Scientists may have misread a 2-billion-year-old clue about Earth
The discovery raises new questions about what was really happening as oxygen transformed the young planet.

The discovery raises new questions about what was really happening as oxygen transformed the young planet.

The discovery raises new questions about what was really happening as oxygen transformed the young planet.
Scientists have found that a famous 2-billion-year-old chemical signature, once thought to record a massive global change in Earth's carbon cycle, may instead have been produced by local magma,...
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The discovery raises new questions about what was really happening as oxygen transformed the young planet. Scientists have found that a famous 2-billion-year-old chemical signature, once thought to record a massive global change in Earth's carbon cycle, may instead have been produced by local magma, hydrocarbons, and methane-eating microbes.
Scientists have found that a famous 2-billion-year-old chemical signature, once thought to record a massive global change in Earth's carbon cycle, may instead have been produced by local magma, hydrocarbons, and methane-eating microbes.
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