A GHG reduction obligation for sustainable aviation fuels (SAF) in the EU and in Germany

Despite various legal drivers already in place, a large-scale use of sustainable aviation fuels (SAF) is still missing. Thus, bringing SAF for GHG reduction reasons into the day-to-day business more effective market injection mechanisms are needed. In this context, direct and indirect effects of a greenhouse gas (GHG) reduction obligation in the EU and in Germany are analysed, considering an obligation level of 2% in 2023 increasing stepwise to 10% by 2030 following the goals derived from transport-related RED II targets. For such GHG reduction obligations referred to the entire EU 27 and the entire German aviation fuel uplifts, obligation induced SAF demands possibly exceed future SAF production quantities by a factor of about two without effective capacity expansion exceeding the published expansion plans. The considered SAF options lead to an aviation fuel price increases of 5–45% referring to a conventional aviation fuel price of 550 €/t. Aviation related EU ETS and German aviation tax revenues are mostly insufficient to significantly cover obligation-induced SAF costs or additional fuel costs. Fostering a broad spectrum of SAF technologies will thus require obligation related sub-mechanisms, due to (significantly) different SAF compliance costs. Thereby, sub-mandates represent the most effective approach. In terms of obligation avoidance measures, tankering – in contrast to three re-routing options considered – is likely to be economically feasible for airlines and requires appropriate countermeasures.     

Equifinal causes of sustainable clothing purchase behavior: An fsQCA analysis among generation Y

Purchase intention of sustainable clothing is investigated using fuzzy-set qualitative comparative analysis to identify equifinal causal paths. A sample of 81 German students was drawn employing a two-stage cluster sampling approach. Environmental concerns appear to be a necessary condition for purchase intention. Segmentation according to gender revealed that for females, a pure focus on environmental concerns is sufficient for purchase intention, while the same configuration prevents this intention for males. Females emphasize price value considerations and do not wish for high visibility of their sustainable clothing, while males indicate the opposite. Further, a prestige-driven causal combination was found for the male segment, stressing social influence and visibility. The purchase intention of sustainable clothing yields interactions among causal conditions, corroborating the need for methodological diversity to gain a better understanding of the phenomenon.     

Does Green Public Procurement lead to Life Cycle Costing (LCC) adoption?

Life Cycle Costing (LCC) is rarely used in public procurement and public institutions have yet to fully understand its potential value for sustainable procurement. The new European Directive on Public Procurement is, however, designed to position LCC as central to sustainable sourcing. Although previous studies have identified positive correlations between Green Public Procurement Policies (GPP) and LCC, it is still unclear how public institutions can further adopt LCC practices by leveraging their experience of green sourcing. In this study an organizational learning theoretical perspective is taken to investigate the circumstances under which public administrations’ experience of GPP – considered as a way of integrating the dimension of environmental sustainability into the sourcing process – stimulates their LCC learning and capabilities – considered as a way to include the sustainability economic dimension. The goal is to understand if the adoption of GPP can stimulate the internalisation of LCC in public tenders. A multinomial logistic regression was conducted using a sample of 120 public administrations located in different countries. The results show that experience of GPP stimulates the internalisation of LCC at a public level, but only under specific conditions. The study contributes to the Sustainable Supply Management literature, being one of the first studies in the field adopting an organizational learning theoretical lens to review the role of experience as significant opportunity to develop capabilities. It also contributes to the organizational learning theory, by confirming that experience can aid learning but only in specific environmental contexts.     

Degrowing tourism: rethinking tourism

Abstract

Concerns with growth have steadily advanced since the Limits to Growth report due particularly to human impacts on the natural environment. Since that time, neoliberal capitalism has become increasingly reliant on growth exacerbating these problems. The destructive outcomes of these strategies has led to a growing interest in degrowth. Analysts are examining how we can create economies that eschew a growth imperative while still supporting human thriving. Tourism as a key facet of capitalism is implicated in these issues and recent concerns with “overtourism” are only one symptom of the problem. This article presents a conceptual consideration of issues of degrowth in tourism. It examines current tensions in international mobility and argues just and sustainable degrowth will require greater attention to equity. This analysis suggests that essential to such an agenda is redefining tourism to focus on the rights of local communities and a rebuilding of the social capacities of tourism. This article argues for the redefinition of tourism in order to place the rights of local communities above the rights of tourists for holidays and the rights of tourism corporates to make profits.     

Integrating Aspects of Ecosystem Dimensions into Sorghum and Wheat Production Areas in Kinmen,Taiwan

Balancing conservation and development with ecosystem services is a popular topic for the sustainable development of agricultural land today. This study establishes an evaluation framework to explore the heterogeneous preferences of tourists and residents for the ecosystem functions of agricultural land in Kinmen, Taiwan. The results showed that respondents preferred to transform the current farming type into sustainable agriculture, increase species habitats, plan wheat and sorghum landscape areas, and combine ecotourism with local cultural activities. Tourists had a higher marginal willingness to pay for farmland conservation than residents. People who supported the conservation program of agricultural land in sorghum and wheat production areas tended to 1) be female, 2) be tourists, 3) have higher education, and 4) have higher monthly income. The results suggest that policymakers must improve ecosystem functions with agricultural ecosystem function support funds, consistent with the guaranteed-price purchase policy in the Kinmen sorghum and wheat areas, for sustainable development.     

