"Theologically, we may speak of ecological sin. Attitudes that compromise the ecological equilibrium and provoke perverse consequences for living creatures and human beings are not restricted to the present but reach into the distant future, touching those who have not yet been born. The biblical precept "You shall not kill" (Ex. 20:13) may also refer to biocide and ecocide of the future. We are not permitted to create environmental and social conditions that produce disease and death for future living creatures, human and non-human. From this perspective we may understand generational solidarity - actions and attitudes that will allow those who do not yet inhabit this planet the right to live without disease and to enjoy a preserved and holistic environment."
"To reach the root of evils that confront us as well as to find a solution for them, we need a new theological worldview that sees this planet as a great sacrament of God, the temple of the Spirit, the place of creative responsibility for human beings, a dwelling place for all beings created in love. Etymologically, ecology has to do with dwelling place. Taking care of it, repairing it and adapting it to new threats, broadening it to allow new cultural and natural being - this is the task of ecology and its mission."
Leonardo Boff, "Social Ecology: Poverty and Misery"; in Ecotheology: Voices From South and North; 1994