So... don't overuse resources. And when presented with the question of "how does this scale?" don't ignore how fabulously efficiently we damaged the environment every other time we've scaled production up.

Not sure how you got "keep burning oil" from that...

We're not even near the scaling part. It's silly to argue about how something will have issues if the entire world did it. There are tons of things we do today that wouldn't scale environmentallly if the entire world wanted to do the same thing (e.g. flying).