it was unthinkable in the original Aristotelean framework. They had no notion of being capable of destroying the environment in the way that we can now.

I don't think that's true at all. They could have easily over-fished, exhausted the land through improper farming, or cut down all the trees in a particular area. And they had a very good idea that they could do this and screw over future generations.

I don’t think that model takes ignorance into account. You would be unhappy if you knew you were doing a disservice to future generations, but you might accidentally do something stupid that screws things up for generations to come.

That sounds intuitively plausible; Aristotle's systems in general tended to be bad about modeling human ignorance.

A negative. Just ask G.K. Chesterton!

My grandparents did everything within their power to "destroy" the environment, and I'm perfectly fine.

I see that we're not that familiar with various versions of the anthropic principle. Okay then.