Social life cycle assessment has matured considerably over the past two decades. Guided by the ISO 14075 standard and the United Nations Environment Programme’s 2020 guidelines, it evaluates social impacts such as human rights, working conditions, cultural heritage and governance across a product’s entire life cycle, from raw material extraction through manufacturing, use and end of life. Stakeholders examined typically include workers, local communities, value chain actors, society at large and children. Yet the method’s DNA comes from environmental life cycle assessment, which was built to trace physical flows and processes. When applied to social questions, this heritage means S-LCA tends to anchor its analysis to the stages where materials physically move, leaving the social drama that surrounds a project, the permit battles, the community anxieties, the historical grievances, largely invisible.

The Finnish team, led by Anni Orola with colleagues Laura Kainiemi, Jarkko Levänen and Ville Uusitalo, turned to controversy mapping to fill that gap. The method is grounded in actor-network theory, a sociological framework developed by Bruno Latour and others that treats both human and non-human entities, from mining companies to protected frog species, as actors capable of shaping socio-technical systems. Controversy mapping, which began as a teaching tool in sociology and has grown into a serious research method, examines and visualizes public disputes by tracing who says what, who aligns with whom, and how arguments evolve over time. The approach proceeds through five stages: moving from statements to debates, from debates to actors, from actors to networks, from networks to broader worldviews, and finally to the politics of how controversies develop across time.

To test the approach, the researchers applied it to Finland’s battery material sector, covering mining, the production of precursor cathode active material, cathode active material and battery cathode production, along with transportation. Finland was a deliberate choice: the country holds reserves of multiple critical battery minerals and is investing heavily in its battery sector, yet despite its comparatively high level of social sustainability, battery material projects there have generated persistent contestation. The team collected data from Finnish-language online news media between November 2023 and July 2024, using Google Alerts with search terms for mining, battery metals and battery chemicals. After excluding unavailable and irrelevant items, they assembled a corpus of 93 articles spanning national and local newspapers, magazines and specialist publications, including interviews, opinion pieces and editorials.

The coding process, carried out iteratively with NVivo software and then organized in Excel, identified 95 actors engaged in the disputes. These ranged from mining and battery manufacturing companies and environmental non-governmental organizations to municipal governments, authorities such as the Finnish Safety and Chemical Agency, residents, landowners, business development companies, researchers and journalists. Notably, the analysis also included non-human actors, among them the Eurasian otter and the moor frog, both strictly protected under the European Union’s Habitats Directive, whose presence shapes the fate of mining projects. Strikingly, none of the 95 actors identified in the Finnish-language media represented the Sami, the indigenous people of northern Finland where several controversial projects are located, a gap the authors attribute to their data sources and a recognized digital bias in the method.

The mapped disputes revealed a rich landscape of arguments. Supporters of the battery industry, mostly companies, emphasized new jobs, economic benefits, risk management plans and the global imperative of the green transition, with some arguing that mining in Finland is more sustainable than in Africa. Opponents, largely NGOs and individual residents writing opinion pieces, pointed to Finland’s history of environmental damage from mining, potential biodiversity loss, sulfate emissions into the Baltic Sea, water contamination, impacts on reindeer herding, fishing, trekking and berry foraging, and what they called green sacrifice zones, where indigenous lands and protected areas are put to industrial use in the name of sustainability. Even battery material trade with Russia became entangled in the debates, with some actors questioning whether such commerce might support aggression against Ukraine, while a company representative defended it as sanction-compliant and even patriotic.

Perhaps the most consequential finding concerns timing. In conventional S-LCA, social impacts are usually assessed starting with raw material extraction. But the study shows that the socially decisive processes happen years or even decades earlier: area reservations that companies announce to claim prospecting rights, prospecting permits, environmental and water management permits, all of which can provoke community reactions, uncertainty and mental strain long before any mine is built. In the case of the AA Sakatti mining project near the Viiankiaapa wetland, public attention moved from the prospecting permit to on-site activism and finally to a visit by Finland’s environmental minister. Because these pre-production social processes can determine whether a project ever gains social acceptance, the authors argue that excluding them from S-LCA omits some of the most significant social impacts of all.

The case studies also demonstrated why stakeholder categories in S-LCA guidelines should be treated as illustrative rather than exhaustive. In the town of Hamina, home to a planned battery material plant by CNGR Finland, the municipality supported the project while residents, NGOs and a local fishing co-operative opposed it. Around the Suhanko Arctic Platinum project, neighboring municipalities split, with Ranua supporting the mine while Tervola and Simo raised concerns, partly because a wastewater pipe would cross Tervola’s territory without economic compensation and Simo was not invited into the environmental permit process. These procedural fairness issues, the researchers contend, are central to social acceptance, which research links to five drivers: the planning process, impacts on nature and residents, social norms, economic impacts and attitudes toward the energy transition.

