Journal ArticleDOI
Monitoring patterns of sustainability in natural and man-made ecosystems
Sergio Ulgiati,Mark T. Brown +1 more
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In this paper, a systemic analysis of the relationships among components of a system's web, the flows of energy and other resources converging to produce the output (biomass, biodiversity, assets, industrial products) can be evaluated on a common basis, i.e. the content of solar equivalent energy.About:
This article is published in Ecological Modelling.The article was published on 1998-05-01. It has received 366 citations till now. The article focuses on the topics: Emergy & Transformity.read more
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Carbon emission from farm operations
TL;DR: The available information on energy use in farm operations, and its conversion into carbon equivalent (CE) is a synthesis of the available information and shows that an output/input ratio, expressed either as gross or net output of C, must be >1 and has an increasing trend over time.
Journal ArticleDOI
Strengths and weaknesses of common sustainability indices for multidimensional systems
TL;DR: Several improvements would increase the utility of sustainability indices for policy decisions, particularly the identification of biases introduced by the index methodology and data inclusion.
Journal ArticleDOI
A critical review of reductionist approaches for assessing the progress towards sustainability
TL;DR: In this article, the authors provide a comprehensive review of different sustainability evaluation tools (from a reductionist perspective) as well as the feasibility of incorporating them within a sustainability assessment framework, including monetary tools, biophysical models and sustainability indicators/composite indices.
Journal ArticleDOI
Quantifying the environmental support for dilution and abatement of process emissions The case of electricity production
Sergio Ulgiati,Mark T. Brown +1 more
TL;DR: In this article, the authors compared strategies to deal with thermal and chemical emissions from electricity production processes and suggested two support areas, one using local constraints, and a second using global constraints.
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Sustainability of nations by indices: Comparative study between environmental sustainability index, ecological footprint and the emergy performance indices
TL;DR: In this article, a comparison between the two most used environmental sustainability indices of nations: "ecological footprint" and "environmental sustainability index" with two emergy ratios (renewability and emergy sustainability index).
References
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Book
Environmental Accounting: Emergy and Environmental Decision Making
TL;DR: In this paper, the authors present an EMERGY Evaluation Procedure and Evaluation Procedure for Energy Hierarchy and Energy Hierarchical Energy Hierology, which is based on EMERGE Algebra.
Journal ArticleDOI
Self-Organization, Transformity, and Information
TL;DR: In this paper, the authors define the transformity (energy of one type required per unit of another) as an energy scaling factor for the hierarchies of the universe including information.
Book
Food, energy, and society
TL;DR: Pimentel and Pimentel as discussed by the authors discussed the impact of energy use on the environment and the potential of solar energy in agricultural systems, including fish and aquacultural production.
Journal ArticleDOI
Food production and the energy crisis.
David Pimentel,Lawrence E. Hurd,A. C. Bellotti,M. J. Forster,I. N. Oka,Owen D. V. Sholes,R. J. Whitman +6 more
TL;DR: This analysis is but a preliminary investigation of a significant agricultural problem that deserves careful attention and greater study before the energy situation becomes more critical.
Journal ArticleDOI
Embodied energy analysis and EMERGY analysis: a comparative view
Mark T. Brown,R.A Herendeen +1 more
TL;DR: Parallel quantitative analyses of several simple model systems are performed and for the first time in the open literature EMERGY accounting procedures are given in detail.
Related Papers (5)
Emergy-based indices and ratios to evaluate sustainability: monitoring economies and technology toward environmentally sound innovation
Mark T. Brown,Sergio Ulgiati +1 more