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New model links carbon-13 spike to Great Oxidation Event 2.45 billion years ago Phys.orghttps://news.google.com/rss/articles/CBMieEFVX3lxTE51OHloTmNnM0N0aGVNenRsTlItYm5UWkpWeUtzTm12eDVZMGRVLXA5LVdyOVNEclRNeFg3VjFJOHE0TGl5SHV2ZnZIQWFZSnFzcGtKckJTd24zUExQajBLTGVrNGxraGkzU29lS3ZNNzFQMlVQVVdHYQ?oc=5
2026-03-20 23:40:01Z
CBMieEFVX3lxTE51OHloTmNnM0N0aGVNenRsTlItYm5UWkpWeUtzTm12eDVZMGRVLXA5LVdyOVNEclRNeFg3VjFJOHE0TGl5SHV2ZnZIQWFZSnFzcGtKckJTd24zUExQajBLTGVrNGxraGkzU29lS3ZNNzFQMlVQVVdHYQ