There will be a "new area of healing" for nature when the economy quits growing, with its ever increasing demand for more space, energy and resources. Now wildlife will benefit, but so will outdoor recreation and the vital services nature provides, like climate regulation and water purification. The healing in this encouraging scenario includes less industrial waste. Not only resources, but the capacity of Earth to absorb wastes is also limited. Don't miss the whole story. Read Dietz and Dan O'Neill's Enough Is Enough.
Maybe I worry too much. It's because I was imprinted with rolling green hills between the towns east of San Francisco Bay and quiet beaches at Lake Tahoe. If you were born after 1960, you were imprinted with solid suburbia around San Francisco Bay and crowded beaches at Lake Tahoe. Imprinting is powerful. What you experience in your early youth is what you believe is normal--the way the world should be. Now the pundits say Earth can't support 7 billion people at a decent standard of living, but everyone born now will believe that is what is normal--that is how the world is supposed to be. They're imprinted with "Too many is okay." What can we do? Too many people are hungry.
We are cutting down too many trees too fast, paving over too much arable land, polluting too much water--but you know all that. If you don't, here are a few books to read: Anasazi America by David E. Stuart,
For the Common Good by Herman Daly and John Cobb,
Plan B by Lester Brown, and
Hot, Flat and Crowded by Thomas Friedman.
The analogy of the Hen House is obvious. Too many birds in the house or pen make for too much waste, crowding on the roosts, and nest stealing. It doesn't take too many hens to trample a small pen into hardpan, where nothing grows. Domestic birds of all kinds play pecking-order games, which are not fun for the lower hens on the totem pole.