Yes, its almost entirely a feedback effect except for the 'negligible' forcing effect in the stratosphere and the cooling effect of clouds.Ok, good now you finally agree water Vapour has both forcing and feedback effects
Which is why its effect, when considered in totality, is as a feedback effect.
As stated in the IPCC report you keep ignoring.
a molecule either has forcing effects or it does not.[/B
A molecule of water can be:
1) reflective and cooling - as ice in the arctic and arctic oceans
2) warming - as water in oceans and lakes absorbs sunlight
3) feedback - as water vapour in the troposphere
4) forcing - a 'negligible' effect in the stratosphere
5) cooling - as clouds
A single molecule of water can go through all those states, so your claim is stupid.
From p667
Currently, water vapour has the largest greenhouse effect in the Earth’s atmosphere. However, other greenhouse
gases, primarily CO2, are necessary to sustain the presence of water vapour in the atmosphere. Indeed, if these other
gases were removed from the atmosphere, its temperature would drop sufficiently to induce a decrease of water
vapour, leading to a runaway drop of the greenhouse effect that would plunge the Earth into a frozen state. So
greenhouse gases other than water vapour provide the temperature structure that sustains current levels of atmospheric water vapour. Therefore, although CO2 is the main anthropogenic control knob on climate, water vapour
is a strong and fast feedback that amplifies any initial forcing by a typical factor between two and three. Water
vapour is not a significant initial forcing, but is nevertheless a fundamental agent of climate change
Your continual, lying, claims that water vapour drives climate change and not CO2 are bullshit.
Stop ignoring the science and lying about the IPCC report.
Just admit you are wrong.