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https://shorturl.at/veAZe New research reveals that volcanoes may have been the unsung heroes behind Earth’s oxygen-rich atmosphere. The study zeroes in on the Great Oxygenation Event—a transformative period billions of years ago when oxygen levels spiked, paving the way for complex life. While cyanobacteria, tiny photosynthetic organisms, are credited with producing this oxygen, scientists now say volcanic activity supplied the critical nutrients these microbes needed to flourish. The key player? Phosphorus. The study shows that ancient volcanic eruptions released massive amounts of this nutrient into the oceans, supercharging cyanobacteria growth and oxygen output. Using advanced computer models, researchers simulated early Earth conditions to uncover how volcanic activity, nutrient cycles, and oxygen production were intertwined. These findings reshape our understanding of Earth’s history and highlight how geological forces helped spark the evolution of life as we know it. P. Geo. Ricardo A Valls, M. Sc. and Geo Gadfly Valls Geoconsultant ORCID ID- https://orcid.org/0000-0002-5421-0914 Scopus Author ID: 7003369619/35335510700 ResearcherID: S-6604-2018 If you like this content, please "buy me a coffee" https://www.buymeacoffee.com/goldendroplets