"And God saw that it was good" (Gen. 1:25). These words from the first chapter of the Book of Genesis reveal the meaning of what God has done. To men and women, the crown of the entire process of creation, the Creator entrusts the care of the earth (cf. Gen. 2:15). This brings concrete obligations in the area of ecology for every person. Fulfillment of these obligations supposes an openness to a spiritual and ethical perspective capable of overcoming selfish attitudes and "life-styles which lead to the depletion of natural resources."
Pope John Paul says, "In this area, too, so relevant today, the action of believers is more important than ever. Alongside legislative and governmental bodies, all people of good will must work to ensure the effective protection of the environment, understood as a gift from God" (Ecclesia in America, Pope John Paul II, 1999)