If you’re interested in STEM subjects, it’s salubrious to follow the Heterodox STEM Substack site, where you’ll see takes on science that are sufficiently heterodox that they’d be hard to publish in regular journals. Also, there are useful summaries of the literature, including as this one on scientific censorship published today by Anna Krylov and Jan Tanzman.
Their article has an introduction, a report on the increase in scientific censorship, and then a useful list of articles about the nature, causes, and effects of that censorship. If you don’t think the practice exists, or is exerted only minimally, have a look at the piece and the papers it cites.
Click on the screenshot to read:
The introduction:
We have prepared a compilation of recent articles documenting present-day censorship in science and explaining the mechanism by which censorship in science operates.
Recently, science journals and publishers have opened a new and disturbing chapter in the history of scientific censorship: the censorship of scientific articles that are alleged to be “harmful” to a particular group or population, a practice that violates the guidelines of the Committee on Publication Ethics (COPE). The practice began with scientific journals retracting articles in response to the demands of online mobs, but has since been codified into policy by various editorial boards and scientific publishers.
Censorship is objectionable on both philosophical and pragmatic grounds. On the philosophical side, the notion that that the public must be protected from dangerous or harmful knowledge is at odds with liberal Enlightenment values, according to which knowledge is power, which the public is capable of using responsibly. On the practical level, by hiding selected facts, censorship distorts our understanding of the world, thereby undermining our ability to solve challenging problems. Censorship also leads to distrust in science. When scientists hide selected facts to promote their political agendas, the public rightfully perceives them as politically motivated agents rather than objective and trustworthy experts.
Despite the long history of scientific censorship and its current prevalence, the mechanisms by which censorship operates, the agents who impose censorship and their motives, and the ultimate costs of censorship have not been systematically investigated. A recent paper in the Proceedings of the National Academy of Sciences (PNAS) by Cory Clark and 38 co-authors, Prosocial Motives Underlie Scientific Censorship by Scientists: A Perspective and Research Agenda (Clark et al. 2023), takes a stab at this issue. The paper lays out important questions regarding the nature and consequences of censorship and puts out a call for systematic research on the subject.
One of the paper’s co-authors, psychology professor Steve Stewart-Williams, summarizes the evidence for the current wave of scientific censorship and self-censorship, as well as the rise of censorious attitudes among scientists, which motivated the paper:
- Increasing numbers of scientists report being sanctioned for conducting politically contentious research.
- Retractions of papers have become more and more common over the last decade, and at least some of these appear to have been driven primarily by concerns other than scientific merit. One group of scholars even retracted their own paper, not because it was scientifically flawed, but because it was being cited by conservatives in ways the authors didn’t approve of.
- Several lines of research suggest that studies reaching politically unpalatable conclusions may have a harder time negotiating the peer-review process than they would if the conclusions were in the opposite direction. As the paper notes, “When scholars misattribute their rejection of disfavored conclusions to quality concerns that they do not consistently apply, bias and censorship are masquerading as scientific rejection.”
- Recent surveys suggest that many academics support censuring or censoring controversial research, with support being strongest among younger scholars.
- Unsurprisingly, recent polls also suggest that many academics now self-censor on even mildly controversial topics.
- A large number of academics express a willingness to discriminate against conservatives when it comes to hiring, publications, grants, and promotions. Unsurprisingly, conservative scholars are particularly likely to self-censor.
- A growing number of journals have explicitly committed to judging scientific papers not just on the quality of the research but also on their (supposed) social or political impact. “In effect,” note Clark et al., “editors are granting themselves vast leeway to censor high-quality research that offends their own moral sensibilities.”
Table 1 of Clark et al. presents the following taxonomy of censorship:
The intro continues:
. . . Motivated by publication of this foundational paper (Clark et al. 2023), we have compiled a virtual collection of scientific papers, viewpoints, and op-eds that document the modern rise of censorship in science. Our list is most likely incomplete and we encourage readers to add relevant references in the comments.
There follow a list of 38 papers, with some commentary by Anna and Jay. It’s an extremely useful compilation of discussions about how scientific truths are prevented from coming to light, usually because they are politically unpalatable or present data and conclusions that make people uncomfortable in a “progressive” climate.
To be a wee bit self-aggrandizing, I’ll show two examples given by Anna and Jay of useful scientific critiques that had a hard time finding a home (I helped write one of them). I’m familiar with both, and the first one (not mine) is a doozy. The first one is discussed in the paper by Reichhardt et al. (2023), Resistance to Critiques in the Academic Literature: An Example from Physics Education Research, Eur. Review 31 547, 2023.
The authors present a rebuttal of a paper recently published in the physics education journal Physical Review—Physics Education Research. The paper, which is titled Observing Whiteness in Introductory Physics: A Case Study, arguably sounds more like a hoax than an actual paper with content relevant to physics education. But the rebuttal treats the paper seriously and offers a substantive, professional, and detailed critique. The rebuttal, which was submitted to the same journal as the original paper, was rejected by the editors. The main reason cited for the rejection was that the rebuttal was “framed from the perspective of a research paradigm that is different from the one of the research being critiqued”—indeed, the authors used scientific methods to debunk a postmodernist paper. The communication between the authors and the journal revealed the true nature of rejection.
The second example is the story of how a paper with the seemingly mundane title In Defense of Merit in Science (Abbot et al. 2023) wound up being published in the Journal of Controversial Ideas. The story is narrated by Coyne and Krylov in The ‘Hurtful’ Idea of Scientific Merit, an op-ed published in the Wall Street Journal (for a non-paywalled transcript see Our Wall Street Journal Op-ed: Free at Last!, published by Coyne on Why Evolution is True).
The reference list gives a lot more, some of which cite papers like the “whiteness in physics one” which are so off the rails that they instantiate the last thing Luana and I wrote:
Unless there is a change in the Zeitgeist, and unless scientists finally find the courage to speak up against the toxic effects of ideology on their field, in a few decades science will be very different from what it is now. Indeed, it’s doubtful that we’d recognize it as science at all.










