What to Think of Ecology?

Christian ecology did not begin with Pope Francis in 2015. The awareness that creation is a gift, and man a responsible guardian, runs through the entire Catholic tradition. The Canticle of the Creatures, composed by Saint Francis of Assisi in late 1224 – early 1225 at the chapel of San Damiano in Assisi, is an exalted praise of the Creator through his works: Brother Sun, Sister Moon, Brother Wind, Sister Water, Brother Fire, Sister Earth^[6]. It is one of the oldest texts in the Italian vernacular and remains, eight centuries later, the spiritual matrix of all authentic Catholic ecology.

"Most High, all-powerful, good Lord, yours are the praises, the glory and the honour and every blessing. To you alone, Most High, do they belong, and no man is worthy to name you. Praised be you, my Lord, with all your creatures, especially Sir Brother Sun, through whom you give us the day, the light: he is beautiful, radiant with great splendour, and of you, Most High, he offers us the symbol." — Saint Francis of Assisi, Canticle of the Creatures, San Damiano, late 1224 – early 1225^[7]

Ecology is therefore not, for Catholics, a recent cause imported from outside. It is a reception of this tradition, to which John Paul II gave official magisterial status by proclaiming Saint Francis of Assisi heavenly patron of environmentalists through the apostolic letter Inter sanctos of 29 November 1979^[8]. Before this proclamation, there were intuitions and saints; since then, there has been a genuine Catholic doctrine of ecology, built in stages over four decades.

Before examining what the Church teaches about the contemporary ecological crisis, we must return to the bedrock that makes this teaching possible: the biblical vision of creation. It is this bedrock that distinguishes the Catholic position both from the paganism that sacralises nature and from the materialism that reduces it to a stock of resources.

A creation that "was good"

The Genesis account repeats seven times, as God unfolds his work, that "it was good" (Gen 1:4, 10, 12, 18, 21, 25), then culminates in "it was very good" (Gen 1:31) after the creation of man and woman^[9]. This litany is not a literary detail. It affirms that the material world is intrinsically good, willed for itself by God before any human use. It is already a radical critique both of utilitarian materialism (matter is not a mere stock) and of spiritualist dualism (matter is not an evil to flee). The Compendium of Social Doctrine sums it up thus:

"The faith of Israel lives in the time and space of this world, perceived not as a hostile environment or as an evil from which it must free itself, but rather as the very gift of God, the place and the project that he entrusts to the responsible conduct and labour of man. Nature, the work of divine creative action, is not a dangerous competitor." — Pontifical Council for Justice and Peace, Compendium of the Social Doctrine of the Church, 2004, § 451^[10]

To "till and keep" the garden (Gen 2:15)

The central text for Christian ecology is the verse on the second page of the Bible: "The Lord God took the man and put him in the garden of Eden to till it and keep it" (Gen 2:15). The two Hebrew verbs are decisive and not interchangeable. The verb rendered till (in Hebrew abad) means to work, to transform, to make fruitful, to draw from the earth what it can give. The verb rendered keep (in Hebrew shamar) means to protect, to watch over, not to destroy, to hand on^[11]. Biblical man is neither the absolute master nor a mere visitor: he is at once worker and watchman. Laudato si' insists explicitly on this double dimension:

"Whereas tilling means ploughing, clearing or working, keeping means protecting, safeguarding, preserving, caring for, watching over. This implies a relationship of responsible reciprocity between human beings and nature. Each community can take from the bounty of the earth what it needs to survive, but it also has the duty to safeguard it." — Pope Francis, Laudato si', 24 May 2015, § 67^[12]

A "dominion" that is measured, never absolute

The verse Gen 1:28 — "fill the earth and subdue it, have dominion over the fish of the sea, the birds of the air and every living thing" — has been accused, since Lynn White Jr. in 1967, of having founded the ecological arrogance of Western civilisation^[13]. It is an accusation to which the Church has explicitly replied. Laudato si' states plainly:

"We are not God. The earth precedes us and has been given to us. [...] This is not a correct interpretation of the Bible, as understood by the Church. While it is true that we Christians have at times misinterpreted the Scriptures, we must forcefully reject today the idea that, from our having been created in the image of God and from the mission to dominate the earth, there follows for us an absolute domination over other creatures." — Pope Francis, Laudato si', § 67^[14]

The Catechism decides the matter in the same way: the dominion granted by the Creator to man "is not absolute; it is measured by concern for the quality of life of one's neighbour, including generations to come; it requires a religious respect for the integrity of creation"^[15]. John Paul II was already saying in 1991 that man must not "dispose of the earth arbitrarily, subjecting it without measure to his will, as if it did not have a form and a prior destination given by God, which man may develop but must not betray" ^[16]. Biblical dominion is therefore a stewardship — in Latin ministerium — man is a steward, not an owner.

