Pius Krütli

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Krütli

First Name

Pius

ORCID

0000-0001-5807-1811

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Publications 1 - 10 of 31

Circular bioeconomy practices and their associations with household food security in four RUNRES African city regions
Sekabira, Haruna; Feleke, Shiferaw; Manyong, Victor; et al. (2024)
PLOS Sustainability and Transformation
Achieving the United Nation’s 2030 agenda which aims, among other goals, to ensure sustainable consumption and production patterns, requires a sustainable resource use model deployed at scale across global food systems. A circular bioeconomy (CBE) model of resource use has been proposed to reuse of organic waste in agricultural production to enhance food security. However, despite several initiatives recently introduced towards establishing a CBE in sub-Saharan Africa (SSA), minimal scientific efforts have been dedicated to understanding the association of CBE practices and food security. This study use data from 777 smallholder farm households from DRC, Ethiopia, Rwanda, and South Africa, to examine associations between three CBE practices (use of organic waste as compost, as livestock feed, and sorting waste) and household food security. Using different regression and propensity score matching models (PSM). Result reveal that using CBE practices more likely adds a 0.203 score of food insecurity access prevalence (HFIAP), 1.283 food insecurity access scale (HFIAS-score) and 0.277 for household dietary diversity score (HDDS) among households using CBE practiced groups. Associations regarding using organic waste as compost are generally positive but insignificant, while those with sorting waste are significantly and consistently negative. Thus, CBE innovations aiming to enhance household food security could prioritize organic waste valorization into livestock feed consider socio economic aspects such as access to land, access to market, education level, using mobile phone, income and city regions where interventions took place. However, prior sorting of waste is necessary to enable effective waste valorization.
Positive aspects of high-level waste disposal: what do German citizens think?
Seidl, Roman; Drögemüller, Cord; Krütli, Pius; et al. (2025)
Journal of Integrative Environmental Sciences
The fact that nuclear waste is a problem waiting to be solved is perceived to be a matter of common sense worldwide. Nonetheless, the negative aspects of nuclear waste disposal often dominate public debate. This is also true in the German case of a currently planned deep geological repository (DGR) for high-level nuclear waste (HLW). In studies about risk and benefit perception one may wonder whether the positive aspects proposed by the literature are really part of people's mental models. To date, any positive aspects that the German public associates with a DGR are unknown. In this bottom-up study, we explored the German public's positive perceptions of a DGR based on a sample of N = 2,490 survey respondents in 2022. Our most compelling finding was that while some citizens viewed the resolution of the nuclear waste problem as a key benefit of a DGR, the majority either provided no positive feedback or explicitly stated that there were no benefits. Although workplaces and financial incentives are benefits recognized in existing literature, these were not prominent in our sample. Moreover, there was a clear association between the perceptions of risks and mentioned benefits: individuals who perceived high risks identified fewer positive aspects, whereas those with low-risk perception proposed more benefits. Interestingly, some respondents demonstrated ambivalence, recognizing both moderate risks and positive aspects of a DGR. Our findings indicate many people's tendency to focus on the risks associated with a DGR, overshadowing its potential benefits - a result aligning with the availability heuristic, where risks are more salient in public debate about nuclear waste. This suggests that in discussions typically framed around risks, mentioning benefits might seem inappropriate. We propose that discussing the tradeoffs between a DGR and the status quo, particularly surface storage, could broaden the conversation. Emphasizing both positive and negative aspects might shift the focus from solely on DGR risks to a more balanced view. Despite the majority of the respondents' support for DGR rather than continued surface storage, they struggled to articulate positive aspects of the solution. These inconsistencies in mental models can be expected to a certain extent, highlighting the complex nature of public risk perception and benefit recognition.
Circular bioeconomy in African food systems: What is the status quo? Insights from Rwanda, DRC, and Ethiopia
Sekabira, Haruna; Nijman, Elke; Späth, Leonhard; et al. (2022)
PLoS ONE
