Do one’s moral foundations impact how they respond to information on climate change emissions? A vehicle choice experiment

Transportation is a major source of climate change emissions. Providing people with better information on those emissions is one means of helping individuals make climate-friendly choices. However, not everyone is influenced by the same type of information. Previous research has demonstrated that Goal Framing Theory could help improve the influence of climate change emissions information and that different framings have different levels of influence depending on a number of socio-demographic and attitudinal characteristics. However, apart from climate change motivation, what other underlying psychological factors might help us understand why the framings vary in their influence between individuals? Moral Foundation Theory (MFT) identifies key values that influence people’s moral decisions, providing a useful framework for understanding diverse responses to information. The objective of this study is to understand whether MFT can help explain different responses by individuals and identify which framings are associated with stronger responses for different moral foundations. This study investigates the moderating effects of moral foundations on individuals’ responsiveness to different emission information framings. Utilizing data from discrete choice experiments involving 2015 Canadian drivers, we examine how different moral foundations impact the willingness-to-pay (WTP) for reducing emissions. The results reveal that the impact of emissions information framing varies significantly according to individuals’ moral foundations. Specifically, moral values associated with Authority, Fairness, and Purity play negative moderating roles on WTP for CO₂ emissions under different framings, whereas Ingroup and Harm foundations have positive moderating effects on WTP with the framings tested. Additionally, innovative communication tools like new emojis demonstrated strong positive effects on WTP, especially among those with strong Ingroup, Fairness, and Purity values. Conversely, individuals with a strong Authority value showed the lowest WTP when presented with pressure gauge visuals. Using appropriate framing based on Moral Foundation Theory can considerably change the willingness-to-pay for climate change emissions for different parts of the population, with a notable increase in WTP observed among individuals inclined to alter their behavior. Future framings should incorporate MFT in their design.