Verschuur's paper said the so-called CMB correlates to galactic surroundings near the solar system. I've heard Thornhill and maybe others mention that this CMB correlates to Earth's oceans, as you say, but Verschuur didn't mention that, unless I overlooked it. Here's something the paper said (see the Sources section at Interacting Galactic Neutral Hydrogen Filaments at statements 6 and 7):
"The previously hypothesized model for producing the continuum radiation (Verschuur, 2010) involving free-free emission from electrons is re-examined in the light of the new data.
"By choosing reasonable values for the parameters required to evaluate the model, the distance for associated H I - ILC features is of order 30 to 100 pc." (ILC is part of WMAP.)
If the critical point for hydrogen is 101.2 K and 101.1 bar, that's 15.8K and 12.6 bar. Isn't it? If so, the temperature sounds reasonable, but the pressure sounds rather high. Would you find pressure that high in space? Isn't a bar about one atmosphere, i.e. about 14.7 lb/sq in? 12.6 bar would then be about 185 lb/sq in.
The second point I got out of Verschuur's paper, as I said above, is: (2) galactic filaments contain excess electrons not produced from ionization of neutral hydrogen H I etc. The reason that impressed me is because the paper seems to suggest that neutrals and electrons were detected, but no significant amount of positive ions were detected in this locale. So I'm trying to understand for one thing if I understood that correctly or not. The reason it interests me is that it would seem to support Mathis' theory. Mathis didn't state it anywhere that I know of, but if he's right that electrons are built up from photons, and if protons are similarly built up from electrons, it seems that there should be far more electrons than protons. I asked him about that recently, but he didn't have time to answer. So, if the positive ions are missing in nearby parts of the galaxy, it might be explained by Mathis' theory.
Lloyd said: (2) galactic filaments contain excess electrons not produced from ionization of neutral hydrogen H I etc;
You replied: That appears to be what he's saying, but I don't start out convinced of this.
Lloyd said:(3) neutral filaments and electron filaments are closely associated;
You replied: I have an easier time understanding how +ions and electrons would be closely associated. This might be just my ignorance, and I don't want to discount the data because they don't make sense to me. But considering the extremely vigorous nature of the electric force, charge imbalances out to raise eyebrows.
Mathis' findings were that charge is only about 3 orders of magnitude greater than gravity at the atomic level, so I suppose charge imbalances would be much easier to maintain, if that's correct.
I posted 4 other papers about filaments in the Sources section, but I don't think any of them make similar findings. So this paper may just be a fluke, or something I don't understand well enough. But I think the other papers have some interesting findings to discuss too.