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).

j4k3@lemmy.world · edit-2 10 days 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).

Tlaloc_Temporal@lemmy.ca · 9 days ago

I’d think that the aerosolized lead from leaded gasoline did far worse than any plastic or change in CO₂. There’s still lots of volatile pollutants, like CO and hexavalent-anything out there.