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A 2-Billion-Year-Old Clue Challenges a Popular Earth Science Theory

Summary by Sci Tech Daily
A key geological clue to a global disruption in Earth’s ancient carbon cycle may have a more local origin. Between roughly 2.5 and 2 billion years ago, Earth underwent the greatest chemical transformation known from its surface history as oxygen accumulated in the atmosphere. That shift ultimately helped create conditions for complex organisms such as [...]

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A 2-Billion-Year-Old Clue Challenges a Popular Earth Science Theory

A key geological clue to a global disruption in Earth’s ancient carbon cycle may have a more local origin. Between roughly 2.5 and 2 billion years ago, Earth underwent the greatest chemical transformation known from its surface history as oxygen accumulated in the atmosphere. That shift ultimately helped create conditions for complex organisms such as [...]

·Encinitas, United States
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Sci Tech Daily broke the news in Encinitas, United States on Tuesday, August 18, 2026.
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