I fear I have a bit of environmentalist in me

Warp! has a bit of dialogue that I've loved for decades. If I remember it correctly, it goes something like this:
Character A: He wants to destroy the universe!
Character B: But where will he live?I don't think of myself as an environmentalist, but I probably am. I hate science fiction stories where people assume the right or inevitable thing to do is to exhaust the Earth and move on. I really