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The Great Oxidation Event preceded a Paleoproterozoic "snowball Earth".
Warke MR, Di Rocco T, Zerkle AL, Lepland A, Prave AR, Martin AP, Ueno Y, Condon DJ, Claire MW. Warke MR, et al. Among authors: condon dj. Proc Natl Acad Sci U S A. 2020 Jun 16;117(24):13314-13320. doi: 10.1073/pnas.2003090117. Epub 2020 Jun 1. Proc Natl Acad Sci U S A. 2020. PMID: 32482849 Free PMC article.