Still don't understand the basics, do you FAST?Once again for the dunces here,...
Per NOAA
"As the temperature of the atmosphere rises, more water is evaporated from ground storage (rivers, oceans, reservoirs, soil). Because the air is warmer, the absolute humidity can be higher (in essence, the air is able to 'hold' more water when it's warmer), leading to more water vapor in the atmosphere. As a greenhouse gas, the higher concentration of water vapor is then able to absorb more thermal IR energy radiated from the Earth, thus further warming the atmosphere. The warmer atmosphere can then hold more water vapor and so on and so on. This is referred to as a 'positive feedback loop'"
- CO2 is NOT included,... there are only two components/variables in that positive feedback loop,... temperature and water vapour.
- There are numerous natural phenomena's that can, and do increase temperatures,.... El Niño as an example,... and that little ball of fire in the sky, called the sun, has strangely enough been known on occasion to increase the temperature of the earth.
But of coarse that isn't the case anymore,... since the last "revision" to generations of data,... the sun doesn't change the planets temperature anymore.
- There is no IF,...Water vapour is the predominate green house gas,... always has been.
Even before the self appointed unemployable experts started "revising" data accumulated for decades.
Yes, water vapour is a greenhouse gas but no, its not a driving factor in the changing climate. As your quote states, it amplifies other changes, or forcings, to the climate. Even were you to create a massive stink in your neighbourhood and release massive amounts of water vapour into the atmosphere it would just end up raining back down on you. And clearly you understand that NASA, NOAA and the IPCC know exactly what part water vapour plays in climate change since you are quoting them in your posts. So lets just confirm,
a) water vapour changes don't drive climate change, they react to climate change
b) climatologists are very aware of the role of water vapour in their research, projections and models
Now, clearly you also don't understand El Nino's effect on the global climate if you think that El Ninos lead to long term increases in the global temperature. I suggest you read about ENSO (El Nino Southern Oscillation) and the total effect of El Nino's and La Nina's.
https://www.carbonbrief.org/analysis-how-much-did-el-nino-boost-global-temperature-in-2015
Solar changes in energy have also been discussed and shown to not possibly have caused the increase in global temperature.
I'll repeat the link to the Bloomberg chart that uses NASA data to show all the possible influences on global temp (including solar).
https://www.bloomberg.com/graphics/2015-whats-warming-the-world/
Water vapour isn't listed on that chart because it doesn't drive change, by the way.