Scientists may have misread a 2-billion-year-old clue about Earth
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. The discovery raises new questions about what was really happening as oxygen transformed the young planet.
Where: Germany, Norway, Russia
Exact coordinates
germany: 51.170, 10.450
norway: 60.470, 8.470
russia: 61.520, 105.320
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