Christ, Lord and servant of creation

Christian ecology does not stop at Genesis. The New Testament extends and fulfils the creational vision. Jesus speaks of nature through his parables, looks at the birds of the air and the lilies of the field (Mt 6:26-30), calms the storm (Mk 4:39), feeds the crowds from little (Mt 14:13-21). The Passover itself is cosmic: darkness covers the earth, the veil of the Temple is torn, the earth shakes (Mt 27:45, 51) — creation shares in the drama of the rejected Son of God^[17]. Saint Paul teaches it in decisive terms:

"The whole of creation is groaning even now in the pangs of childbirth. [...] It too will be set free from slavery to corruption, to enter into the freedom of the glory of the children of God." — Saint Paul, Letter to the Romans, 8:22^[18]

And Revelation completes the revelation with the promise of a "new heaven and a new earth" (Rev 21:1) — not the destruction of the world, but its transfiguration^[19]. This Christian eschatology is central to distinguishing Catholic hope from ecological catastrophism. Christians do not think they save the earth by their public policies alone; nor do they think it is condemned. They know it will be transfigured, and that this hope does not dispense them from cultivating it, keeping it, and handing it on.

The Church's teaching on ecology is not a contemporary improvisation. It was built up in successive layers, in strict doctrinal continuity, from Paul VI to Francis. The table below gives the great moments of this construction.

Sollicitudo rei socialis (1987): three decisive principles

The first magisterial text to formulate an articulated ecological doctrine is the social encyclical Sollicitudo rei socialis of John Paul II, signed on 30 December 1987. Its paragraph 34 lays down three principles that will structure all subsequent texts. First principle: beings, living or inanimate, cannot be used "as one pleases, according to one's own economic needs" — the nature of each being and its mutual bonds in an ordered system, the cosmos, must be taken into account. Second principle: natural resources are limited, some are not renewable, and using them as if inexhaustible compromises their availability for future generations. Third principle: uncontrolled industrialisation produces pollution with grave health consequences^[30]. These three principles, formulated four decades ago, remain the Catholic grid for reading the ecological crisis.

The 1990 peace message: creation as a moral problem

For the World Day of Peace on 1 January 1990, John Paul II devoted an entire message to ecology, entitled "Peace with God the Creator, Peace with All of Creation". It is the first time a pope gave the ecological question the status of a world peace issue. Its § 6 is entitled "The ecological crisis: a moral problem" : no purely technical answer suffices^[31]. John Paul II denounces hedonism and unrestrained consumption there (§ 13) — before Francis names the "throwaway culture" — and calls for an authentic conversion in ways of thinking and behaving. The message is also notable because it does not isolate ecology from the defence of human life: the same logic of irresponsibility threatens ecosystems and embryos.

Centesimus annus (1991): human ecology

Four years later, in the social encyclical Centesimus annus (1 May 1991), John Paul II forged a concept that Benedict XVI and then Francis would take up: human ecology. Paragraph 37 denounces the "irrational destruction of the natural environment" and paragraph 38 opens up a new field:

"Too little effort is made to safeguard the moral conditions for an authentic human ecology. Not only has the earth been given by God to man, who must use it with respect for the original good intention in which it was given to him, but man too is given by God to himself, and must therefore respect the natural and moral structure with which he has been endowed." — Saint John Paul II, encyclical Centesimus annus, 1 May 1991, § 38^[32]

The idea is foundational: the defence of nature and the defence of human nature cannot be separated. A civilisation that destroys its environment also destroys, by the same logic of irresponsible domination, the family, the body, the dignity of the person.

