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Study Reveals Tectonic Plates Shaped Ancient Carbon Levels

1/21/2026

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Summary

Story summary

New research shows mid-ocean ridges and continental rifts influenced atmospheric carbon over 540 million years, more than eruptions.
The study, led by researchers from the University of Melbourne, challenges the view that volcanic arcs were the primary carbon source.
It shows tectonic plate emissions helped drive transitions between icehouse and greenhouse climates.
The findings were published in Communications Earth & Environment, with implications for climate models and rising carbon dioxide levels.

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Story summary

New research shows mid-ocean ridges and continental rifts influenced atmospheric carbon over 540 million years, more than eruptions.
The study, led by researchers from the University of Melbourne, challenges the view that volcanic arcs were the primary carbon source.
It shows tectonic plate emissions helped drive transitions between icehouse and greenhouse climates.
The findings were published in Communications Earth & Environment, with implications for climate models and rising carbon dioxide levels.