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>"Water vapor isn't being varied" This is another contradiction to what I've been told: "Satellites have observed an increase in atmospheric water vapour by ab
by nonbel 10y ago
>"Water vapor isn't being varied"
This is another contradiction to what I've been told:
"Satellites have observed an increase in atmospheric water vapour by about 0.41 kg/m² per decade since 1988."
https://www.skepticalscience.com/water-vapor-greenhouse-gas-intermediate.htm https://www.skepticalscience.com/water-vapor-greenhouse-gas-...
- makomk 10y agoYeah, warming increases atmospheric water vapour slightly so a simplified model that assumes it remains constant is going to slightly underestimate the total warming caused by a given amount of non-water-vapour emissions. Models don't have to take into account every detail to be useful, though.
- throwaway729 10y agoThat's exactly what I mean by "first order effect". We aren't actively and directly melting large quantities of ice. It's a second-order effect of increased atmospheric C02. One option is to allow it to vary but not as a first-order effect. Another option is to simply not let it vary to keep the model simple.