That page is dated:

"This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science.

"Published Jun 16, 2011"

NASA is one of the leading AGW propaganda institutions.

However, the numbers you are citing above are vastly different than those published by Lindzen and Happer. Lindzen and Happer say that water vapor provides ~90% of the GH effect, and CO2 and the several other GH gases combined provide the other ~10%.

I will make the following observation: On the NASA page you linked is published:

"...increased temperature results in higher evaporation rates and a wetter atmosphere, which leads to a vicious cycle of further warming."

While this seems reasonable - and alarming, because we know CO2 concentration in the atmosphere is rising - a cursory glance at Earth's past reveals it is a false statement.

IMG source - Lindzen and Happer (2025) Pg. 13

During most of the existence of Earth CO2 has been much higher than it is now, as you can see from the provided chart. After the Cambrian ~500Mya, life produced an explosion of diversity of species, and CO2 was ~10x what it is today. Obviously, at no time during the existence of Earth did the runaway 'vicious cycle' NASA said would happen occur. Temperature rose and fell, CO2 rose and fell, and it even appears from the chart that when one rose the other fell, and vice versa, most of the time.

However, let's bring this discussion much closer to today, and note mention of the Vikings colonization of Greenland after ~850 AD in the above image. Global temperatures were high enough then for pasture to raise sheep in Greenland, however by ~1250 AD, the colonies collapsed because temperatures cooled and pasture could no longer sustain sheep in Greenland. There are myriad sources and historical documents confirming this occurred. It is not a theoretical or speculative claim by the authors of the linked paper. I do not know of any source at all that denies that historical event, much less any credible source denying it.

That is not what NASA said would happen. They said when the atmosphere warmed, there would be more evaporation, which would warm the atmosphere more, and this cycle would continue to increase temperatures. That is not what happened, and the Greenland colonies failed.

So, we observe that the claim that higher temperatures will create a vicious cycle of increasing warming is false. We observe that NASA makes false claims, and presumably is actually well informed of Earth's climatic history, so they knowingly make false claims: NASA lied. That's what scammers do.

The first time someone lies to you should be the last time you believe them. Since NASA's claims are disproved by the climate history of the Earth, you will have to cite some other source for CO2 ratios and saturation points differing from Lindzen and Happer because NASA is without evidentiary value, being proved liars.