I don't think they do. ARMs are vastly underpowered compared to (desktop) x86 processors. Emulation would be way too slow, even by MSFT's standards.

Since pacman caches any package you download, downgrading is in my opinion pretty easy (execpt the package depends on some library of a certain version). All you have to do is to install a previous version of a faulty package from the cache directory and let pacman ignore the package for future updates.

Yeah right, even TFS states that among the emissions is not just soot but also sulfur, nitrous oxides and stuff like that. Then again, I bet you wouldn't mind some sulfuric acid in your food either, would you?

That may be true but the emissions may be dissolved in the ocean water and find their way via the fish into your body somehow.

There isn't any hydrogen lobby, ist it?

You should have told me that earlier :(. I guess I will be fine if I use an ordinary camera next time, thanks for the advice though.