Perceptions of public land governance from two Canadian provinces: How is the social agenda being met through sustainable forest management?

This article presents a comparative assessment of current spaces for public involvement in Crown (public) land management in the Canadian provinces of New Brunswick and Nova Scotia. More specifically, it addresses the barriers to public participation by examining the agency-client relationship – specifically, through the theoretical lens of capture – as an impediment to the inclusion of values that are outside the traditional, technocratic management realm of public forest management. Without public input, the public’s needs, values, and desires are not articulated and the social side of sustainable forest management is likely to be neglected. Low levels of trust in public land management agencies in New Brunswick and Nova Scotia, coupled with minimal space for public involvement, have created the perception of a policy network that is dominated by industry and/or government and provides minimal space for other interests. The primary research method is an online survey informed by forty-two interviews. The survey was administered to 89 key forestry stakeholders in New Brunswick and Nova Scotia. Participation observation and a document analysis are utilized to complement the survey. This research finds that (1) although survey participants come from diverse affiliations and two provinces with different forest policy and unique approaches to public participation, there is essential consensus of the need for an improvement of public involvement processes for public land; (2) trust in the forest industry and the Department of Natural Resources (DNR) is extremely low in both provinces. Even with recent participatory efforts in Nova Scotia, the trust level is lower than in the neighboring province of New Brunswick. Some participants connect this distrust to privileged access for certain interest groups and a closed policy network; (3) barriers to participatory processes differ between provinces, especially a fear of retribution, which is specific to New Brunswick; and (4) key stakeholders identify barriers to engagement that they perceive to be different for themselves and the general public.     

Sustainable valuation of land for development. Adding value with urban planning progress. A Spanish case study

This article presents a valuation model of land for development in a sustainable way, based on the design and execution of urban planning. Using this method, one can obtain, at any given point in time, the added value progress of the urbanization process. For each year during the plan’s execution, the value of land has been estimated. The free cash-flow method was applied in order to estimate the land valuation of any given year. From the estimate for each of those years, and using regression analysis, the most suited value added function was obtained, for the increase of value across time up to the point of finalized, fully urbanized land. The results show that this is an exponential growth function, such that during the initial years the progress of valuation is slow, but it accentuates during final years of execution as the land becomes urbanized, at which point the land achieves maximum value.     

How do crazy rich Asians perceive sustainable luxury? Investigating the determinants of consumers’ willingness to pay a premium price

Motivated by the increasing media coverage of environmental disasters and growing evidence of humans’ detrimental impacts on the natural environment, the key aim of this study was to examine consumer interest in buying sustainable luxury products. Rooted in the Value-Belief-Norm (VBN) theory, a research framework incorporating pro-environmental self-identity (PSI), consumer pro-environmental values (CPV), engagement, and willingness to pay a premium price (WPP) was proposed. To better understand the sustainable behavior of consumers, this study modelled myopia as a personality trait that moderates the aforementioned relationships. Partial least squares path modelling (PLSPM) was employed to analyze data collected from 296 Chinese consumers who had purchased luxury fashion products. The results highlighted the influential role of CPV in shaping both consumer engagement and WPP, surpassing the impact of PSI. Also, the study established the positive effect of engagement on WPP and confirmed its mediating role in the relationship between CPV and WPP. The incorporation of myopia as a moderator further enhanced the explanatory power of the VBN theory in understanding sustainable consumption evaluations. The findings revealed that the positive links between PSI, CPV, engagement, and WPP were particularly pronounced among non-myopic consumers, suggesting that a clear vision of long-term consequences strengthens the connections between these constructs. These findings offer valuable insights to both academics and practitioners, particularly in the realm of luxury fashion brands within Chinese culture. They provide a foundation for designing targeted marketing communication strategies that effectively leverage and cultivate consumers' pro-environmental self-identities and values. By aligning brand messaging with these values, luxury fashion brands can enhance consumer engagement and foster a willingness to invest in sustainable products. Ultimately, this study contributes to the growing body of knowledge on sustainable consumption and offers practical implications for promoting environmentally responsible choices in the luxury fashion industry.     

The institutional fit of peatland governance in Indonesia

The Government of Indonesia has published a number of policies and regulations to better manage its vast amount of tropical peatland, yet the degradation and conversion of Indonesian peatlands still continues. This paper analyses the institutional fit between Indonesian regulations related to peatland use and the characteristics of peatland users. We reviewed Indonesian legal policies and regulations on peatland use and management and conducted questionnaires and interviews with peatland users and policy makers in order to understand their practices and incentives in relation to the implementation of the four main peatland regulations. We focus on two provinces with large peatland areas: Jambi and Central Kalimantan. Using a framework for assessing the degrees of fit between the rule creators and adopters for peatland management, this paper shows that the degree of technical, political, and cultural fit of Indonesian peatland regulations can be classified as low to moderate. The paper shows that many peatland users are insufficiently aware of peatland regulations. The lack of socialisation on the contents of the regulations and the alternatives for peatland best practices, together with the lack of field monitoring and law enforcement are the important causes of non-compliance with peatland regulations. However, there are ongoing processes of fitting visible that are largely driven by the local government and NGOs. We discuss the degrees of fit and present some lessons for increasing the degree of fit for peatland regulations.