In recent work, Stephen John (2018, 2019) has deepened the social epistemological perspective on expert testimony by arguing that science communication often operates at the institutional level, and that at that level sincerity, transparency, and honesty are not necessarily epistemic virtues. In this paper I consider his arguments in the context of science journalism, a key constituent of the science communication ecosystem. I argue that this context reveals both the weakness of his arguments and a need for further analysis of (...) how non-experts learn from experts. (shrink)

The claim that we live in a post-truth era has led to a significant body of work across different disciplines exploring the phenomenon. Many have sought to investigate the role of fake news in bringing about the post-truth era. While this work is important, the narrow focus on this issue runs the risk of giving the impression that it is mainly new forms of media that are to blame for the post-truth phenomenon. In this paper, we call attention to the (...) ways in which journalistic practices in traditional forms of media also play an important role in contributing to a post-truth environment. We will do so by focusing on one particular practice common in news journalism. False balance involves presenting two sides of a debate as more equal than is justified by the evidence. We will argue that although false balance does not constitute fake news, it does contribute to an environment in which truth is devalued. By obscuring what counts as evidence and who qualifies as an authority, false balance legitimizes post-truth attitudes. We finish by outlining the virtues that journalists should develop in order to guard against false balance. While fake news is made more likely when journalists possess the vices of dishonesty, prejudice or corruption, we argue that focusing too much on guarding against these vices may actually make false balance more likely. In order to be responsible gatekeepers and to avoid false balance, journalists must also develop the virtues of wisdom, vigilance, courage, care and justice. (shrink)

Around 97% of climate scientists endorse anthropogenic global warming (AGW), the theory that human activities are partly responsible for recent increases in global average temperatures. Clearly, this widespread endorsement of AGW is a reason for non-experts to believe in AGW. But what is the epistemic significance of the fact that some climate scientists do not endorse AGW? This paper contrasts expert unanimity, in which virtually no expert disagrees with some theory, with expert consensus, in which some non-negligible proportion either rejects (...) or is uncertain about the theory. It is argued that, from a layperson’s point of view, an expert consensus is often stronger evidence for a theory’s truth than unanimity. Several lessons are drawn from this conclusion, e.g. concerning what laypeople should infer from expert pronouncements, how journalists should report on scientific theories, and how working scientists should communicate with the public. (shrink)