The encyclical letter Laudato Si is available here on the Vatican website. Pope Francis lists other places where ecological considerations may take root:
214. Political institutions and various other social groups are also entrusted with helping to raise people’s awareness. So too is the Church. All Christian communities have an important role to play in ecological education. It is my hope that our seminaries and houses of formation will provide an education in responsible simplicity of life, in grateful contemplation of God’s world, and in concern for the needs of the poor and the protection of the environment. Because the stakes are so high, we need institutions empowered to impose penalties for damage inflicted on the environment. But we also need the personal qualities of self-control and willingness to learn from one another.
Even if we weren’t talking about ecological upheaval, such qualilties would be good Christian ideals. Days of plenty and comfort should inspire gratitude, not greed.