The Catechism (1992-1997): §§ 2415-2418

The Catechism of the Catholic Church, published in 1992 and then in its definitive edition in 1997, codifies the question in four very dense paragraphs placed under the seventh commandment ("You shall not steal"). § 2415 calls for "respect for the integrity of creation", recalls that animals, plants and inanimate beings are "by nature destined for the common good of past, present, and future humanity", and specifies that the dominion given to man is not absolute^[33]. § 2416 recalls the kindness owed to animals, citing the example of Saint Francis of Assisi and Saint Philip Neri. § 2417 legitimises the use of animals for food, clothing, work, and medical experiments "within reasonable limits". § 2418 firmly closes the door to sentimentalist deviations: "It is contrary to human dignity to cause animals to suffer or die needlessly. It is likewise unworthy to spend money on them that should as a priority go to the relief of human misery. One can love animals; one should not direct to them the affection due only to persons." ^[34]

Benedict XVI: Caritas in veritate and the Bundestag

Benedict XVI extends the teaching in two stages. First in the social encyclical Caritas in veritate (29 June 2009), where paragraphs 48 to 51 develop the idea of an integral ecology before the term. The pope affirms there that "the book of nature is one and indivisible, whether it concerns the environment or life, sexuality, marriage, the family, social relations, in a word integral human development. The duties we have towards the environment are linked to the duties we have towards the person considered in herself and in her relation to others." ^[35]

Then, in a resounding address to the German Bundestag on 22 September 2011, Benedict XVI acknowledged the legitimacy of the ecological movement of the 1970s — "a cry for fresh air" — but immediately widened its scope:

"The importance of ecology is now undisputed. We must listen to the language of nature and respond to it with consistency. I would like, however, to address forcefully a point that today as yesterday seems to me largely neglected: there is also an ecology of man. Man too has a nature that he must respect and that he cannot manipulate at will." — Benedict XVI, address to the Bundestag, Reichstag, Berlin, 22 September 2011^[36]

This sentence has become central in the Catholic debate on ecology. It lays down the ontological limit that all Christian ecology must recognise: one cannot defend the Amazon rainforest while denying the sexed nature of the human body, nor biodiversity while endorsing abortion.

Laudato si' (2015): the social encyclical of the 21st century

Signed on 24 May 2015 (the solemnity of Pentecost) and published on 18 June 2015, Laudato si' is the first social encyclical of Pope Francis entirely devoted to ecology — "Praise be to you", in reference to the Canticle of the Creatures of Saint Francis of Assisi. The text runs to 246 paragraphs in six chapters^[37].

Three leading ideas structure the encyclical. First idea: integral ecology. The environmental crisis cannot be isolated from a social, cultural, anthropological and spiritual crisis — "there are not two separate crises, one environmental and the other social, but rather one complex crisis which is both social and environmental" ^[38]. Second idea: the cry of the earth and the cry of the poor are inseparable. Third idea: the technocratic paradigm is the spiritual root of the crisis — a way of understanding reality that reduces the world to an object of manipulation and that contaminates the economy, politics, and even human relations^[39].

Laudate Deum (2023): eight years later, the worsening

On 4 October 2023 — the feast of Saint Francis of Assisi — Francis published a short (73 paragraphs) apostolic exhortation entitled Laudate Deum, "Praise God". The text is unusual: it notes, eight years after Laudato si', that the reactions of states and consciences are insufficient, and it intervenes explicitly in the scientific debate to refute climate denialism^[40].

"I have realised with the passage of time that our responses have not been adequate, while the world that welcomes us is crumbling and may be nearing the breaking point." — Pope Francis, Laudate Deum, 4 October 2023, § 2^[41]

Laudate Deum also explicitly closes the door to misguided anthropocentrism while refusing egalitarian biocentrism: "The Judeo-Christian vision of the cosmos defends the particular and central value of the human being amid the marvellous concert of all beings, but today we are obliged to recognise that only a 'situated anthropocentrism' is possible" — human life, the Pope specifies, is "incomprehensible and unsustainable without other creatures" ^[42]. The final sentence of the document has become famous: "A human being who claims to take the place of God becomes the worst danger to himself." ^[43]

The Compendium of Social Doctrine (2004)

For Catholic writers, the most complete reference text remains chapter X of the Compendium of the Social Doctrine of the Church, published by the Pontifical Council for Justice and Peace in 2004. It covers, in thirty-seven very dense paragraphs (§§ 451-487), the biblical aspects, the man-universe relationship, the crisis, common responsibility, biotechnologies, and the sharing of goods^[44]. It is the doctrinal bedrock on which Laudato si' would build eleven years later.

