Biobased production has been promoted as an alternative to fossil-based production to mitigate climate change. However, emerging concerns over the sustainability of biobased products have shown that tensions can emerge between different objectives and concerns, like emission reduction targets and food security, and that these are dependent on local contexts. Here we present the Open Sustainability-in-Design (OSiD) framework, the aim of which is to integrate a context-sensitive sustainability analysis in the conceptual design of biobased processes. The framework is illustrated, taking as an example the production of sustainable aviation fuel in southeast Brazil. The OSiD framework is a novel concept that brings the perspectives of stakeholders and considerations of the regional context to an ex ante sustainability analysis of biobased production. This work also illustrates a way to integrate methods from different scientific disciplines supporting the analysis of sustainability and the identification of tensions between different sustainability aspects. Making these tensions explicit early in the development of biobased production can make them more responsive to emerging sustainability concerns. Considering the global pressure to reduce carbon emissions, situating sustainability analyses in their socio-technical contexts as presented here can help to explain and improve the impacts of biobased production in the transition away from fossil resources.

Sugarcane expansion in Brazil during the 2000s was partly restricted by several discussions about the sustainability aspects of its cultivation. These discussions were mainly based on surveys that sometimes use highly aggregated data not including local perspectives and particularities, and sometimes used case studies with small samples which, while listening to local perspectives, cannot be considered representative of the whole sector. This work aims at filling this gap by considering both the perceptions of the local community, which add primary data on impact, and a large sample, to increase the research representativeness. To do so, we present the results of 353 interviews, covering 33 municipalities in five states of the Center-South region of Brazil (the largest cultivation area in the country). The results show that the expansion of biofuels has generated conflict mostly related to environmental and social issues, although there is good acceptance of the sugarcane mills in general. Our conclusions point to the importance of including local voices for a deeper understanding of the advantages and limitations of the expansion of biofuels.

Derived from renewable feedstocks, aviation biofuel is generally perceived as inherently sustainable. However, its production involves a wide range of sectors and interacts with different actors in society. It is therefore important to understand and evaluate not only the environmental impacts of that process, but also its socioeconomic effects. At present, empirical studies assessing socioeconomic aspects of aviation biofuel are rare in scientific literature. The aim of this study, therefore, is to assess key effects of aviation biofuel production on employment, GDP, and trade balance. A scenarios-based Input-Output (IO) analysis was used to evaluate these socioeconomic effects, taking Brazilian aviation biofuel production to 2050 as an example. To address the uncertainty of IO analysis, we have proposed a stochastic simulation approach for the technical coefficients in the IO model. Four distinct scenarios were developed. In each, three potential combinations of technologies and feedstocks for producing aviation biofuel were evaluated: sugarcane via alcohol to jet (ATJ), macauba via hydro-processed esters and fatty acids (HEFA), and eucalyptus via Fischer-Tropsch (FT). Among other things, we found that the production of aviation biofuel would create around 12,000–65,000 jobs, while contributing US$200-1100 million to Brazil's GDP under different scenarios with different supply chains. The socioeconomic effects calculated deterministically were generally higher than the stochastic outcomes, which can be explained by factors such as technological learning and economic growth. Aviation biofuel production showed large positive net socioeconomic effects on employment and GDP, although some of the fossil sectors would be negatively affected. Overall, the macauba-HEFA chain (with the highest effects on employment and GDP, and the lowest effects on imports) seemed to be the most favorable of the scenarios studied, despite the relatively high level of uncertainty associated with it.

Social dimension appears to be the least developed of all dimensions of sustainability, not receiving the same attention as environmental or economic dimension. While biomass utilization is considered to have considerable impact on the social well-being of farmers and local communities, a better understanding of its social sustainability is urgently needed. The process for determining social issues, however, is subject to relatively arbitrary decisions, and lacks comprehensive structure. Social issues must be based on those social objectives and indicators that can be empirically measured and analyzed using at the existing level of knowledge and data available. This study, therefore, aims to identify the most important and relevant social and governance issues for the biofuel sector, and also to determine the issues for which reliable data and practical methods may become available and ultimately simplified for understanding by stakeholders. The sugarcane biojet fuel supply chain in Brazil was used as a case study with a research design of two steps: literature review and expert survey. From the literature review, 13 social issues and 5 governance issues were selected for inclusion in the expert survey. The survey results showed that highly relevant issues were generally perceived as highly important. Furthermore, very practical issues were also perceived as very reliable and simple issues. It was concluded that future research should mostly focus on quantitative assessment of human health and safety, labor rights, working conditions, which were perceived very important but less reliable, practical, and simple. Moreover, this study showed that all governance issues are certainly regarded as important for sustainability, but insufficiently recognized in conventional sustainability assessment schemes. The current certification schemes cover only a limited number of social issues and require addressing social issues more broadly. Learning from this study helps decision makers to extend understandings of the social dimension of sustainability.