Since evolution and nature are the driving forces - than everything we do must further its cause. No wait, is there a cause? Doesnt really matter we can manipulate nature and become its god (for lack of a better word).
It seems to me that we have dissected this tree to the point that we have lost sight of the forrest.
And I have no problem admitting that. There is still a lot we don't know but to simply postulate a supernatural entity to explain what we don't know isn't very helpful.
That's all you get from science: explanations.
Do you know the difference between descriptive science and prescriptive ethics?