The central concept Francis proposes in 2015 is that of integral ecology. It is not a slogan, but a precise thesis: the ecological crisis, the social crisis, the family crisis, the cultural crisis and the spiritual crisis are not parallel problems to be treated separately — they are facets of one and the same crisis of the relationship with God, with oneself, with others and with the world.

Everything is connected

The expression everything is connected runs like a refrain through Laudato si'. It does not mean a cosmic pantheism in which everything would be equivalent to everything else, but a real interdependence that contemporary science, economics, sociology and anthropology each confirm in their own way.

"Given that everything is intimately connected, and that current problems require a gaze that takes into account all aspects of the global crisis, I now propose that we pause to think about the various components of an integral ecology, which clearly has human and social dimensions." — Pope Francis, Laudato si', § 137^[45]

Integral ecology has a concrete and demanding moral consequence: one cannot be consistent in defending nature against polluters while simultaneously despising the poor, unborn children, the elderly or persons with disabilities. Conversely, one cannot claim to defend human life while treating the planet as a stock to be exploited without measure. It is a thesis demanding on both sides of the usual political debate.

The cry of the earth and the cry of the poor

The most quoted idea of Laudato si' — to the point that it gave its name to a permanent Vatican action programme, the Laudato Si' Action Platform launched in 2021 — is this double cry. These are not two separate causes: they are two sides of one reality, because environmental damage always strikes the weakest first.

"Today, we cannot fail to recognise that a true ecological approach always becomes a social approach, which must integrate justice into discussions on the environment, so as to hear both the cry of the earth and the cry of the poor." — Pope Francis, Laudato si', § 49^[46]

The pope goes further in the same paragraph: he explicitly denounces the "biased" analyses of a certain "green" discourse that ignores real poor people because it is conceived "in isolated urban areas, without direct contact with the problems of the excluded". It is a frontal critique of salon ecology, signed by the pope himself.

Human ecology: respecting one's own nature

Integral ecology does not stop at defending ecosystems; it includes human ecology, that is, respect for the nature of man. Paragraph 155 of Laudato si' explicitly takes up Benedict XVI:

"Human ecology also implies something very profound: the relationship between human life and the moral law inscribed in its own nature [...]. Acceptance of one's own body as God's gift is necessary for welcoming and accepting the entire world as a gift from the Father and our common home; whereas a logic of domination over one's own body becomes a logic, at times subtle, of domination over creation." — Pope Francis, Laudato si', § 155^[47]

This sentence bridges environmental ecology and Catholic anthropology. Refusing one's received body — one's femininity or masculinity — follows the same logic as refusing the rhythms of creation. Conversely, receiving one's body as a gift opens one to receiving the world as a gift.

Future generations

Integral ecology has an intergenerational dimension. The Compendium already insisted on the "responsibility that present generations have towards future generations" ^[48]. Laudato si' radicalises the formulation:

"We can no longer speak of sustainable development apart from intergenerational solidarity. [...] If the earth is given to us, we can no longer think only in terms of a utilitarian criterion of efficiency and productivity for individual benefit." — Pope Francis, Laudato si', § 159^[49]

It is a frontal moral critique of short-termism in finance and politics: exhausting non-renewable resources today in the name of immediate profit is, for Catholic social doctrine, an injustice towards those not yet born.

A rightly ordered anthropocentrism

Catholic integral ecology maintains the primacy of the human person over other creatures, but places it within an order. It refuses both egalitarian biocentrism (which would put man on the same level as other living beings) and deviant anthropocentrism (which would make man an absolute dominator, without duties). The Compendium is very explicit:

"A correct conception of the environment cannot, on the one hand, reduce nature in a utilitarian manner to a mere object of manipulation and exploitation, and must not, on the other hand, absolutise it and make it prevail over the human person in terms of dignity. In the latter case, one arrives at divinising nature or the earth, as can easily be seen in certain ecological movements." — Pontifical Council for Justice and Peace, Compendium, 2004, § 463^[50]

This is the Catholic key for reading ecology: refuse the two symmetrical excesses, and hold a situated anthropocentrism, in which man keeps his unique dignity but accepts his limits as a creature.

Before examining possible deviations, we must honestly recognise what the contemporary ecological movement has brought to the common consciousness and which the Church confirms.

