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Title: A complex network approach to environmental impact assessment
Authors: Martinez Bernal, Liven Fernando
Toro, Javier
León González, Carmelo Javier 
UNESCO Clasification: 590208 Política del medio ambiente
Keywords: Medio ambiente
Política medioambiental
Issue Date: 2019
Journal: Impact Assessment and Project Appraisal 
Abstract: This article proposes a complex network methodology for the process of Environmental Impact Assessment (EIA) that limits subjectivity and reduces uncertainty by incorporating elements of complex systems theory in the stages of identification and assessment of the significance of environmental impacts. The proposed methodology reduces the sources of uncertainty, which emerge from the use of simplified models that analyse the environment-activity interactions in a unidirectional fashion. This proposal determines the significance of environmental impacts through multidirectional or complex causal relationships. Likewise, it limits the subjectivity of the evaluator by using these causality relationships instead of criteria based on the impacts' attributes. The application of the proposed methodology demonstrates the advantages of (i) prioritizing the impacts according to their capacity to interact with other impacts, and (ii) the possibility to redirect the environmental management plans towards the prevention of impacts of higher complexity and to reduce the importance of derived impacts. The application of the proposed methodology reveals that the percentage of irrelevant and moderate impacts is reduced, whereas the percentage of severe and critical impacts increase, in comparison to the conventional methodologies.
ISSN: 1461-5517
DOI: 10.1080/14615517.2018.1552442
Source: Impact Assessment And Project Appraisal[ISSN 1461-5517],v. 37 (5), p. 407-420
Appears in Collections:Artículos
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