"Learn something new every day."

"So this isn't coal?"

"I'd be pretty surprised if it was, there are probably better energy sources at this tech level."

"Oh, huh. Like what? I mean, you wouldn't know about this tech level, but if escalating energy sources is a thing you know."

"Uh, hydroelectric, nuclear, solar, wind? But this is kind of sci-fi ish so it wouldn't floor me if they do stuff with antimatter or whatever."

"...Solar. Neat."

"I guess that would sound weird considering, wouldn't it, but I think of it as sort of like imitating plants, which presumably still use sunlight on your Earth."

"Oh, yeah, definitely. I was thinking that it sounded cool, not weird."

"It is cool. In our time it doesn't scale up that well but it's getting more popular. People put solar panels on their roofs."

"I wonder if my light would be close enough to work. It does for plants but, uh, plants are alive."

"So you might be... healing them from being undernourished, rather than feeding them?"

"Right. It's hard to tell."

"Maybe there are solar panels around here somewhere and you can check."

"That would be convenient. I wouldn't bet on it with all this garbage in the air, though, ugh, it makes me want to cover everything in plants."

"I wouldn't expect this to be a power plant, I'm guessing it's a factory or several."

"I suppose. I don't really know what goes on in factories, besides, uh, things being created."

"I don't know either but I think paper mills are famously bad-smelling? We could ask Seymour."

"We could. Hey, Seymour!" she calls. 

"Yeah?"

"Do you know what kinds of factories are making this bad air?" 

"Uh, I dunno. Probably not the distillery?"

"The distillery?" 

"Yeah, it's pretty famous, even offworld. The Earth-That-Was Distillery, makers of Old Earth Style Kentucky Bourbon." 

"What other kinds of factories are there?"

"...Lots?"

"Paper?"

"Probably."

"I guess I don't know what the factories around places I go at home make unless I happen to see a sign."

"Yeah. You'd think they'd want to make alcohol somewhere less piquant, though."

"Maybe they filter the air inside the distillery? Or, I don't actually know if the process actually involves it being exposed to air ever."

"I guess I don't either, I just sorta associate booze with food and I know really high-level cooks don't want a ton of smoke around foods that don't specifically want to taste smoky and so on."

"Maybe the factories are labeled." She peers out at the buildings.

The factories are labeled by brand but not by product. None of the immediately visible ones proclaim themselves to be Earth-That-Was Distillery. 

Are the brands decipherable portmanteaus or anything?