Here's a mercifully short article outlining what might happen during a so-called Hydroxyl Collapse in the atmosphere.
"Evil noxious gases like sulphuric and nitrogen oxides would pile up. No hydroxyl, and smoke and soot would accumulate in the atmosphere."
Gotta love the banner-ad for the Oreck Air Purifier at the bottom.
The interaction between global warming and global dimming is complex enough for me. Throwing this in the mix yields complexity that's far beyond my ability. Then consider half of the russian tundra melting along with the arctic ocean and most of our glaciers. Don't forget that some of our major ocean currents could shut down around the time we'll be switching to coal, ramping up deforestation, and probably throwing a few nukes around.
I feel a bumpersticker coming on...
"This is not your Grandfathers Dust Bowl."
I don't think that Hydroxyl Collapse will contribute very much to global dimming because global dimming is caused by high-altitude particulate.
Correct me if I'm wrong, but low-altitude pollution (including particulate) usually yields haze, not persistent (and highly reflective) cloud cover. What correlation exists between smog/haze and temperature?
We'll be at solar maximum again around 2012. Solar UV output varies quite a bit with the solar cycle. Will increased UV leave us with more hydroxyl or less hydroxyl?