[Despite the nerves in the air, Elliot will still chuckle slightly at that. Or maybe, because of the nerves]

Ha, maybe he knows how bad they are for the environment.

[Or more likely, he's a skittish idiot. But that's besides the point. Elliot will take a breath]

... Just so you know, this is still your home, and we're still your family. [He'll just say that point blank, since he knows that must be preying in the back of Ash's mind]

This is... about a decision I'm making for myself, that I think you have the right to know about.