Caritas in Veritate §50

⁵⁰ This responsibility is a global one, for it is concerned not just with energy but with the whole of creation, which must not be bequeathed to future generations depleted of its resources. Human beings legitimately exercise a responsible stewardship over nature , in order to protect it, to enjoy its fruits and to cultivate it in new ways, with the assistance of advanced technologies, so that it can worthily accommodate and feed the world's population. On this earth there is room for everyone: here the entire human family must find the resources to live with dignity, through the help of nature itself — God's gift to his children — and through hard work and creativity. At the same time we must recognize our grave duty to hand the earth on to future generations in such a condition that they too can worthily inhabit it and continue to cultivate it. This means being committed to making joint decisions “after pondering responsibly the road to be taken, decisions aimed at strengthening that covenant between human beings and the environment , which should mirror the creative love of God, from whom we come and towards whom we are journeying” . Let us hope that the international community and individual governments will succeed in countering harmful ways of treating the environment. It is likewise incumbent upon the competent authorities to make every effort to ensure that the economic and social costs of using up shared environmental resources are recognized with transparency and fully borne by those who incur them, not by other peoples or future generations: the protection of the environment, of resources and of the climate obliges all international leaders to act jointly and to show a readiness to work in good faith, respecting the law and promoting solidarity with the weakest regions of the planet . One of the greatest challenges facing the economy is to achieve the most efficient use — not abuse — of natural resources, based on a realization that the notion of “efficiency” is not value-free.