Resources are not infinite

The first sound point of ecological awareness is to recall a truth long forgotten by industrial optimism: the planet is finite. Certain resources — fresh water, arable soils, minerals, hydrocarbons, biodiversity — do not renew themselves, or renew at a pace incompatible with their contemporary exploitation. John Paul II had already formulated this in 1987 in Sollicitudo rei socialis § 34, speaking explicitly of the "limited" character of resources and of the danger of using them "as if inexhaustible" ^[51]. This intuition has become the common sense of ecology, and there is no reason for a Catholic to refuse it.

The poor pay the price first

The second sound point concerns intergenerational and geographical justice. Environmental disorders strike the weakest first: populations living on lands subject to erosion and desertification, indigenous communities dependent on local ecosystems, inhabitants of the polluted suburbs of the great cities of the South, populations exposed to armed conflicts over resources^[52]. This observation is documented by the major international assessments: the IPCC finds that the adverse effects of climate change strike disproportionately the poorest and most vulnerable populations^[53], and the World Bank estimates that climate disruption could force up to 216 million people to migrate within their own country by 2050^[54]. The Catholic Church has made it an official doctrinal conviction — the Compendium affirms that the current environmental crisis "strikes the poorest particularly" (§ 482)^[55].

Consumerism makes man less free

The third sound point is anthropological. Compulsive consumption, far from being a sign of freedom, is often a disguised servitude. Romano Guardini, quoted by Laudato si', observed from the first half of the 20th century what Pope Francis takes up word for word in the encyclical:

"Man accepts the standardised things and forms of life as they are imposed on him by rational plans and normalised machine products, and, on the whole, he does so with the impression that all this is reasonable and right." — Romano Guardini, The End of the Modern World, quoted by Laudato si' § 203^[56]

The contemporary market drives an obsessive consumerism that occupies the heart and closes the gaze. Christian sobriety, far from being a sad degrowth, is an inner liberation from this servitude — a theme that the entire Catholic spiritual tradition, from Saint Benedict to Saint Thérèse of Lisieux, has never ceased to propose as a path of joy.

Nature cannot be reduced to an object of use

The fourth sound point is metaphysical. Contemporary ecological awareness, even among those who do not believe in God, rediscovers the intuition that nature is not a mere stock, that it has a beauty, an order, a grandeur that overflow any purely market valuation. This is exactly what the Christian tradition has always taught: creation is an epiphany of God, to be contemplated before being exploited.

"The whole universe, with its manifold relations, reveals better the inexhaustible richness of God." — Pope Francis, Laudato si', 24 May 2015, § 86^[57]

A climate that is no longer the neutral backdrop of the world

Finally, the fifth sound point is scientific. The climate, long considered a stable backdrop to human affairs, has revealed itself to be a system modified by human activity. The Compendium of Social Doctrine already affirms in 2004 that "the climate is a good that must be protected" ^[58]. Laudate Deum (2023) goes further by intervening directly in the scientific debate to refute denialism:

"There is no longer any doubt about the human — anthropic — origin of climate change. Let us see why. The concentration of greenhouse gases in the atmosphere, which causes global warming, was stable until the 19th century [...]. Over the last fifty years, this increase has accelerated markedly." — Pope Francis, Laudate Deum, § 11^[59]

Catholics are under no obligation to adhere to every precise climate forecast (the Church has no scientific competence), but they have no religious motive either to align with denialism. The official magisterial position, since 2015 and confirmed in 2023, acknowledges the majority scientific consensus on the human origin of warming.

Recognising what ecology gets right does not prevent — on the contrary, it requires — discerning its deviations. Ecology is not an absolute. When it claims to become a total vision of reality, it becomes an ideology, and sometimes even an idolatry. This is what the Church, in the wake of the Compendium and Laudato si', denounces with an insufficiently known firmness.

Green paganism: divinising the earth

The first deviation is the divinization of nature, what the Compendium of Social Doctrine explicitly calls "divinising nature or the earth" ^[60]. This temptation takes diverse forms: cosmic romanticism, neo-druidism, celebration of a Pachamama or Mother Earth as a sacred entity, avowed neo-paganism. The Magisterium is unambiguously opposed to it. Laudato si' specifies:

"This does not imply either a divinisation of the earth that would deprive us of the call to collaborate with it and to protect its fragility. These conceptions would end up creating new imbalances in an attempt to escape the reality that challenges us." — Pope Francis, Laudato si', § 90^[61]

The Compendium adds that the Magisterium opposes ecocentrism and biocentrism, whose logic "proposes to eliminate the ontological and axiological difference between man and other living beings, considering the biosphere as a biotic unity of undifferentiated value" ^[62]. Creation deserves respect, contemplation and care; it does not deserve adoration, which is due to God alone. When nature is deified, both God and nature are lost: God, because He is confused with His work; nature, because it is expected to give what it cannot give.

