PLoS One. 2026 Mar 31;21(3):e0346303. doi: 10.1371/journal.pone.0346303. eCollection 2026.
ABSTRACT
INTRODUCTION: The latest climate reports underscore the importance of climate change mitigation behaviours in reducing greenhouse gas emissions and achieving the climate goals. There is a growing demand among the general population for guidance on sustainable behaviour change. Previous research has indicated that behavioural interventions could play a significant role in facilitating this type of behaviour change. However, the effectiveness of such approaches has yet to be rigorously tested under scientific conditions. This project aims to assess whether a novel, intervention “Sustainable Choices” effectively promotes climate change mitigation behaviours when compared to a control condition.
METHODS: Voluntary participants will be recruited from the general population in Sweden and randomized to either “Sustainable Choices”, an online, behavioural intervention targeted at Climate Change Mitigation Behaviours (CCMBs), or a waitlist, both 5 weeks of duration. The target sample size is N = 680. The primary outcome of the study will be pre- to post-intervention difference in climate change mitigation behaviours, measured with the Climate Mitigation Behaviour Scale (CLIMBS). Secondary outcomes will include acceptability measures and effects on psychological well-being. Naturalistic follow-up assessments will be administered at 1-, 3- and 6-months after the post-measurement.
DISCUSSION: The increasing awareness of the link between climate change and individual sustainable lifestyle choices has generated a significant interest in this field. Our aim is to evaluate a scalable intervention targeted at CCMBs, while also promoting psychological well-being associated with sustainable lifestyles.
PMID:41915621 | DOI:10.1371/journal.pone.0346303
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