Ecosystems are communities of plants, animals and microorganisms that have evolved over billions of years so as to maximize their long term survival and sustainability. So a sustainable human community must be designed in such a manner that its ways of life, businesses, economy, physical structures and social institutions do not interfere with nature’s inherent ability to sustain life.











St. Francis: It's the tribes that settled there, Lord. They are called the Suburbanites. They started calling your flowers "weeds" and went to great lengths to kill them and replace them with grass. 
I recall reading on several
sam bell Says:I recall reading on several ocassions that the average suburban lawn receives more pesticide and fertiliuzer applications per acre than does commercial agricultural land. The figure that I recall was about a 7 to 1 ratio!
It's interesting that the American lawn developed from what was primarily a European defensive landscaping feature. Medevil fortesses typically featured a green as an easily surveilled outer killing zone on which invaders were easily spotted. It is this association with the "baronial manse" that apparently contributes to the lawn's status and popularity. The archetypal green also served as a grazing meadow in early stages of a seige.
So are lawns really a manifestation of suburban insecurity? I don't pretend to know. But there's no doubt that the typical lawn is a tremendously wasteful use of land. Planting, preferably with native species, can often result in increased carbon sequestration due to increased biomass (per square foot) and reduced water usage, increased soil water retention, and a host of other ecological boons. Remember, too, that an hour's mowing with the average gasoline-powered mower results in more pollution than three hours of freeway driving.
Many homeowners in our neighborhood are devoting increasing amounts of yard space to less-traditional lawns. These highly individualistic plantings look great in their beauty and diversity.