Malthusianism: making the child a problem

The second deviation — historically the most structured — is Malthusianism: the thesis that population growth is responsible for ecological disorder and that births must therefore be reduced, sometimes by coercion. This thesis, originally formulated by Thomas Malthus in 1798, became in the second half of the 20th century a dominant framework of international "reproductive health" policies. John Paul II was already answering it in Centesimus annus. Laudato si' decides the matter head-on:

"Instead of resolving the problems of the poor and thinking of a different world, some merely propose a reduction in the birth rate. [...] Population growth is fully compatible with an integral and shared development. Blaming population growth instead of the extreme and selective consumerism of some is a way of refusing to face the problems." — Pope Francis, Laudato si', § 50^[63]

Catholic logic is rigorous: if the problem is the consumerism of a rich minority, it is not solved by eliminating the children of a poor majority. A society that throws away a third of its food^[64] does not become virtuous by blaming cradles. And the Compendium specifies that the Malthusian thesis must not "serve as a pretext for political and economic choices inconsistent with the dignity of the human person" ^[65]. This position is one of the non-negotiable red lines of an authentic Catholic ecology.

Green technocracy: claiming to control everything

The third deviation is subtler and more contemporary. It is green technocracy: under the pretext of saving the planet, total control is claimed over behaviours, bodies, families, births, by a centralised bureaucratic power. Laudato si' devotes an entire development to it (paragraphs 101-114) under the name of the technocratic paradigm. It is, for Pope Francis, the spiritual root of the ecological crisis, and not its solution.

"The technocratic paradigm also tends to exert its grip on the economy and politics. The economy takes on all technological development with a view to profit, without heed for any negative consequences for human beings. [...] The time has come to pay renewed attention to reality with the limits it imposes." — Pope Francis, Laudato si', §§ 109 and 116^[66]

The idea is subtle: the same mentality that claims to transform nature without limit through technology is the one that, in other guise, then claims to save it through still more technology — Laudato si' § 111 denounces purely "technical" solutions to ecological problems. In passing, the pope flags the risks of a global geoengineering project in which an elite would decide for all, without democracy, without subsidiarity, and in contempt of local cultures.

Ecology as a substitute religion

The fourth deviation is that of an ecology that becomes a substitute religion: when green discourse adopts religious forms — permanent guilt-tripping, eschatology without redemption, indisputable dogmas, devotees and heretics — without the God of the Gospel, it produces an anxiety without hope in those it claims to mobilise. Respect for the creature flows from faith in a good Creator; it needs neither a catastrophic vision of the world nor a green clergy. This is also the analysis of the philosopher Pascal Bruckner, a non-Catholic, in The Fanaticism of the Apocalypse (2011)^[67]. The Church does not judge the sincerity of persons; it observes that this dynamic imitates religious structures without carrying their hope.

The instrumentalization of the ecological cause

The fifth deviation is sociological: the ecological cause can be instrumentalized — used as an instrument of power, profit or image, without the sobriety it preaches. Pope Francis himself warns against a certain "green" discourse conceived "in isolated urban areas, without direct contact with the problems of the excluded" ^[68]. And the facts give this warning concrete substance: the climate summits themselves regularly offer the contrast between calls for sobriety and the means deployed to attend them — at COP28 in Dubai, in December 2023, the British press noted that several leaders, including Prime Minister Rishi Sunak, Foreign Secretary David Cameron and King Charles III, each travelled there in a separate plane^[69], while a University College London study found that hundreds of delegates reached the summit by private jet, with emissions per passenger roughly ten times those of a commercial flight^[70].

This observation is not an argument against ecology; it is an argument against the instrumentalization of ecology. The Catholic position asks of environmentalists the same thing as of any other public actor: consistency between words and life. The Australian Cardinal George Pell, in a 2015 interview with the Financial Times, formulated another limit: the Church "has no particular expertise in science" and "has received from the Lord no mandate to pronounce on scientific matters" ^[71]. It is a useful reminder: a social encyclical does not settle a question of physics; it lays down a moral framework and guides discernment.

