Man was divided from God, first; and then, ever since the Fall, man is separated from himself.  These are the psychological divisions.  I am convinced that this is the basic psychosis: that the the individual is divided from himself as a result of the Fall.

The next division is that man is divided from other men; these are the sociological divisions.  And then man is divided from nature, and nature is divided from nature.  So there are these multiple divisions, and one day, when Christ comes back, there is going to be a complete healing of all of them, on the basis of the "blood of the Lamb."

But Christians who believe the Bible are not simply called to say that "one day" there will be healing, but that by God's grace substantially, upon the basis of the work of Christ, substantial healing can be a reality here and now.

(Francis Schaeffer, Pollution and the Death of Man: The Christian View of Ecology (Tyndale '70), pg. 67; thanks to my friend Dean Ohlman of The Wonder of Creation for pointing me to this groundbreaking call to creation care)