Excerpts from the Encyclical Laudato Si’ of Pope Francis.
Summary: The Book of Genesis teaches that human life is not ‘adrift in hopeless chaos,’ but that God’s plan includes humanity (§ 65). Human life is grounded in three fundamental relationships: with God, with our neighbour and with the earth itself; originally in harmony, these relationships were disrupted by sin (§ 66). Our ‘dominion’ of the earth is not ‘absolute ownership’; we are subject to God’s will for ‘mutual responsibility between human beings and nature’ (§ 67). Our awareness of ecological crisis must translate into new habits, especially for those ‘in a milieu of extreme consumerism and affluence’ (§ 209). Christianity has a ‘precious contribution’ to make towards an ‘ecological spirituality’ which is needed to ‘motivate’ and ‘inspire’ humanity (§ 216). We all need an ‘ecological conversion’ which ‘is not an optional aspect of our Christian experience’ (§ 217).
The Wisdom of the Biblical Accounts
65. Without repeating the entire theology of creation, we can ask what the great biblical narratives say about the relationship of human beings with the world. In the first creation account in the Book of Genesis, God’s plan includes creating humanity. After the creation of man and woman, “God saw everything that he had made, and behold it was very good” (Gen 1:31). The Bible teaches that every man and woman is created out of love and made in God’s image and likeness (cf. Gen 1:26)… How wonderful is the certainty that each human life is not adrift in the midst of hopeless chaos, in a world ruled by pure chance or endlessly recurring cycles! The Creator can say to each one of us: “Before I formed you in the womb, I knew you” (Jer 1:5). We were conceived in the heart of God, and for this reason “each of us is the result of a thought of God. Each of us is willed, each of us is loved, each of us is necessary”. 
66. The creation accounts in the book of Genesis contain, in their own symbolic and narrative language, profound teachings about human existence and its historical reality. They suggest that human life is grounded in three fundamental and closely intertwined relationships: with God, with our neighbour and with the earth itself. According to the Bible, these three vital relationships have been broken, both outwardly and within us. This rupture is sin. The harmony between the Creator, humanity and creation as a whole was disrupted by our presuming to take the place of God and refusing to acknowledge our creaturely limitations. This in turn distorted our mandate to “have dominion” over the earth (cf. Gen 1:28), to “till it and keep it” (Gen 2:15). As a result, the originally harmonious relationship between human beings and nature became conflictual (cf. Gen 3:17-19). It is significant that the harmony which Saint Francis of Assisi experienced with all creatures was seen as a healing of that rupture. Saint Bonaventure held that, through universal reconciliation with every creature, Saint Francis in some way returned to the state of original innocence.  This is a far cry from our situation today, where sin is manifest in all its destructive power in wars, the various forms of violence and abuse, the abandonment of the most vulnerable, and attacks on nature.
67. We are not God. The earth was here before us and it has been given to us. This allows us to respond to the charge that Judaeo-Christian thinking, on the basis of the Genesis account which grants man “dominion” over the earth (cf. Gen 1:28), has encouraged the unbridled exploitation of nature by painting him as domineering and destructive by nature. This is not a correct interpretation of the Bible as understood by the Church… The biblical texts are to be read in their context, with an appropriate hermeneutic, recognizing that they tell us to “till and keep” the garden of the world (cf. Gen 2:15). “Tilling” refers to cultivating, ploughing or working, while “keeping” means caring, protecting, overseeing and preserving. This implies a relationship of mutual responsibility between human beings and nature. Each community can take from the bounty of the earth whatever it needs for subsistence, but it also has the duty to protect the earth and to ensure its fruitfulness for coming generations. “The earth is the Lord’s” (Ps 24:1); to him belongs “the earth with all that is within it” (Dt 10:14). Thus God rejects every claim to absolute ownership: “The land shall not be sold in perpetuity, for the land is mine; for you are strangers and sojourners with me” (Lev 25:23).
Ecological Spirituality and Conversion
209. An awareness of the gravity of today’s cultural and ecological crisis must be translated into new habits. Many people know that our current progress and the mere amassing of things and pleasures are not enough to give meaning and joy to the human heart, yet they feel unable to give up what the market sets before them. In those countries which should be making the greatest changes in consumer habits, young people have a new ecological sensitivity and a generous spirit, and some of them are making admirable efforts to protect the environment. At the same time, they have grown up in a milieu of extreme consumerism and affluence which makes it difficult to develop other habits…
216. The rich heritage of Christian spirituality, the fruit of twenty centuries of personal and communal experience, has a precious contribution to make to the renewal of humanity. Here, I would like to offer Christians a few suggestions for an ecological spirituality grounded in the convictions of our faith, since the teachings of the Gospel have direct consequences for our way of thinking, feeling and living. More than in ideas or concepts as such, I am interested in how such a spirituality can motivate us to a more passionate concern for the protection of our world. A commitment this lofty cannot be sustained by doctrine alone, without a spirituality capable of inspiring us, without an “interior impulse which encourages, motivates, nourishes and gives meaning to our individual and communal activity”. 
217. “The external deserts in the world are growing, because the internal deserts have become so vast”.  For this reason, the ecological crisis is also a summons to profound interior conversion. It must be said that some committed and prayerful Christians, with the excuse of realism and pragmatism, tend to ridicule expressions of concern for the environment. Others are passive; they choose not to change their habits and thus become inconsistent. So what they all need is an “ecological conversion”, whereby the effects of their encounter with Jesus Christ become evident in their relationship with the world around them. Living our vocation to be protectors of God’s handiwork is essential to a life of virtue; it is not an optional or a secondary aspect of our Christian experience.
- Benedict XVI, Homily for the Solemn Inauguration of the Petrine Ministry (24 April 2005): AAS 97 (2005), 711.
- Cf. Bonaventure, The Major Legend of Saint Francis, VIII, 1, in Francis of Assisi: Early Documents, vol. 2, New York-London-Manila, 2000, 586.
Francis, Apostolic Exhortation Evangelii Gaudium (24 Nov 2013), 261: AAS 105 (2013), 1124.
- Benedict XVI, Homily for the Solemn Inauguration of the Petrine Ministry (24 April 2005): AAS 97 (2005), 710.