The Framing Effects of Metaphor and Metonymy in Multimodal Campaigns About Plastic Pollution: A Solutions-Oriented and Emotion-Oriented Study

The use of metaphor and metonymy in social awareness campaigns has been shown as an effective strategy to evoke emotional reactions in the audience and influence behavior change. Using authentic campaign discourse, this study investigated how two multimodal, figurative representations of plastic pollution (plastic pollution is war on nature and plastic pollution is usurpation of marine life) influenced participants' responses to solutions-oriented and emotions-oriented measures. The data were gathered from two online surveys: Experiment 1 used Likert-scales and free-text responses; these were analyzed using statistical techniques and semantic frame analysis. Experiment 2 was a shorter follow-up study which used Likert-scales. The results suggest that the war frame inspired more negative emotional reactions overall, whereas the usurpation frame inspired more positive emotions. We also find that political orientation significantly moderates people's sense of empowerment to tackle plastic pollution. The results have implications for future experimental studies seeking to explore the interaction of positive and negative affective states in the context of ecological issues, and for designers of campaigns who seek to use metaphor and metonymy to evoke the desired emotional and behavioral responses.