Abstract
Economic development over recent centuries can be explained by the presence of three factors of production: capital, labor, and the use of exergy (available energy) from fossil-based fuels. The way these factors combine — that is, the system underlying our consumption patterns — runs counter to the dynamics of natural ecosystems and, therefore, to the long-term sustainability of the species that depend on these resources. This article proposes a different way of evaluating resources for decision-making from the perspective of exergetic analysis, which allows all physical manifestations to be expressed in energy units independent of their economic value, enabling sustainable management of renewable resources and assessment of the strategies best suited to the ecological conditions of our environment.
References
Ayres, R. U, (1999). The Second Law, the Fourth: Law, Recycling and
Limits to Growth. Ecological Economics, 29, 473-483. Ayres, R. U. (2004). On the Life Cycle Metaphor: Where Ecology and
Economics Diverge. Ecological Economics, 48, 425-438. Ayres, R. U.; Turton, H.; Casten, T. (2007).
Energy efficiency, sustainability and economic growth. Energy, 32, 634-648. Campbell, C. and Laherrére, J. H. (1998, March). The End of Cheap Oil. Scientific American, 278(3), 7883.
Escobar M., John F. (2005). Identificación y evaluación del Capital
Natural Crítico en proyectos de explotación de hidrocarburos a partir de la plataforma SIG. Tesis de grado. Maestría en Medio Ambiente y Desarrollo. Universidad Nacional de Colombia. Medellín. Harris, M. (1994). Nuestra Especie. Madrid: — Alianza Editorial. (Edición original en inglés: Our Kind: Who We Are, Where We Came' From, Where We Are Going [1990)).
Murugesan, A.; Umarani, C.; Subramanian, R.; Nedunchezhian, N. (2008).
Biodiesel as an Alternative Fuel for Diesel Engines A Review. Renewable and sustainable energy reviews, XXX. Rosen, M. A. (2002a). Assessing Energy
Technologies and Environmental CONCEPTUALIZACIÓN Impacts with the Principles of Thermodynamics. Applied Energy, 72(1), 427-441. Rosen, M. A. (2002b). Energy Crisis or Exergy Crisis? Exergy, an International Journal, 2(3), 125127.
Rosen, M. A. and Dincer, 1. (2003).
Exergy-Cost-Energy-Mass Analysis of Thermal Systems and Processes. Energy Conversion & Management, 44, 1633-1651. R; Rogner, H.; Gregory, K. (2003). Carbon Emission and
Mitigation Cost Comparisons between Fossil Fuel, Nuclear and Renewable Energy Resources for Electricity Generation. Energy Policy, 31, 1315-1326. United Nations, Department of Economic and Social Affairs (2006). Trends in Sustainable Development.
New York. Recuperado de http:// www.un.org/esa/sustdev/ publications/trends2006/ trends_rpt2006.paf.
Valero, A. y Naredo, J. (1999). Desarrollo
Sims, Económico y Deterioro Ecológico. Madrid: Ed. Fundación Argentaria. Velásquez, H. (2009). Avaliacáo
Exergética e ExergoAmbiental da Producáo de Biocombustíveis. Tese Doutorado. Escola Politécnica da Universidade de Sáo Paulo. Departamento de Engenharia Mecánica, Sáo Paulo. Wall, G. (1977). Exergy - A Useful
Concept within Resource Accounting. Report no. 7742. Institute of Theoretical Physics, Chalmers University of Technology and University of Góteborg, Sweden. Recuperado de http://exergy.se/goran/ thesis/paper1 /paperl.html. Wall, G. and Gong, M. (2001). On Exergy and Sustainable Development. Part 1: Conditions and Concepts. Exergy, an International Journal, 1(3), 128-145.

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Copyright (c) 2012 Karem Johanna Castro Peláez; Carlos Andrés Uribe Trujillo
