Die chronologische Liste zeigt aktuelle Veröffentlichungen aus dem Forschungsbetrieb der Hochschule Weihenstephan-Triesdorf. Zuständig ist das Zentrum für Forschung und Wissenstransfer (ZFW).
Construction and use of buildings is one of the highest users of global energy (34%) and one of the highest contributors to greenhouse gas emissions (37%). Using wood instead of carbon-intensive materials such as bricks reduces a building's embodied energy and is a more eco-friendly alternative. Since the quota of newly built wooden houses in Germany is still relatively low, gaining insights into the perspective of consumers is crucial. This study aims to investigate factors from a consumer perspective that influence the selection of wood as the primary building material for residential houses. Therefore, an online survey was conducted in Germany to gather data from individuals (N = 510) who either bought or built a house in the last 5 years. By conducting a logistic regression, we have identified six influencing factors for the selection of wood. Positive views on wood's eco-friendliness and emphasis on renewable materials are key factors in choosing wood. Higher age and living in rural areas also increase the likelihood of selecting wood, while concerns about value stability and durability have negative effects. We conclude that increasing information activities, raising awareness about wood's ecological benefits, and dispelling prejudices can significantly impact its selection as a preferred building material.
Since, according to many scientific studies, price is a very important factor when buying fruits and vegetables, it is interesting to study whether price differences between them occur in retail markets. Because of the discussion regarding sustainability, we performed an observational, orienting study on the retail prices of frequently bought packaged and unpackaged fruits and vegetables (apples, tomatoes, and bell peppers) in the Munich area in February and March 2022. We also differentiated between organic and non-organic produce. The relationship between the type of packaging (packaged versus unpackaged) and the retail price (EUR/kg) was determined by means of correlation coefficients, and we examined whether unpackaged products were more expensive than the packaged variants. The results differed for the organic and non-organic variants of the products, as well as among the individual fruit and vegetable varieties. We found a tendency towards unpackaged products being more expensive than packaged fruits and vegetables, in three out of four cases for the non-organic and two out of three cases for the organic products. For all cases, single products and single cost values were observed where the opposite was found.
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Christian Mergel,
Dr. Thomas Decker,
Prof. Dr. Klaus Menrad
The greatly increased global use of plastic has serious negative environmental consequences. This study aims to analyse the influence of environmental attitudes, personal norms, social norms, and socioeconomic and demographic characteristics on consumers’ intention to reduce plastic packaging in different groups of fast-moving consumer goods (FMCGs) in Germany. Data on plastic packaging use for food, clothing, cosmetics, cleaning goods, and furniture were collected from 299 German families in a four-stage survey. The findings show differing consumer intentions to reduce plastic packaging between food products and other FMCG. In particular, environmental attitudes can differentiate between consumer groups with high and low intentions to reduce plastic packaging in nearly all the product groups analysed, while social norms, gender and age only show statistically significant differences in some product groups. Personal norms did not contribute to group differentiation in any of the groups of FMCG analysed. The results are helpful for managers of FMCGs to develop more ecological packaging solutions in the future and for state authorities to derive political activities in this field.
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Dr. Thomas Decker
Praxisforschung für flexible und nachhaltige Wohnkonzepte (2023) Vortrag auf dem 30. CARMEN Forum – Zukünftiges Bauen & Wohnen am 23.03.2023 in Straubing .
Dr. Thomas Decker
Akzeptanz Erneuerbare Energie? (2022) Impulsvortrag auf der Online-Tagung Zukunftsdialog Straubing - Grüne Zeitenwende für Mensch, Umwelt, Klima & Energie, 22.11.2022 .
Christian Mergel,
Prof. Dr. Klaus Menrad,
Dr. Thomas Decker
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