Northwestern Now News·3 min read·medium
Tiny fossils crack a Cretaceous cold case
✦AI Summary
Northwestern University researchers have linked a 113-million-year-old mass extinction event to ocean acidification caused by massive volcanic eruptions. By analyzing calcium isotopes in ancient fossils, the team confirmed that CO2-induced acidification hindered shell-building organisms.
Ancient ocean acidification triggered one of the ocean’s most severe extinctions
scienceenvironmentclimate
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