While the great oxidation event happened over a prolonged period of time, evidence points to a significant decrease in the size of the earth's biosphere over th

While the great oxidation event happened over a prolonged period of time, evidence points to a significant decrease in the size of the earth's biosphere over that time [1]. It's hard to say exactly what happened that early in the earth's history, but if we look at mass extinctions, they are by definition a rapid decrease in biodiversity where evolution fails to keep pace with extinction. If you graph the number of species over time, you see these periodic cliffs when mass extinctions occur [2]. The problem with climate change is not that humans will destroy life on this planet - it will recover from us, eventually - but we can make it much harder for us to live here and cause a lot of suffering and harm, and maybe even cause our own extinction. 1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6717284/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6717284/ 2.https://upload.wikimedia.org/wikipedia/commons/4/4d/Phanerozoic_Biodiversity.svg https://upload.wikimedia.org/wikipedia/commons/4/4d/Phaneroz...