Since God created the earth it must be good and without flaw. Things are wrong, however, things that make nature really look bad. Looking back, I can not say that nature is evil or fallen. Man has fallen away from God's original plan for him and it is because of this fall that the environmental problems we face today even exist. As humans we will use nature, that is a given.
All creatures use nature in some way, shape, or form.
The economic value is there for any organism. Man, however, has abused his position on earth. He has used too much too fast, without the consideration as to where the by-products are going and to whom the effects will be dealt. The environmental ignorance we have today and have had in the past is not natural. It has been created as a result of the greed and lusts of mankind since the fall.