j4k3@lemmy.world to

Cool Guides@lemmy.caEnglish · 5 months ago

A time traveler's survival guide. The vertical green bars are the only times in Earth's history with enough oxygen to breathe (hypoxia) and low enough to avoid oxygen toxicity (hyperoxia).

files.catbox.moe

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A time traveler's survival guide. The vertical green bars are the only times in Earth's history with enough oxygen to breathe (hypoxia) and low enough to avoid oxygen toxicity (hyperoxia).

files.catbox.moe

j4k3@lemmy.world to

Cool Guides@lemmy.caEnglish · 5 months ago

https://en.wikipedia.org/wiki/Hyperoxia

This was a screenshot I took months ago while watching a Geology Hub upload on YT. It was a lightbulb moment for my understanding of mass extinction events, (the largest was 250ma). I’ve referenced this multiple times, so thought I might share. Perhaps you find it as interesting as I do.

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5 months ago
Or similarly, “not habitable, but it could have been”. Subtle difference between the two.

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