The biblical response is clear. We were given the earth to exercise dominion over by God. What we do, per that dominion, will be and is being judged by God.
Clearly, we are not very good stewards of that which was given to us.
AMR
I agree that the biblical WHY is clear, but not necessarily the biblical WHAT.
Nor is it real clear how to know what actions to take, if any, to correct things, when we didn't very clearly perceive what our previous actions were going to do.
For instance, if ferocious animals are killing people, what do we do? Do we kill the animals (as here: Surely for your lifeblood I will demand [a reckoning];
from the hand of every beast I will require it, and from the hand of man. From the hand of every man's brother I will require the life of man. [Gen 9:5 NKJV]), or do we not (as here, since it would be thwarting God's intention: And it was so, at the beginning of their dwelling there, [that] they did not fear the LORD; therefore the LORD sent lions among them, which killed [some] of them. [2Ki 17:25 NKJV])
I guess I can go start a thread about it, huh?