The Planetary Boundaries (PBs) framework defines a safe operating space (SOS) for human activities. Translating this global SOS to the product level is critical for applying the PBs concept in practice, particularly within the framework of Absolute Environmental Sustainability Assessment (AESA). However, the practical implementation of SOS allocation principles is challenged by significant uncertainties. This paper presents a set of SOS allocation principles applied to a case study in the Australian context. The findings highlight the importance of selecting an appropriate combination of SOS allocation principles—from the planet to the product level—to reduce uncertainty and enhance assessment reliability.
Speiser et al. (Thu,) studied this question.