Fear Appeals and College Students' Attitudes and Behavioral Intentions toward Global Warming.

This study used Witte's extended parallel process model to examine the relationships between the use of fear appeals and college students’ attitudes and behavioral intentions toward global warming. A pretest-posttest quasi-experimental design was adopted. Three hundred forty-one college students from six communication courses at two universities were recruited for this experiment. The results show that when in a high-threat condition, both high- and low-efficacy messages resulted in positive attitudes and behavioral changes, while in a low-threat condition, low-efficacy messages led to negative changes in attitudes and behavioral intentions. This study suggests that when attempting to promote low carbon-emitting behaviors among college students, messages should contain both threat and efficacy information, but messages that contain low-threat and low-efficacy information should be avoided.