I write this thesis based on the premise that many environmental problems are the result of conventional community design. I argue that conventional community designs are "anti-ecological" because they consume too much energy, produce an extraordinary amount of waste, are car-oriented, ignore any relationship with the natural environment, and reflect the irresponsible attitude of man conquering nature. However, I suggest that ecologically responsible community design alternatives do exist. I refer to these alternatives as "ecological communities". These communities attempt to function as ecosystems that conserve natural resources, are self-regulating, and produce little waste. / I present the central principles of ecological communities, and then explore the validity of these assertions. Using five ecological communities from Northern Europe, I examine the following principles: (1) alternative energy systems at the community-scale, (2) wastewater treatment and water reclamation, (3) waste management in the community, (4) ecologically sustainable landscapes, and (5) environmentally responsible housing. / Finally, I present my observations and conclusions. The observations are intended to help community designers to understand the characteristics of ecological communities, and perhaps some of the conditions necessary for these communities to exist. The hope is that these observations may assist community designers avoid common mistakes on similar projects. The observations may shorten the time designers require to transfer their ideas from theory into practice. I conclude that when compared with conventional communities--not with perfection or the utopian dream--ecological communities and what they represent can provide designers with viable development alternatives.

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