anthropocene mediterranean, rougly
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Oh, so larger than I though… I suppose it changes in size over the seasons, right?
not significantly, with the water full of salt and other freezing point-lowering compounds, and the atmosphere too thin to carry significant water, most of it remains liquid. Small but abundant ice crystals might form and rise to the surface, but there’s no significant change in conditions deeper down
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Does the night/day temperature differences make the surface of the sea freeze at night?
again, no, there’s so little energy reaching Earth that changes have negligible consequences aside from processes that need light themselves, like photosynthesys or sight. Dry land has somewhat harsher temperature extremes, but since I STILL can’t find information for any sort of climate model, I won’t be adding temperature mechanics on short timescales
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How high can we make the greenhouse effect go on this Earth?
hmm… I might put a cap at 10 kilopascals, since the world is geologically dead, life moving compounds around won’t do much, but even then that’s a cap for absolute madness, since we’re at 4,4. or so right now, and historically life doesn’t change much the atmospheric pressure (unless we’re missing something about Venus, but I’ll let the real scientists figure that out)
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So 1/10th the current Earth Pressure? Would that be enough to make fires and stuff once (if) one of us becomes sapient?
as part of the “canon” setting this FG is based off of, I intended to have a sentient species, and to help them progress, I imagined plants (like the species I play as) storing oxygen as a toxin-based defense mechanism, as a result, If you guys were to develop a sentient species, you could burn my “wood” thanks to stored oxygen
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I see. Also I presume underwater civs aren’t allowed, correct?
Hmmm… I guess you could do them, but since the only major species in this world are player-led, rather than a proper biosphere (I’ll add npc species to take care of the soil once that becomes a thing, for example, since I doubt anyone wants to spend the entire FG playing a microbe munching on rocks), it’ll be harder due to limited “living” resources, you might need to work together with other AIs for things like that
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Also I recall you said a long time ago here that Earth is supposed to be like an attraction due to it being the cradle of humanity. What will humans think of a new biosphere “claiming” their cradle grounds?
“huh, cool”
I mentioned the establishment of permanent colonies in historically significant places (former rift valley, points of origin for civilizations like Mesopotamia, the Bering strait), but they’ll be pressurized an sealed, so we won’t see much of other humans
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Was there a civ in there in the later days of human Earth?
no, but it served as the point where humans crossed onto the americas, one of our greatest expansions. I might add one in former indonesia, since it also became a landbridge for humanity to cross into Oceania
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Hm. Also should we expect the ring system to drop larger chunks onto the surface once in a while?
no, it’s mostly stabilized by now, I can’t find what exactly causes Saturn’s rings to decay irl, but for this FG we’ll assume Earth’s new rings are distant enough and under very little influence from other bodies, so they will remain there until gravitational decay causes them to fall on a timescale so long it doesn’t make sense
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Also how much have they decayed by now?
for that I’d have to know how much mass rings formed from the moon would have, their properties, and time of formation. We’ll just say their remain visible, but don’t have easily distinguishable sections like larger ring systems
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Also will they cast significant shadows on areas?