Concretely, significant aspects were considered, with an importance level magnitude x critical nature equal or higher than I5. That is to say, in the stage "Extraction and Elaboration of products" the consumption of energy and raw materials was considered. In the stage "Works Execution" greenhouse gas into the atmosphere was accounted. Finally, in the stage "Operation and Maintenance" the energy consumption and greenhouse gas into the atmosphere were considered.
Concretamente, se consideraron signiicativos los aspectos con un nivel de signiicancia Magnitud x Criticidad de valor igual o mayor a 15, es decir, en la fase de "Extracción y Fabricación de productos" los consumos de energía y materias primas, en la fase de "Ejecución de obra" las emisiones a la atmosfera y por último en la fase de "Uso y mantenimiento" el consumo de energía y las emisiones de gases a la atmosfera.