The plausibility of a hydrosphere

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Once I heard a creationist say that the earth once may have had a hydrosphere layer up above our natural atmosphere, which implied that a substantial layer of ice covered the earth and created a greenhouse effect.



I am not attempting to argue this assumption, but can this phenomenon occur in a world similar to our own? If it can, then what would be the consequences?






reality-check planets







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  • Might be related: worldbuilding.stackexchange.com/questions/25571/…
    – Real Subtle
    2 hours ago










  • Oh, thank you!!
    – Austin Trigloff
    2 hours ago














up vote
1
down vote

favorite












Once I heard a creationist say that the earth once may have had a hydrosphere layer up above our natural atmosphere, which implied that a substantial layer of ice covered the earth and created a greenhouse effect.



I am not attempting to argue this assumption, but can this phenomenon occur in a world similar to our own? If it can, then what would be the consequences?






reality-check planets







share|improve this question







New contributor




Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.



















  • Might be related: worldbuilding.stackexchange.com/questions/25571/…
    – Real Subtle
    2 hours ago










  • Oh, thank you!!
    – Austin Trigloff
    2 hours ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite











Once I heard a creationist say that the earth once may have had a hydrosphere layer up above our natural atmosphere, which implied that a substantial layer of ice covered the earth and created a greenhouse effect.



I am not attempting to argue this assumption, but can this phenomenon occur in a world similar to our own? If it can, then what would be the consequences?






reality-check planets







share|improve this question







New contributor




Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











Once I heard a creationist say that the earth once may have had a hydrosphere layer up above our natural atmosphere, which implied that a substantial layer of ice covered the earth and created a greenhouse effect.



I am not attempting to argue this assumption, but can this phenomenon occur in a world similar to our own? If it can, then what would be the consequences?






reality-check planets




reality-check planets






share|improve this question







New contributor




Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






New contributor




Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 2 hours ago









Austin Trigloff

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New contributor




Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Austin Trigloff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











  • Might be related: worldbuilding.stackexchange.com/questions/25571/…
    – Real Subtle
    2 hours ago










  • Oh, thank you!!
    – Austin Trigloff
    2 hours ago
















  • Might be related: worldbuilding.stackexchange.com/questions/25571/…
    – Real Subtle
    2 hours ago










  • Oh, thank you!!
    – Austin Trigloff
    2 hours ago















Might be related: worldbuilding.stackexchange.com/questions/25571/…
– Real Subtle
2 hours ago




Might be related: worldbuilding.stackexchange.com/questions/25571/…
– Real Subtle
2 hours ago












Oh, thank you!!
– Austin Trigloff
2 hours ago




Oh, thank you!!
– Austin Trigloff
2 hours ago










1 Answer
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Liquid or solid water is denser than air at STP, therefore there is no way that still air can sustain water by buoyancy.



A flow of air can lift water, but that would not happen all around the globe: somewhere the upgoing air has to come down.



If instead there is a layer of ice covering the surface and the liquid water is above this layer of ice, I have a hard time understanding how a bulk layer of ice can be qualified as "atmosphere".






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  • I agree, it's not the name I would use. Maybe outer ice shell
    – Austin Trigloff
    2 hours ago






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    The key word in the question is "creationist".
    – nzaman
    52 mins ago










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1 Answer
1






active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
6
down vote













Liquid or solid water is denser than air at STP, therefore there is no way that still air can sustain water by buoyancy.



A flow of air can lift water, but that would not happen all around the globe: somewhere the upgoing air has to come down.



If instead there is a layer of ice covering the surface and the liquid water is above this layer of ice, I have a hard time understanding how a bulk layer of ice can be qualified as "atmosphere".






share|improve this answer




















  • I agree, it's not the name I would use. Maybe outer ice shell
    – Austin Trigloff
    2 hours ago






  • 1




    The key word in the question is "creationist".
    – nzaman
    52 mins ago














up vote
6
down vote













Liquid or solid water is denser than air at STP, therefore there is no way that still air can sustain water by buoyancy.



A flow of air can lift water, but that would not happen all around the globe: somewhere the upgoing air has to come down.



If instead there is a layer of ice covering the surface and the liquid water is above this layer of ice, I have a hard time understanding how a bulk layer of ice can be qualified as "atmosphere".






share|improve this answer




















  • I agree, it's not the name I would use. Maybe outer ice shell
    – Austin Trigloff
    2 hours ago






  • 1




    The key word in the question is "creationist".
    – nzaman
    52 mins ago












up vote
6
down vote










up vote
6
down vote









Liquid or solid water is denser than air at STP, therefore there is no way that still air can sustain water by buoyancy.



A flow of air can lift water, but that would not happen all around the globe: somewhere the upgoing air has to come down.



If instead there is a layer of ice covering the surface and the liquid water is above this layer of ice, I have a hard time understanding how a bulk layer of ice can be qualified as "atmosphere".






share|improve this answer












Liquid or solid water is denser than air at STP, therefore there is no way that still air can sustain water by buoyancy.



A flow of air can lift water, but that would not happen all around the globe: somewhere the upgoing air has to come down.



If instead there is a layer of ice covering the surface and the liquid water is above this layer of ice, I have a hard time understanding how a bulk layer of ice can be qualified as "atmosphere".







share|improve this answer












share|improve this answer



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answered 2 hours ago









L.Dutch♦

66.2k20159311




66.2k20159311











  • I agree, it's not the name I would use. Maybe outer ice shell
    – Austin Trigloff
    2 hours ago






  • 1




    The key word in the question is "creationist".
    – nzaman
    52 mins ago
















  • I agree, it's not the name I would use. Maybe outer ice shell
    – Austin Trigloff
    2 hours ago






  • 1




    The key word in the question is "creationist".
    – nzaman
    52 mins ago















I agree, it's not the name I would use. Maybe outer ice shell
– Austin Trigloff
2 hours ago




I agree, it's not the name I would use. Maybe outer ice shell
– Austin Trigloff
2 hours ago




1




1




The key word in the question is "creationist".
– nzaman
52 mins ago




The key word in the question is "creationist".
– nzaman
52 mins ago










Austin Trigloff is a new contributor. Be nice, and check out our Code of Conduct.









 

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