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That's a bit like saying getting shot is harmless since it's the blood loss that kills you.
No, because the blood loss is causally related to the gunshot, where CO2 and H2O are causally unrelated.
It is more like saying the stubbed toe (or other unrelated injury that can not cause death) you got that morning had nothing to do with your gunshot related death. Don't forget the order-of-magnitude relation.
No, because the blood loss is causally related to the gunshot, where CO2 and H2O are causally unrelated.
If you accept that CO2 absorbs infrared radiation, even if it's a fraction of water vapor, you have to accept that adding CO2 to a closed system will increase the equilibrium temperature. Higher temperatures mean more water vapor in the atmosphere.
You're starting to reach here.
closed system
Atmospheric water, or rather the atmosphere as a whole, isn't closed.
The most well known example is gas being lost to space, but the most relevant example is so-called carbon sequestration (e.g. it becomes a part of the physical structure of trees when they metabolize CO2, and is released when they die). Similar processes exist for water that e.g. drains to groundwater, enters aquifers, and is bound up in the living creatures and foliage of the earth.
And, worse, if we pretend the system actually is closed:
adding CO2 to a closed system will increase the equilibrium temperature.
This runs afoul of basic thermodynamics.
This runs afoul of basic thermodynamics.
So when you sit in a car parked in the sun with all the windows up it doesn't get hotter because that would run afoul of basic thermodynamics. Got it.
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