This chapter looks at how scientific conclusions should be communicated to the public. It reviews evidence that communicating the scientific consensus on an issue can change public beliefs. However, some people reject the scientific consensus on issues like climate change and vaccine safety, because they do not trust scientists, basing this mistrust on the clash between their own values and the values inherent in the scientists’ consensus, and they may overestimate their own understanding of very technical areas. A possible way forward is to educate people about the important role of consensus in science more generally, rather than focus solely on consensus messages about specific scientific issues. This would require a greater understanding of the role of consensus in science at all levels of science education from high school through to specialist postgraduate training.