Determining sustainability using the Environmental Performance Index and Human Development Index - An alternative approach to the Environmental Human Index through a holistic quantitative dynamic framework

The Environmental Human Index (EHI) was recently proposed and demonstrated as a new sustainability assessment tool which uses data from the Environmental Performance Index (EPI) and the Human Development Index (HDI). However, the EHI has potential conceptual and operational issues in respect to its consistency with established concepts and principles of the coupled environment-human system and sustainability. Specifically, the thresholds of sustainability the EHI uses, the bias towards the anthroposphere, and the absence of unsustainability. These issues raise potential questions concerning the EHI's value and approach adopted to utilise the EPI and HDI data to determine potential or actual sustainability outcomes. Therefore, to demonstrate how the EPI and HDI can be used to determine sustainability outcomes, the Sustainability Dynamics Framework (SDF) is applied in respect to the case study of the United Kingdom 1995-2020. The results indicated strong sustainability occurring throughout the specified period, within a S-value range of [+0.503 ≤ S(t) ≤ +0.682]. The Pearson correlation analysis showed a significant negative relationship between E and HNI-values and between HNI and S-values, and a significant positive relationship between E and S-values. The Fourier analysis indicated a three-phase change in the nature of the environment-human system dynamics over the 1995-2020 period. The SDF application to the EPI and HDI data has shown the importance of using a consistent holistic conceptual and operational framework to determine and evaluate sustainability outcomes.

Economic growth, social inclusion, and environmental protection: assessing the existence of green growth in Pakistan

The Fifth Ministerial Conference on Environment and Development in Asia and the Pacific (MCED-5) provided a regional implementation plan to pursue economic development in Asia-Pacific. Achieving environmentally sustainable economic growth or green growth is considered necessary by the ministerial declaration of the conference. The ministerial declaration defines green growth as an approach to sustaining economic growth and employment creation, a prerequisite for effective poverty reduction while coping with natural resource constraints and climate change. Based on the importance of green growth, the study seeks to investigate the progress towards sustainable economic development in Pakistan from 1990 to 2019. The study employs structural equation modeling (SEM) to determine the direct and indirect effects of the variables of the green growth model adopted in the MCED-5. The results of the study indicate that an increase in the net national income of the country leads to increased natural resource depletion. The declining stock of natural capital points towards the difficulty in fulfilling biocapacity sustainability in Pakistan while achieving social progress and declining carbon intensity in the quest for sustainable development. Based on the analysis, it can be claimed that the negative impact of increasing inclusive wealth on natural capital makes Pakistan in environmental terms a weakly sustainable nation. Thus, the conclusion is that Pakistan is following a path of weak sustainability. As a result, there is a need to shift the country's sustainable economic development from weak sustainability to strong sustainability if the increasing natural resource depletion is to be restrained.

Spatio-temporal evolution of ecological environment quality in China from a concept of strong sustainability

Based on the concept of strong sustainability, this paper builds a dynamic evaluation system on ecological environment quality from the concepts of ecological environment pollution and ecological environment management and puts forward the evaluation indexes including ecological environment pollution index (EPI), ecological environment management index (EMI), and ecological environment quality index (EQI). On this basis, kernel density estimation, Markov chain, Theil index, and dynamic SDM are used to reveal and explain the spatio-temporal evolution of ecological environment quality in China. The results were as follows. Overall, the EPI is decreasing while EMI and EQI are on the rise. In the long run, there is low possibility of upward and cross-level transition for EPI and EQI. The differences of EPI, EMI, and EQI are mainly caused by the regional differences. The regional differences have been reflected in the value of EPI, EMI, and EQI. It has been shown that the internal regional differences are continuously narrowing and the inter-regional differences are expanding. The convergence speeds of EPI, EMI, and EQI are 13.77%, 23.80%, and 9.69%, respectively. In the regional convergence test, different regions have shown different convergence speeds.

Towards transparent valorization of food surplus, waste and loss: Clarifying definitions, food waste hierarchy, and role in the circular economy

In this study, the key gaps of food waste prevention have been addressed in the context of the emerging circular economy. First, current terminology related to food waste was reviewed and clarified, in particular, the terms food surplus, waste and losses. This work highlights why the clarity of these definitions is crucial for the sustainability of future food waste management systems, especially in the context of circular economy. Through a simple matrix, definitions are linked to the concepts of edibility and possibility of avoidance, leading to six distinct categories of food waste: i) edible, ii) naturally inedible (pits), iii) industrial residue, iv) inedible due to natural causes (pests), v) inedible due to ineffective management and vi) not accounted for. Category I encompasses surplus food only; category II-V food waste and category VI food losses. Based on this, an updated pyramid for food waste hierarchy is proposed, distinguishing surplus food and a new category for material recycling, in order to reflect the future food waste biorefineries in the circular bioeconomy. Nutrient and energy recovery are two separate categories and the terms recovery and recycling are clarified. Finally, a circular economy framework is presented for food surplus and waste, considering closing the loop throughout the whole food supply chain, in connection with the concept of strong and weak sustainability. This is presented along with a review of key EU policies related to food waste and examples of initiatives from the Member States.

Environmental sustainability assessment from planetary boundaries perspective - A case study of an organic sheep farm in Finland

Food production processes may have both positive and negative environmental sustainability impacts. This makes decision-making challenging in the transition towards more sustainable food production systems. In this paper, a new method for presenting environmental impacts in the context of planetary boundaries is demonstrated. This will help food and agricultural producers compare the magnitudes of various environmental impacts. The environmental sustainability impacts of an organic sheep farm in the boreal climate zone in Finland are studied herein first using a life cycle assessment method. The results are then normalized and presented in a planetary boundary framework to ascertain the extent of different environmental impacts. The results show that in the planetary boundary context, there are positive impacts of sheep grazing on biosphere integrity (genetic diversity) and biogeochemical flows and negative impacts on climate change, land use or freshwater use. Magnitudes of the impacts greatly dependent on the assumptions made especially regarding biosphere integrity impacts. In the future, it is crucial that decision-making be based on the evaluation of various environmental impacts and that the focus be more on complex sustainability thinking, rather than on one single environmental impact. This research demonstrates that results from a life cycle assessment can be modified and presented in a planetary boundaries context. A planetary boundary framework approach similar to that proposed herein could be further used to identify different environmental sustainability perspectives and to help one better recognize the multifunctional aspects of the ecosystem processes.