• roguetrick@kbin.social
    link
    fedilink
    arrow-up
    35
    ·
    1 year ago

    Most things were using sulfur for photosynthesis and not CO2 and O2. Then tectonic events happened that caused O2 production to rise. Suddenly we had an oxidizing atmosphere that killed 80 percent of the diversity of life on earth while also changing the climate.