This will be a grab-bag for now until I can synthesize the contents of all the sources I mean to cite. First up:
A New Shared Economy for Appalachia: An Economy Built Upon Environmental Restoration, Carbon Sequestration, Renewable Energy and Ecological Design by John Todd at the University of Vermont. Todd has been thinking about and inventing new systems for many years, notably through Ocean Arks, http://www.oceanarks.org/–ecological resources for the 21st century. For example, natural water treatment ought to be primary consideration in dealing with the Great Bay’s pollution problem. Projects in the Northeast that use plants and landscapes to purity water can be done, and have been done, by John Todd and associates.