God renews creation. As long as something exists, it is loved and cared for by God. This sovereignty is not to be an arbitrary and destructive domination. We may have dominion, but we also have responsibility. We are not the lords of creation, but the stewards of creation.
Humans have the same role, and for a very important purpose.
Our stewardship of the earth is a kind of participation in God's act of creating and sustaining the world. To determine how well we are doing our jobs as stewards, we have to look at our world. To answer these questions, we can look to the social teachings of the Church. We must never lose sight of this universal destination of earthly goods. In his use of things man should regard the eternal goods he legitimately owns not merely as exclusive to himself but common to others also, in the sense that they can benefit others as well as himself.