Abstract
Decentralized waste sorting and composting can divert almost two-thirds of household waste from landfill. However, national rates of composting and recycling remain low in many parts of the globe. This review critically evaluates the design and efficacy of behaviour-change interventions to influence households to sort and compost organic waste. The systematic literature search yielded 3595 titles and abstracts which were reviewed and resulted in 14 unique interventions. The social marketing benchmark criteria are utilized to critically examine the design of these interventions. Synthesized results indicate a need for customized interventions that are co-designed with users and tailored to address their specific needs and challenges. Interventions with four or more social marketing elements produced positive behavioural outcomes, albeit with varying impact. This review highlights gaps in the design of waste management interventions and provides suggestions for future practices.
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