> BUT I still don't see where Heaven and Hell as anything to do with stewardship
Huh, seems self-evident to me. If you have to keep a thing, you're gonna be motivated to treat it nice. If you're gonna throw that thing away after you're done with it, you're less motivated to treat it nice.
Since you are a Theological student, I'm sure you're familiar with 2 Corinthians, where Paul goes on at length about the evanescence of our terrestrial "tents": "For our light and momentary troubles are achieving for us an eternal glory that far outweighs them all. 18So we fix our eyes not on what is seen, but on what is unseen, since what is seen is temporary, but what is unseen is eternal. For we know that if the earthly tent we live in is destroyed, we have a building from God, an eternal house in heaven, not built by human hands."
Now this certainly sounds like it would be quite conducive to a "sinking ship" mentality. At the very least on the face of it! You might disagree for more _Theological_ reasons, but if you can't recognize the most obvious, exoteric implications of the text, then I can't help but feel that you're not considering what I said in good faith.
In another sense, it's a question of enforcement. All religions explicitly name the consequences for sin, so if abusing the environment is a sin in Christianity, what is the consequence? I mean, I assume even Christians have some vague sense that you shouldn't torture animals, but where exactly in the Scriptures is even that prohibited?
This is all rooted in Christianity's anthropocentric "ranking of souls." Since only humans are made in the image of God, we have a special status, which is why it's fine to eat the flesh of animals, which God specifically exhorts Peter to do, no?