I believe in karma, and I believe nature is in control of that, as it is in control of all things. There's a force larger than us that has some kind of apparent intent and goal in all of this. And I suspect that if we continue to act against that force and its intent and goal, we're doomed. I believe we have two choices here. Evolve and continue ... or not and we all go the way of the Neanderthals (well not all, obviously, some will choose to evolve, along with their descendants .. possibly creating the next phase in human evolution .. homo superiorus or something like that, ha).