Renewing the Earth: An Invitation to reflection and Action on Environment in Light of Catholic Social Teaching, 1991, 6
"We show our respect for the Creator by our stewardship of God’s creation. Care for the earth is a duty of our faith and a sign of our concern for all people. We should strive to live simply to meet the needs of the present without compromising the ability of future generations to meet their own needs. We have a moral obligation to protect the planet on which we live – to respect God’s creation and ensure a safe and hospitable environment for human beings, especially children at their most vulnerable stages of development. As stewards called by God to share the responsibility for the future of the earth, we should work for a world in which people respect and protect all of creation and seek to live simply in harmony with it for the sake of future generations."
Forming Consciences for Faithful Citizenship, 2007, 54.
See also Catechism of the Catholic Church: Heaven and Earth