Hmmm, let’s assume green sulfur bacteria exist a LOT down in the caves and are the main food source for the primary consumers.
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So that should keep the oxygen amounts balanced, correct?
Yes. Thank you, chemosynthesis!
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oh and chemosynthesis describes an incredibly vast range of processes, but if you mean the one used in thrive, that uses h2s both as an electron donor and a hydrogen donor to fix CO2 into organic molecules to store energy(which can lock up Co2)
and, if the eukaryotes are using alcoholic fermentation, and nothing uses the alcohol, i see a lot of fire on the ocean as soon as soon as the ice melts enough for the oceans to touch the air
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We will survive these fires, right?
yeah, they’ll burn on the surface of the water, but when they end, co2 concentrations will be much higher in the oceans and atmosphere than they started, which could start a greenhouse period, but atmospheric and oceanic O2 will be mostly depleted, likely making ethanol produced afterwards accumulate in the atmosphere or on the ice
and if it accumulates in the atmosphere,
well the start of the great oxygenation event is gonna be very bright
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That might just be a killing blow to the glacial sheets of this planet…
only for like, 1 or 2 turns though, since afterwards, o2 will be readily available to react with ethanol before enough to make a fire can accumulate
the more likely option though is the ethanol stays in the water because of the temperature, and due to tides, there would be tidepools where the water freezes, leaving the ethanol liquid, and Very flammable, also with a lot of salt sediment at the bottom of the ethanol
wait how much oxygen do you need to make wine catch fire?
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No idea, but 3% atmospheric oxygen seems low compared to the earthly 21%…
3.3-12% alcohol in the air above the liquid is needed along with 20% oxygen for it to be flammable, so it’d need a lot more in 3% oxygen, likely meaning that only the alcohol tidepools will be catching fire before a great oxygenation event
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Also wouldn’t there fires rid the planet of some of it’s oxygen by turning it into co2?
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Early earth ha low oxygen, too…
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I know, but we don’t know if fires could happen then on the surface.
Hmm. Well, volcanoes just have to do the trick…
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What is now called Sulphureum grabattis has mutated in a way that the medusa stage keeps on growing. They slowly grow exact copies of themselves out of their sides, but those copies don’t detach, forming mats that can become very large.
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Geomedusa Flos evolved into Geomedusa Sol, which has made it’s petals even longer for more debris catching. The poison this species used to produce to cover it’s flagella is now instead used by newly-evolved nematocyst cells that litter the petals. The “Central Medusapart” is now almost entirely specialized for digesting what the petals catch. Due to a mutation, the color of this species is now yellow, which when combined with it’s shape from a bird’s view make it look like a cartoon sun.
With this, only AA needs to submit their votes.
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Is this the last snowball period in this planet’s history?
There will be a shorter snowball period lasting from Turn 20-23.
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Is that dependent on our influence on the atmosphere?