The Happer transcript looks good to me, nothing stands out as misleading or incorrect. My point was simply that there are plenty of incorrect notions bandied about here. A prominent one is that CO2 doesn’t matter because its concentrations are too small. But the most rudimentary model that all scientists agree on shows that without CO2 there can be no serious amount of water vapor because the air would be too cold to hold it. The average temperature would be about -18C instead of +15C.
Then you gotta like this quote from the transcript:
“The earth’s climate really is strongly affected by the greenhouse effect, although the physics is not the same as that which makes real, glassed-in greenhouses work. Without greenhouse warming, the earth would be much too cold to sustain its current abundance of life. However, at least 90% of greenhouse warming is due to water vapor and clouds. Carbon dioxide is a bit player. There is little argument in the scientific community that a direct effect of doubling the CO2 concentration will be a small increase of the earth’s temperature — on the order of one degree. Additional increments of CO2 will cause relatively less direct warming because we already have so much CO2 in the atmosphere that it has blocked most of the infrared radiation that it can.”