Journal
NATURE
Volume 506, Issue 7488, Pages 307-315Publisher
NATURE RESEARCH
DOI: 10.1038/nature13068
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Funding
- NSF-EAR
- NASA Exobiology Program
- NASA Astrobiology Institute
- Agouron Institute
- O. K. Earl Postdoctoral Fellowship in Geological and Planetary Sciences at the California Institute of Technology
- NSF-EAR-PDF
- Directorate For Geosciences [1338299] Funding Source: National Science Foundation
- Division Of Earth Sciences [1338299] Funding Source: National Science Foundation
- Division Of Earth Sciences
- Directorate For Geosciences [1144317, 1338290, 1411609] Funding Source: National Science Foundation
- Division Of Earth Sciences
- Directorate For Geosciences [1338810] Funding Source: National Science Foundation
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The rapid increase of carbon dioxide concentration in Earth's modern atmosphere is a matter of major concern. But for the atmosphere of roughly two-and-half billion years ago, interest centres on a different gas: free oxygen (O-2) spawned by early biological production. The initial increase of O-2 in the atmosphere, its delayed build-up in the ocean, its increase to near-modern levels in the sea and air two billion years later, and its cause-and-effect relationship with life are among the most compelling stories in Earth's history.
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