found that CO2 levels remained low until a sudden rise around 294 million years ago due to volcanic eruptions, leading to global warming and ice melting. flag The study, published in Nature Geoscience, highlights CO2's crucial role in climate regulation and warns of potential future impacts from unchecked emissions.

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