On this basis, the study proposes that social acceptance should become a distinct impact subcategory within S-LCA, particularly for assessments involving high land use, such as mining, or emission potential, such as battery chemical manufacturing. The subcategory would focus on measuring the procedural justice experienced by local communities, and could be assessed through media coverage capturing both positive and negative viewpoints, an approach already used by sustainability rating platforms like EcoVadis. The authors note an important limitation: such a subcategory only works in countries with freedom of speech and a free press, though Finland ranks among the top five nations in the world press freedom index. Because the subcategory centers on procedural justice rather than overlapping outcomes, the researchers argue it would not result in double counting with existing S-LCA indicators.

The broader message extends beyond batteries. Industrial ecology has long excelled at quantifying environmental impacts, but the social dimension demands methods that can capture context, history and the plurality of actors, including those, like a protected frog or an unconsulted municipality, that fall outside standard stakeholder lists. Controversy mapping, the authors suggest, could serve as a preliminary data collection step before site-specific assessments, or as a complement to existing S-LCA databases, and could even help identify relevant actors before interviews begin. Future work might integrate additional social science perspectives, from institutional analysis to power relations between stakeholders, and test the approach in countries with different levels of institutional trust and press freedom. As the clean energy transition accelerates the global demand for battery materials, the Finnish study offers a timely reminder that the social license to operate is earned not in the factory, but in the long, contested years before ground is ever broken.

Subject of Research: Complementing social life cycle assessment with controversy mapping to assess social acceptance in the battery material industry

Article Title: Impact in a context: complementing social life cycle assessment with controversy mapping

Article References: Orola, A., Kainiemi, L., Levänen, J., & Uusitalo, V. (2026). Impact in a context: complementing social life cycle assessment with controversy mapping. Journal of Industrial Ecology. https://doi.org/10.1007/s44498-026-00153-6

Image Credits: AI Generated

DOI: 10.1007/s44498-026-00153-6

Keywords: social life cycle assessment, controversy mapping, actor-network theory, battery materials, social acceptance, mining, Finland, industrial ecology, life cycle thinking, procedural justice, stakeholder analysis, green transition

Social Life Cycle Assessment, commonly abbreviated as S-LCA, has gained substantial traction over the past decade as a tool for evaluating the social sustainability of products and organizations. Modeled on environmental life cycle assessment, S-LCA seeks to trace social impacts across the entire value chain of a product, from raw material extraction to disposal. International guidelines issued by the United Nations Environment Programme and the Society of Environmental Toxicology and Chemistry in 2009, and updated in 2020, have provided a common skeleton for practitioners. However, researchers have repeatedly noted that the methodology remains comparatively young and still developing, and its practical applicability, especially in developing countries where background data are scarce, has been the subject of ongoing debate. The new study, led by Soumen Ghosh of RV University in Bengaluru together with Unmesh Patnaik and Bino Paul of the Tata Institute of Social Sciences in Mumbai, argues that existing impact assessment approaches often stumble precisely where they are needed most: in data-poor, informal, and socially complex industrial settings.

The core innovation of the study is the Descriptive Subcategory Assessment Method, a hybrid impact assessment approach designed to be more practical and context-sensitive than conventional techniques. DSAM integrates quantitative scoring with qualitative field narratives, pairing numerical performance ratings for each social impact subcategory with rich descriptive accounts gathered directly from affected stakeholders. This dual structure allows the method to capture not only how a subcategory scores but also why it scores that way, preserving the texture of lived experience that purely numerical methods tend to flatten. The approach builds on earlier subcategory assessment methods developed for S-LCA, which organized social impacts into stakeholder categories and subcategories, but adapts them for regions where reliable background databases simply do not exist. In doing so, the authors offer a template that other researchers working in developing economies could replicate across industries far beyond leather.

The empirical focus of the study is the leather industry in Kolkata, a cluster that processes hides and skins into finished leather and leather products and supports thousands of livelihoods across tanning, footwear manufacture, and allied trades. Rather than concentrating solely on factory workers, the research deliberately examines four stakeholder groups that are indirectly affected by the sector: the local community living around production sites, broader society, value chain actors such as suppliers and traders, and customers. This indirect-stakeholder lens is a distinctive feature of the work. Much of the existing S-LCA literature privileges direct workers, whose conditions are comparatively easier to observe and quantify. By widening the aperture, the Kolkata study illuminates social impacts that ripple outward from the factory gate into neighborhoods, markets, and households that never set foot inside a tannery.