Increasing global food insecurity amidst a growing population and diminishing production resources renders the currently dominant linear production model insufficient to combat such challenges. Hence, a circular bioeconomy (CBE) model that ensures more conservative use of resources has become essential. Specifically, a CBE model that focuses on recycling and reusing organic waste is essential to close nutrient loops and establish more resilient rural-urban nexus food systems. However, the CBE status quo in many African food systems is not established. Moreover, scientific evidence on CBE in Africa is almost inexistent, thus limiting policy guidance to achieving circular food systems. Using a sample of about 2,100 farmers and consumers from key food value chains (cassava in Rwanda, coffee in DRC, and bananas in Ethiopia), we explored existing CBE practices; awareness, knowledge, and support for CBE practices; consumers’ opinions on eating foods grown on processed organic waste (CBE fertilizers), and determinants of such opinions. We analysed data in Stata, first descriptively, and then econometrically using the ordered logistic regression, whose proportional odds assumption was violated, thus resorting to the generalized ordered logistic regression. Results show that communities practice aspects of CBE, mainly composting, and are broadly aware, knowledgeable, supportive of CBE practices, and would broadly accept eating foods grown CBE fertilizers. Households with heads that used mobile phones, or whose heads were older, or married, or had a better education and agricultural incomes were more likely to strongly agree that they were knowledgeable and supportive of CBE practices and would eat CBE foods (foods grown on processed organic waste). However, the reverse was true for households that were severely food insecure or lived farther from towns. Rwandan and Ethiopian households compared to DRC were less likely to eat CB foods. Policies to stimulate CBE investments in all three countries were largely absent, and quality scientific evidence to guide their development and implementation is currently insufficient.
Hintergrund der Studie
Scholz, Roland W.; Flüeler, Thomas; Krütli, Pius; et al. (2008)
Gesellschaft und radioaktive Abfälle: Ergebnisse einer schweizweiten Befragung
A transdisciplinary approach to nuclear waste management: Opening research with a Citizens' Working Group
Seidl, Roman; Drögemüller, Cord; Krütli, Pius; et al. (2025)
Ambio
Science often tackles sustainability challenges by not only addressing them (inter-)disciplinary but additionally engaging in societal aspects through transdisciplinary research. Siting a deep-geological repository is a technical and societal challenge. In this study, we present a unique approach that entailed a 4 year collaboration between our research team and a Citizen's Working Group (CWG) on nuclear waste management in Germany. We explored whether and how knowledge could be effectively transferred among researchers and the CWG, as well as how mutual trust could be fostered and maintained. Seventeen ordinary citizens across Germany were selected via a multistep process, including an online survey and interviews. Their contributions provided valuable empirical insights and informed interdisciplinary research questions. We describe this new and challenging process with its multiple methods (surveys, workshops, observations, and interviews) and reflect on our experiences based on a rich set of empirical data. Finally, we discuss the potential for generalization and application of this approach to other topics.
Geplante Milchsammelstelle LANDI: Evaluation von Alternativen
Krütli, Pius (2005)
Can sustainability certification enhance the climate resilience of smallholder farmers? The case of Ghanaian cocoa
Thompson, William J.; Blaser-Hart, Wilma J.; Jörin, Jonas; et al. (2022)
Journal of Land Use Science
Sustainability certification has been posited as a key governance mechanism to enhance the climate resilience of smallholder farmers. Whilst many certifications now include climate resilience in their standards, their ability to deliver this for smallholders remains untested. We take the case of the 2015-16 drought-shock to cocoa production in Ghana to examine whether certification can enhance smallholder climate resilience. We used a novel transdisciplinary methodology combining participatory outcome definition with household surveys, biophysical measurements, satellite data and counterfactual analysis. Utilising our climate resilience framework, we find that certification has a strong effect on the adoption of basic management, e.g. fertilization, but a weak influence on more complex resilience strategies, e.g. agroforest diversification. Beyond certification, we identify strong regional patterns in resilience. These findings suggest that certification has some potential to enhance climate resilience but greater focus on facilitating diversification and adapting to subnational contexts is required for improved effectiveness.
Vergleich der Antworten zwischen verschiedenen Gruppen
Kämpfen, Benjamin; Krütli, Pius; Stauffacher, Michael; et al. (2008)
Gesellschaft und radioaktive Abfälle: Ergebnisse einer schweizweiten Befragung
Restorative effects of physical activity in forests and indoor settings
Hug, Stella-Maria; Hansmann, Ralf; Monn, Christian; et al. (2008)
International Journal of Fitness
In Memoriam: Julie Thompson Klein
Vienni Baptista, Bianca; Pearce, Bin Bin; Paulsen, Theres; et al. (2023)
GAIA - Ecological Perspectives for Science and Society

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Pius Krütli

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