Despite its role as a key factor for transformation, there is still a lack of large-scale studies on the effects of Education for Sustainable Development (ESD). The aim of this study is to predict sustainable behavior based on reported implementation of ESD as well as psychological (e.g., attitudes, emotions) and socio-demographic variables. Descriptive statistics and a multiple regression model were used to analyze data from 2564 young people from different formal educational fields and 525 teachers from Germany. Both learners and educators desire a distinctly higher amount of ESD within formal educational settings compared to the status quo. The multiple regression model explains 26% of variance in sustainable behavior. By far the strongest predictors are, firstly, connectedness with nature, followed by emotions regarding sustainability and ESD implementation on the content level (making connections between past, present and future, the local and the global, and ecology, economy and the social). One implication of the research findings is an “update” for ESD: Emphasizing the emotional dimension of education and relating the didactics of “controversial issues” to ESD.

(1) Hope and optimism are strongly connected to physical and psychological health and have been much researched in the field of positive psychology. Research has shown that hope is connected to pro-environmental behavior and plays an important role in ESD. (2) In order to operationalize hope and optimism, in a survey, 2564 young people and 525 teachers in Germany assessed the probability and desirability of predefined future scenarios. (3) Only every fourth respondent is optimistic regarding the global future. The biggest discrepancy between expectation and desirability exists with regard to climate change. Latent class analysis revealed four classes, whereby 50% of the participants are “sustainability-affine but disillusioned”. This half of the sample has great potential to promote a sustainable future: For them, a positive socio-ecological future has by far the highest value. They report the strongest emotions regarding SD and want to take the most responsibility for SD. Surprisingly, they do not disclose more sustainable behavior in comparison to the other classes. (4) The low expectation of positive socio-ecological developments might be a central factor in preventing half of the sample from behaving more sustainable and indicating a strong potential for hope. The implications for Education for Sustainable Development are discussed.

To support schools, improve learning outcomes, create innovative learning opportunities, and reduce social disadvantage, many countries have introduced policies to mandate or incentivize educational networks in the last decade. This study focuses on Germany, where around 80% of municipalities established area-based initiative (ABI) structures following a broad range of ABIs. However, research has revealed a gap between intentions and implementation: There is a strong bias toward governance structures, while educational aims have not been achieved.To provide a foundation for purposeful development, a Delphi study has been conducted. Based on a sample of 180 nationwide ABI experts, data was collected in two steps using an online questionnaire on preferred and probable developments in crucial ABI fields. Statistical analyses offer insights into the relation between desirability and expectation and the degree of consensus or divergence among experts. The study shows that after 10 years of experience, the discrepancy between intentions and implementation is expected to remain. Further, it reveals tendencies on the level of governance and thereby contributes to identifying the scope of ABIs. The study concludes that, for future development, it is necessary to define ABIs’ contributions to their initial aims and to reassess their legitimacy.

Introduction: School-based programmes may promote knowledge and skills required to address climate change and better health and well-being in adolescents, yet evidence of their effectiveness is limited. In preparation for evaluating the Public Climate School, a school-based intervention to promote climate awareness and action in adolescents, we conduct a pilot study intended to assess procedures for participant recruitment, retention, and data collection, data quality issues and to provide preliminary parameter estimates to guide sample size calculations. Methods and analysis: This unblinded, cluster-controlled pilot study targets students in twelve classes from grades seven to thirteen in German public schools. Seven and five classes were allocated to the intervention and waitlist control arms, respectively. The intervention consisted of (1) live lessons on YouTube, (2) climate-related challenges of the day, (3) workshops and (4) peer exchange sessions. Waitlist control classes participated three weeks later. Measures included the proportion of students completing baseline and follow-up surveys, a comparison of baseline characteristics between students in the retained subsample and those lost to follow-up, proportions of students completing online and paper–pencil-based surveys and problems during data collection based on information reported by teachers. Data quality was assessed as proportions of missing data, associations between missingness and sociodemographic measures using logistic regression models and basic psychometric properties of scales including ceiling effects and internal consistency. Intentions to reduce one’s ecological footprint, the primary outcome, and all secondary outcomes for effect estimation were assessed one week pre- and post-intervention from November to December 2021 using items adapted from internationally used instruments and will be investigated using generalised linear mixed models and intention-to-treat analyses. Conclusions: The pilot study will lay the methodological groundwork for a large-scale cluster-randomised effectiveness and process evaluation of the Public Climate School. If proven effective and rolled out more broadly, the Public Climate School has the potential to contribute meaningfully to national climate mitigation and adaptation efforts by reaching a substantial share of adolescents in public schools, including those traditionally less involved in climate action.

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