Refusing the received body

The sixth deviation, rarer but grave, is the one that claims to defend nature while denying human nature: refusing the received sexed body, presenting motherhood as an ecological burden, making humanity itself a problem for the planet. Benedict XVI at the Bundestag and Francis in Laudato si' § 155 answer this temptation with the same argument: one cannot accept the world as a gift while rejecting one's own body as a gift^[72]. Christian ecology is, by construction, an ecology that respects nature down to human nature itself.

One precise thesis deserves to be isolated, because it is one of the most distinctive points of Catholic ecology and one of the most controversial in contemporary opinion: defending creation is inseparable from defending human life, from conception. Laudato si' formulates it plainly in paragraph 120:

"Since everything is connected, the defence of nature is not compatible either with the justification of abortion. An educational path to welcome the weak people around us, who are at times annoying and inconvenient, seems impracticable if the human embryo is not protected, even if its coming causes discomfort and difficulties." — Pope Francis, Laudato si', § 120^[73]

It is one of the passages least commented on by secular environmentalists, and most resonant for Catholic consistency. The logic is clear: if it is accepted that certain lives are "inconvenient" and may be eliminated, the principle has been accepted that then justifies every throwaway culture. Paragraph 117 of the same encyclical continues: "When we fail to acknowledge as part of reality the worth of a poor person, a human embryo, a person with disabilities — to offer just a few examples — it becomes difficult to hear the cry of nature itself" ^[74].

This is also why, in the magisterium table, ecology is never treated apart from the defence of life. The table below spells out some ethical consistencies that integral ecology imposes and that are often absent from political discourse.

This grid is not a personal opinion of the author: it is the concrete translation of paragraphs 117 to 122 of Laudato si', of § 155, and of §§ 463 to 484 of the Compendium of Social Doctrine.

Catholic ecology is not limited to a critical posture. It proposes a positive path, at once personal, communal and political, which Laudato si' calls "ecological conversion".

A free sobriety, not a sad degrowth

The first element of this conversion is sobriety. But it is very precisely distinct from guilt-ridden austerity. Pope Francis calls it a "free sobriety" or "joyful sobriety":

"Sobriety, when lived freely and consciously, is liberating. It is not less life, not a low intensity of life, but quite the opposite; for, in reality, those who enjoy more and live each moment better are those who stop nibbling here and there, always seeking what they do not have, and who experience what it is to value each person and each thing." — Pope Francis, Laudato si', § 223^[75]

Christian sobriety is a liberation, because it frees from the compulsive desire to buy, accumulate, replace. It opens onto true quality of life: presence, gratitude, contemplation, true relationships. It is rooted in a long Catholic spiritual tradition — Saint Benedict, Saint Francis, Saint Thérèse of Lisieux — which sees in simplicity not a privation, but a fullness.

Contemplate, give thanks, hand on

The second element is contemplation: learning to see creation other than as a stock. This is what the Canticle of the Creatures of Saint Francis teaches, and what Laudato si' takes up throughout its final part. Christians, before a sunset, a river, a forest, a face, do not calculate a cost or a use — they praise God, as the very title of Laudate Deum indicates.

"Christian spirituality proposes a growth marked by moderation and the capacity to be happy with little. It is a return to that simplicity which allows us to stop and appreciate the small things, to be grateful for the opportunities which life affords us, to be spiritually detached from what we possess, and not to succumb to sadness for what we lack." — Pope Francis, Laudato si', § 222^[76]

Added to contemplation are gratitude — receiving the world as a gift, and not as a right — and transmission — thinking of the generations to come, as an obligation of justice and not of sentimentality.

A hope that is not catastrophist

The third element is hope. This is what radically distinguishes Christian ecological conversion from secular apocalyptic catastrophism. Christians know that the world will be transfigured, that creation "will be set free from slavery to corruption" (Rom 8:21), that God will make "all things new" (Rev 21:5). They do not await the end of the world by the planet itself; they await it through Christ, and their present action is enlightened by this eschatology of transfiguration.

This hope also has an intra-historical side: before the definitive fulfilment, what Christians await is not first the end of the world, but the end of an age — the transition towards an era of peace within history itself, the seventh millennium as a day of rest in the image of the week of Creation, the Kingdom of the Divine Will lived on earth as in Heaven, according to the petition of the Our Father^[77]. A reign first interior — in hearts — and with no date fixed: this is what distinguishes it from millenarianism, which the Church has rejected "even in its mitigated form".

