Review: Do green defaults reduce meat consumption?

• Green defaults are effective in reducing meat consumption. Defaults that aim to reduce consumption operate mainly through the mechanisms of endorsement and effort, whereby former seems be stronger. Contextual moderators such as default’s invasiveness, recognisability presentation alternative, objective study setting further affect default impact. Future research verify quantify impact moderators, assess long-term large-scale effectiveness is needed. Meat production cause a significant share greenhouse gas (GHG) emissions food sector. Behavioural policy suggests using – i.e., pre-setting specific choice option an demand-side instrument This systematic review compiles, critically appraises, synthesises existing empirical evidence on Beyond that, underlying potential effect this context explored. Our synthesis includes twelve individual studies comprising sixteen different interventions. Although extent limited, we quality relatively good. We find nudging consumers eat less meat; despite heterogeneity design implementation interventions, virtually all Moreover, our explorative analysis provides insights into how works context. First, suppose primarily operates effort. Second, identify four contextual namely appear influence conclude promising tool for climate-sensitive policy. could causal defaults’ effectiveness.