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People engage in many different activities with climate consequences, including mundane everyday activities, such as eating meals and either saving or throwing away leftovers, and collective actions, such as voting, participating in political events and in other ways expressing support for or resistance against climate-relevant policy. Does engaging in everyday climate-relevant activities have implications for support of climate policy, and vice versa, as suggested by research on pro-environmental behavioural spillover? A repeated survey was collected yearly between 2018 and 2022 from representative samples of Norwegians, most of whom participated in more than one survey. The surveys included self-reports about two everyday climate-relevant behaviours (eating red meat and discarding food waste) and the support for two types of policy to mitigate climate change (expansion of wind power and “carbon taxes” – the use of taxes or fees to regulate climate-relevant behaviour). Cross-lagged structural equation modelling of relationships between everyday climate-relevant behaviour and support for mitigation policy reveal that, as expected, all auto-regressive effects (of a latent variable on itself, measured one year apart) are highly significant. There are also significant, positive cross-lagged (i.e., spillover) effects, which are generally bigger between the two types of everyday behaviours and support for the two types of policies than between everyday behaviour and policy support. However, support for carbon taxes has a strong positive effect on reducing meat consumption. Hence, it appears that when it comes to climate actions, consumer and citizen roles are intertwined. Spillover effects are partly mediated through climate concern. • Climate-friendly responding tends to spill over to more behaviours over time. • The spillover process is partly mediated through increased climate concern. • Climate-relevant behaviour and support for climate policy become more consistent.
Thøgersen et al. (Tue,) studied this question.