Political Bias and Methodological Failure in Assessing Environmental Impacts of Development Projects: Comparative Analysis of the High Aswan Dam and Calaca Thermal Power Plant Development Projects

Environmental impact assessment (EIA) by various sectors for development activities still needs operational guidelines to avoid failures. The High Aswan Dam in Egypt and the Calaca Thermal Power Plant in the Philippines were examined to delineate lessons. Three sorts of methodological failures were identified in these cases, although they differ in many aspects. They are (1) preoccupation with the previous case, (2) oversimplified assumptions about cause and effect, and (3) lack of a holistic viewpoint. These cases were also influenced by political biases, which led to inappropriate assessment methodologies and, subsequently, to erroneous conclusions. Care should be taken to avoid these universal failures in carrying out an assessment.