Do you find some kind of solace in your (unfounded) assumption that the earth will outlive humanity?
Two reasons for this view:
* Invoke a sense of urgency in the fact that it is our own situation that is at stake, not some abstract external good that only hippies ought to care for.
* Because the value of human life is a moral pillar we all share, while I can't find any reason to value existing species over new species, or newly emerging moss species over species that might go extinct.
I'm struggling to come up with an even remotely likely scenario where that wouldn't be the case....getting sucked into a black hole would be one I suppose.