Let us repeat one last time the central themes of this book. First, economic growth is premised on the creation of new forms of economic activity and these new forms are the source of new kinds of environmental change. Second, alongside the growth of new forms of economic activity arise groups with vested political interests opposed to environmental regulation. Third, if there is a moral obligation to preserve the natural environment, then a steady-state economy is a sufficient means for doing so. A significant percentage of the public in the U.S. and the U.K. seem to accept the idea of such a moral obligation.