• mangaskahn@lemmy.world
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    15 hours ago

    The volume doesn’t change. It’s still the same amount of CO2 in the same volume. There’s just more of the other gasses in that same volume.

    • deranger@sh.itjust.works
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      15 hours ago

      I don’t know enough about planets and atmospheres to say for sure, but I reckon adding gas would increase the volume of our atmosphere to some extent.