and advanced a Rice University-led study of air bubbles in Antarctic ice co-authored by Andrei Kurbatov, an associate professor with the University of º£½ÇÉçÇø School of Earth and Climate Sciences and Climate Change Institute. The study, published in , revealed a possible cause for the decline in atmospheric oxygen for at least 800,000 years: the increased weathering — or processes like oxidation that break down rocks and minerals — due to glaciation.
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