Do planes taxi with their engines?

Do planes taxi with their engines? Seriously, that's a question? Of course they do! I mean, how else would they move? I remember watching a plane taxi once, all those massive engines rumbling, and thinking, "Wow, that's a lot of fuel just to creep along the tarmac." It felt wasteful, you know? Like watching someone use a sledgehammer to crack a nut.

Apparently, though – and this is something I only learned recently – many airlines are pushing their pilots to use just one engine when taxiing. Saves fuel, reduces wear and tear on the engines, the whole shebang. I read somewhere – maybe it was a travel blog, I can't quite remember – that it can make a decent difference over the course of a year, like, tons of fuel saved across all their flights. Makes perfect sense, doesn't it? It's definitely a more environmentally friendly approach. Though, I bet it takes some real skill to steer a jumbo jet with only one engine sputtering along. Imagine trying to navigate all those turns and bumps with just half the power! Gives me the willies just thinking about it. But hey, progress, right? Or at least, slightly less wasteful progress.