The findings paint a nuanced and, in places, uncomfortable picture. The study reveals notable gaps in several subcategories under the Local Community and Society stakeholder themes, gaps that the authors describe as frequently violated, either unintentionally or deliberately. These shortfalls point to pressures that industrial activity imposes on surrounding populations, from strains on shared infrastructure and environmental amenities to broader societal obligations that the industry has not fully met. The qualitative narratives collected in the field give these quantitative gaps human texture, documenting how residents and community members experience the presence of the leather sector in their daily lives. The authors emphasize that such violations are not always the product of malice; in many cases they reflect structural constraints, weak enforcement, and the sheer difficulty of coordinating social responsibility across a fragmented value chain.

Not every result is negative, and some of the positive findings are genuinely surprising. Although customers are not directly linked to the producers in any contractual or organizational sense, the subcategories associated with this stakeholder group show relatively strong performance. This suggests that the reputational and relational dimensions of the leather value chain, the ways in which end consumers relate to the products they buy, are functioning better than might be expected in an industry often associated with informality and opacity. The outcomes for value chain actors are also largely positive, indicating that suppliers, traders, and other intermediaries who keep leather moving from rawhide to finished goods report comparatively favorable social conditions. The contrast between these bright spots and the deficits recorded for local communities and society underscores a central lesson of the study: social sustainability performance is not uniform across a value chain, and aggregate assessments can mask serious localized harms.

Methodologically, the study demonstrates how mixed methods can strengthen social impact assessment. The quantitative component assigns scores to subcategories, enabling comparison across stakeholder groups and identification of hotspots, while the qualitative component draws on field narratives to interpret, contextualize, and sometimes challenge those scores. This combination matters because social phenomena resist the kind of standardized measurement that works for carbon emissions or water use. Indicators in S-LCA have long been criticized for lacking theoretical grounding and empirical validation, and the authors position DSAM as a response to that critique, grounding each subcategory assessment in direct evidence from the people it describes. The approach also speaks to a broader methodological conversation in the field, where recent reviews of S-LCA methods since the 2020 UNEP guidelines have highlighted lingering challenges in the search for standardization.

The practical implications extend well beyond academia. The authors underscore the need for targeted and effective interventions to promote a more socially sustainable value chain in the leather industry. Because the deficits are concentrated in the Local Community and Society themes, policy responses should focus on the interfaces between industry and its surroundings, rather than exclusively on factory-floor labor conditions. The study arrives at a moment when Indian leather policy is actively evolving, with state-level initiatives such as the Tamil Nadu Footwear and Leather Products Policy of 2022 signaling growing governmental ambition for the sector, and environmental impact assessment processes for complexes like the Calcutta Leather Complex drawing public scrutiny. Embedding social criteria alongside environmental ones in such policy frameworks, the research suggests, would give regulators and industry leaders a more complete picture of sustainability performance.

For the global S-LCA community, the Kolkata case offers something arguably more valuable than a set of findings: a demonstration that rigorous social assessment is feasible even where background data are limited. The Descriptive Subcategory Assessment Method shows that careful fieldwork, transparent scoring, and honest narrative reporting can substitute, at least in part, for the comprehensive databases that practitioners in wealthy countries take for granted. As demand grows for social sustainability metrics in global trade, from footwear brands to automotive suppliers, tools like DSAM could help ensure that the social costs of production in developing economies are measured, disclosed, and ultimately addressed. The leather workers, residents, and communities of Kolkata provided the evidence; the method they helped validate may soon travel far beyond the tanneries of Bengal.

Subject of Research: A novel Descriptive Subcategory Assessment Method for social life cycle assessment applied to the leather industry in Kolkata, India

Article Title: Descriptive subcategory assessment method (DSAM) for social life cycle assessment: a case study of leather industry in Kolkata, India

Article References: Ghosh, S., Patnaik, U., & Paul, B. (2026). Descriptive subcategory assessment method (DSAM) for social life cycle assessment: a case study of leather industry in Kolkata, India. Journal of Industrial Ecology. https://doi.org/10.1007/s44498-026-00173-2

Image Credits: AI Generated

DOI: 10.1007/s44498-026-00173-2

Keywords: social life cycle assessment, S-LCA, DSAM, leather industry, Kolkata, India, social sustainability, local community, value chain actors, stakeholder assessment, sustainability metrics, industrial ecology