"The universe unfolds in God, who fills it completely. There is therefore a mystique in a leaf, in a path, in the dew, in the face of the poor. The ideal is not only to pass from the exterior to the interior to discover the action of God in the soul, but also to come to find him in all things." — Pope Francis, Laudato si', § 233^[78]

Christian hope is neither illusion nor passivity. It is what prevents both inner collapse (the "ecological grief" that psychologists diagnose today) and cynical flight (protective denialism). It is what makes it possible to act without panic and without despair.

Concrete action and inner silence

The fourth element, perhaps the most neglected, is the link between concrete action and inner silence. Laudato si' concludes with a long spiritual meditation (paragraphs 216-246) in which Pope Francis shows that without inner conversion, no structural reform holds. But he immediately adds that without structural conversion — political, economic, juridical — inner conversion remains isolated. The two are inseparable.

Concretely, a Catholic ecological conversion includes: simplifying consumption, choosing local and fair products, reducing waste, caring for home and neighbourhood, political and associative engagement for environmental justice, defending the most vulnerable (unborn children, the poor, the elderly, migrant workers), a daily prayer praising God for creation, a weekly rhythm ordered by Sunday, and handing on to children a non-consumerist relationship with the world. Laudato si' details these aspects in paragraphs 211 to 215, insisting on the value of gestures "that may seem insignificant" ^[79].

Catholic ecology has an official patron: Saint Francis of Assisi, proclaimed as such by John Paul II in 1979. It is a significant choice. Francis is not a theoretician, nor an activist: he is a mystic who discovered creation as praise. His radically poor life — he renounced his paternal inheritance to marry "Lady Poverty" — concretely illustrates joyful sobriety. His Canticle of the Creatures shows that nature, far from being a threat or an object, can be a path to God when received in praise.

Laudato si' presents him plainly as the source-figure of all authentic Christian ecology:

"I believe that Saint Francis is the example par excellence of care for the vulnerable and of an integral ecology lived out joyfully and authentically. [...] In him we see how inseparable the bond is between concern for nature, justice for the poor, commitment to society, and interior peace." — Pope Francis, Laudato si', § 10^[80]

Francis spoke to animals, but he did not divinise them; he venerated creation, but he adored the Creator; he lived in voluntary poverty, but without hatred of the world or bitterness against himself. It is precisely this living balance that Catholic spirituality proposes as a model, against the two extremes of green paganism and disenchanted materialism.

Ecology is an authentic Christian question. The Catholic position is not a posture of timid caution, but an articulated doctrine, built over four decades of magisterium, sourced in Genesis, the Catechism, the Compendium and two major social encyclicals. It holds together what ideologies separate.

It takes creation seriously because it is a gift. It takes the poor seriously because they are the image of God. It takes future generations seriously because they will exist. It takes the unborn child seriously because he already exists. It takes the sexed body seriously because it is given. It takes the climate seriously because it is the shared backdrop of human life.

But it refuses, with the same firmness, what disfigures this intuition. It refuses the divinization of the earth, because God alone is God. It refuses Malthusianism, because the child is never a problem. It refuses green technocracy, because human freedom is not an obstacle to be removed. It refuses ecology as a substitute religion, because true religion gives peace and not anguish. It refuses the instrumentalization of the ecological cause, because social doctrine demands consistency of life. It refuses the refusal of the received body, because ecology begins by accepting what is given.

Good ecology does not say: "man is the problem". It says: sinful man can damage the world, but converted man can cultivate it, keep it, hand it on, and use it to praise God. That is exactly the programme of the Canticle of the Creatures, written eight hundred years ago, and exactly the programme of Laudato si', signed ten years ago. The continuity between the two is the Catholic signature of the ecological question.

"Praised be you, my Lord." — Saint Francis of Assisi, Canticle of the Creatures, late 1224 – early 1225^[81]

• Should we be on the right or on the left? — discerning political questions without locking oneself into one camp.
• What to think of abortion? — why defending creation cannot exclude the unborn child.
• What to think of euthanasia? — the dignity of human life until its natural end.
• Evil and suffering — the Christian framework on the disorders of the world.
• The infinite love of God in creation — the contemplative dimension of creation as gift.