Just spend time in the out doors and God will use it to speak to you.

I believe we have plenty of renewable resources on earth for all time. That's because God would not create and not provide for us completely, imo. He gave us dominion over the resources, and I do believe we need to use them as best we can. But run out? God wouldn't have made an "oops" they needed more... I think He told us to be dominant so that we wouldn't allow the earth and her resources to become a god to us, one that we ruled our life around.