This paper will, through a theoretical discussion of efficiency and effectiveness, present a model for a recovery system. The plastic packaging recovery system in Norway is described, and despite the lack of empirical data, ...

An important part of the concept of Industrial ecology aims at understanding and improving the metabolic pathways of materials in society. Extended producer responsibility is one of the recent, and indeed important, ...

Extruded aluminium sections have many features that make them suitable for use in environment-friendly products. Still there are much to be done to reduce the variability of section properties and to optimize the processing ...

University and college education of engineers and technicians face a sever dilemma. On the one hand is there a strong need and demand from society to enforce interdisciplinarity and systems thinking to master the intricate ...