Well the question doesn’t need a deity posited, unless anyone can demonstrate any deity exists or is even possible, the question is complete without it.
It’s a matter of subjective perception, and beyond that if you have children or people you care about who will live after you’re gone, then that seems a pretty good reason.
No there doesn’t sorry, we may impose one on ourselves subjectively, if that’s what you mean, but it doesn’t exist in any objective sense. We can of course construct sound arguments as to the folly of not looking after the planet, and the “future” here might be a lot closer than many people imagine.