What principle is being utilized when citing expert opinions in a persuasive speech about climate change?

The principle that is relevant when citing expert opinions in a persuasive speech about climate change is credibility. Citing experts provides the audience with a sense of assurance that the information being presented is trustworthy and reliable. When speakers use credible sources, they enhance their own arguments by showing that their claims are supported by recognized authorities in the field. This not only strengthens the speaker's position but also helps to persuade the audience to accept the message, as they are more likely to be influenced by opinions from knowledgeable figures who have a deep understanding of the subject matter.

This approach is particularly effective in discussions about complex issues like climate change, where the audience may seek reassurance that the content is based on sound scientific facts and consensus. By integrating expert opinions, speakers can successfully appeal to the audience's rationality and foster a belief in the speaker's authority.