Happiness and Green Habits Don’t Always Go Hand in Hand, French Survey Finds

Does living a greener life make you happier? For years, researchers have reported a positive association between pro-environmental behaviour and subjective well-being, fuelling the appealing idea that sustainability and happiness reinforce each other. A new study from France complicates that comfortable narrative. Analysing a large, nationally representative survey of 3,000 French residents, Vanessa Kuentz and Christophe Boschet of INRAE show that the relationship between how people feel about their lives and how they behave toward the environment is far messier than a single correlation can capture. Their findings, published in Social Indicators Research, suggest that the population splits into distinct profiles in which well-being and green behaviour sometimes evolve together, sometimes have nothing to do with each other, and sometimes even pull in opposite directions.

The research team set out to test a deceptively simple question: at the level of the individual, can personal well-being and pro-environmental behaviour be pursued in tandem? Both concepts are multidimensional. Subjective well-being, as the authors frame it, is not a single happiness score but a bundle of perceptions about one’s living conditions, spanning material circumstances, health, social relationships, and satisfaction with different life domains. Pro-environmental behaviour, likewise, covers a heterogeneous set of everyday practices, from waste sorting and reduced consumption to mobility choices and household energy habits. Treating either construct as a monolith, the authors argue, obscures the diversity of real lives.

To capture that diversity, the researchers built a unique dataset in October 2023, surveying 3,000 residents selected to be representative of the French population. The questionnaire tracked both environmental engagement and personal well-being, measuring each through multiple dimensions rather than summary indices. Respondents were recruited through a certified panel survey firm specialising in internationally recognised polling, with data collection compliant with the General Data Protection Regulation. Participants gave informed consent before completing the online questionnaire, and the dataset provided to the researchers was fully anonymised, containing no information that could identify individuals.

The methodological heart of the paper is a multivariate exploratory approach based on ClustGeo, an R package for hierarchical clustering that the authors had previously helped develop. What makes ClustGeo distinctive is its ability to vary the weight assigned to each set of variables while maintaining constant inertia, the statistical measure of dispersion that clustering algorithms seek to partition. In practical terms, this allowed the team to search for classes of individuals while controlling how strongly the well-being dimensions versus the behavioural dimensions shaped the resulting groups. Because perceived living conditions are likely to be influenced by population-level factors such as demographic, economic, and sanitary conditions, the researchers conducted a simulation that varied the respective weight of each set of dimensions and observed how the classification responded.

The central finding supports the hypothesis that heterogeneity among individuals drives the complexity of the association between subjective well-being and pro-environmental behaviour. Rather than one uniform relationship, the analysis revealed three distinct patterns linking the two domains: co-evolution, in which higher well-being and stronger environmental engagement appear together; disconnection, in which the two vary independently; and opposition, in which they diverge. In other words, some people are both satisfied with their lives and green in their habits, some are green without any apparent well-being dividend, and others occupy configurations where the two dimensions conflict. The authors’ pointed phrase, one size does not fit all, is not rhetorical flourish but a literal description of their statistical results.

The simulation added a further layer of nuance. When the researchers increased the weighting of subjective well-being relative to environmental behaviour, the association patterns reconfigured, and the way individual profiles were structured across the population shifted as well. This sensitivity analysis matters because it demonstrates that the apparent relationship between happiness and green behaviour is not a fixed property of the population but partly an artefact of how much analytical emphasis each dimension receives. The authors discuss the specific results for a higher weighting of subjective well-being, underscoring that perceived living conditions are themselves shaped by broader demographic, economic, and health contexts that vary across the population.

Why does this matter beyond the seminar room? A substantial body of prior research, including meta-analytic work, has reported a robust positive association between individuals’ pro-environmental behaviours and their subjective well-being, and this evidence has fed into policy arguments that green transitions need not cost personal happiness. The French study does not overturn that literature, but it reframes it. If the population contains co-evolving, disconnected, and opposed profiles, then an average positive correlation may conceal large groups for whom the relationship simply does not hold. Interventions designed on the assumption that greener behaviour automatically enhances well-being could therefore miss their mark for a substantial share of the public, or even backfire for those whose life circumstances place them in the opposition pattern.

The study also speaks to a long-running methodological debate. Previous work has questioned how strong the evidence for a well-being and behaviour link really is, noting mismatches between self-reported and observed pro-environmental behaviour and the influence of green self-image on survey responses. By refusing to collapse either construct into a single index, Kuentz and Boschet sidestep some of the aggregation problems that plague simpler analyses. Their clustering approach treats the multidimensionality of both well-being and behaviour as the object of study rather than a nuisance, revealing structure that correlation coefficients average away. The trade-off is that the resulting classes are exploratory rather than confirmatory, and the numbering of classes is an arbitrary output of the software rather than a ranking of importance.

Contextual factors in France make the findings particularly timely. National environmental assessments and international surveys document mounting concern about climate change among the French public, alongside persistent tensions around mobility habits and the cost of living. Perceived living conditions, the study reminds us, are embedded in these wider conditions. A household facing economic strain may experience well-being and environmental engagement very differently from a comfortable urban professional, even if both report similar attitudes toward the environment. The simulation results suggest that as demographic, economic, and sanitary conditions shift, the very architecture of the well-being and behaviour relationship may reorganise, meaning that snapshots taken in one period may not generalise to the next.

For researchers, the message is methodological: multidimensional, person-centred approaches can uncover heterogeneity that variable-centred designs smooth over, and sensitivity analyses that vary the weighting of constructs should become standard practice in this field. For communicators and policymakers, the message is humbler: the happy-green synergy is real for some people, irrelevant for others, and inverted for a few. Understanding which profile a given community or demographic occupies could help tailor environmental policies that support, rather than strain, quality of life. The French case offers a template for asking these questions elsewhere, and its central lesson travels well: before assuming that one path leads simultaneously to personal happiness and planetary health, it is worth asking whose happiness, whose health, and whose path.

Subject of Research: The relationship between multidimensional subjective well-being and pro-environmental behaviour in France

Article Title: ‘One Size Does Not Fit All’: When Subjective Well-Being Reflects Distinct Situations in the Adoption of Pro-Environmental Behaviour. The Case of France

Article References: Kuentz, V., & Boschet, C. (2026). ‘One Size Does Not Fit All’: When Subjective Well-Being Reflects Distinct Situations in the Adoption of Pro-Environmental Behaviour. The Case of France. Social Indicators Research, 184(3), Article 49. https://doi.org/10.1007/s11205-026-03936-3

Image Credits: AI Generated

DOI: 10.1007/s11205-026-03936-3

Keywords: subjective well-being, pro-environmental behaviour, France, clustering analysis, ClustGeo, survey research, life satisfaction, environmental psychology, multidimensionality, individual profiles, Social Indicators Research, sustainability