ecological efficiency

  • 121Emergy — The term Emergy was originally coined by David M. Scienceman in collaboration with the late Howard T. Odum. H.T.Odum used emergy to mean both sequestered energy and emergent property of energy use [ H.T.Odum, 1988,… …

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  • 122Sustainability — Achieving sustainability will enable the Earth to continue supporting human life as we know it. Blue Marble NASA composite images: 2001 (left), 2002 (right). See also: Sustainable development Sustainability is the capacity to endure. For humans,… …

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  • 123Permaculture — The word permaculture, coined by Australians Bill Mollison and David Holmgren during the 1970s, is a portmanteau of permanent agriculture as well as permanent culture. Through a series of publications, Mollison, Holmgren and their associates… …

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  • 124evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… …

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  • 125Green building — *LEED 2.0 Gold certified *Green Power *Native LandscapingGreen building is the practice of increasing the efficiency with which buildings use resources energy, water, and materials while reducing building impacts on human health and the… …

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  • 126Transformity — The concept of transformity was first introduced by David M. Scienceman in collaboration with the late Howard T. Odum. In 1987 Scienceman proposed that the phrases, energy quality , energy quality factor , and energy transformation ratio , all… …

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  • 127Energy quality — the contrast between different forms of energy, the different trophic levels in ecological systems and the propensity of energy to convert from one form to another. The concept refers to our empirical experience of the characteristics, or qualia …

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  • 128technology, history of — Introduction       the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …

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