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Ullrich Ecker

@ulliecker.bsky.social
6.4K followers 424 following 43 posts

I study effects of misinformation. Professor at the School of Psychological Science and Fellow of the Public Policy Institute at the University of Western Australia Views my own.

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Reposted by Ullrich Ecker
Trends in Cognitive Sciences @cp-trendscognsci.bsky.social · 29/07/2026
Misinformation as strategy: Epistemic consequences and the undermining of shared truth Review by Ullrich Ecker (@ulliecker.bsky.social), Emily Spearing (@emilyspearing.bsky.social), Renee DiResta (@noupside.bsky.social), & Stephan Lewandowsky (@lewan.uk) tinyurl.com/yces8vpr
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Ullrich Ecker @ulliecker.bsky.social · 25/07/2026
Happy to see this out! There was a suggestion in the literature that susceptibility to continued influence of misinformation decreases with age; we suggest here that this was an artefact and age does not play a big role. Led by the excellent Paul McIlhiney. onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
The Influence of Age on the Effectiveness of Misinformation Retractions
Misinformation has become a much-discussed issue in public and academic domains. One harmful aspect of misinformation is that it can persistently influence people's judgements after clear and credibl...
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Ullrich Ecker @ulliecker.bsky.social · 02/07/2026
Very pleased to share this, out today - we highlight a shift in how misinformation is used not primarily to misinform, but to strategically influence public debate www.sciencedirect.com/science/arti...
sciencedirect.com
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Timothy Caulfield @caulfieldtim.bsky.social · 25/06/2026
Evidence-oriented thinking enhances the effectiveness of science-based corrections www.nature.com/articles/s41... @ulliecker.bsky.social et al 🙏 "...for science to be an effective antidote to disinformation, individuals may first need a cognitive nudge toward an evidence-oriented mindset."
nature.com
When scientific sources fail to convince: evidence-oriented thinking enhances the effectiveness of science-based corrections - Scientific Reports
Scientific Reports - When scientific sources fail to convince: evidence-oriented thinking enhances the effectiveness of science-based corrections
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Stephan Lewandowsky @lewan.uk · 09/04/2026
🧵 New report just dropped 🚨 "Fractured Reality: How Democracy Can Win the Global Struggle Over the Information Space" — from the EU Joint Research Centre, led by Mario Scharfbillig and I. A landmark read for anyone working on disinformation, platforms & democracy. 👇 1/10
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Ullrich Ecker @ulliecker.bsky.social · 08/04/2026
Happy to share this new paper out in JARMAC today, led by the indefatigable @emilyspearing.bsky.social : Reducing the Belief-Boosting Impact of Misleading Graphs With Inoculation doi.org/10.1037/mac0...
doi.org
APA PsycNet
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Ullrich Ecker @ulliecker.bsky.social · 02/04/2026
Glad I was able to contribute to this report for the Office of the Chief Scientist's National Science and Technology Council, "Information resilience: A framework for misinformation interventions", led by Eryn Newman: www.chiefscientist.gov.au/sites/defaul...
chiefscientist.gov.au
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Ullrich Ecker @ulliecker.bsky.social · 31/03/2026
Out now: You sure about that? The effects of textual and image-based skepticism on belief in dubious social-media claims doi.org/10.1186/s412... We tested if comments containing merely a skeptical 🤨 image reduce belief in dubious claims (they do). Led by the excellent @emilyspearing.bsky.social
doi.org
You sure about that? The effects of textual and image-based Skepticism on belief in dubious social-media claims - Cognitive Research: Principles and Implications
On social media, people often react to posts using both written comments and images. While prior work has shown that these reactions can influence belief in claims, it has often conflated signals of (...
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University of Exeter Law School @uniexeterlawschool.bsky.social · 12/02/2026
Restrictive rules surrounding review by the Criminal Cases Review Commission are preventing the efficient identification of some miscarriages of justice, says a new study by Prof. @rebeccakhelm.bsky.social Dir of the Evidence-Based Justice Lab and Dr @emilyspearing.bsky.social tinyurl.com/mrp4hrf9
The front cover of a report called Testimony Evaluation in criminal cases review commission casework. There is a logo of the evidence based justice lab and the University of Exeter, and two legal icons of a court building and a judge.
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Ed Maibach @maibached.bsky.social · 06/01/2026
We know how to win hearts & minds in support of climate action, but we need to put much more effort into actually communicating the proven-effective messages. Folks, time's a wastin'. Let's get 'er done! @ashwinia.bsky.social @profsanderlinden.bsky.social @lewan.bsky.social @ulliecker.bsky.social...
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Stephan Lewandowsky @lewan.uk · 24/11/2025
This is coming up and I thought I'd boost it again with the little test tube icon: 🧪
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Ullrich Ecker @ulliecker.bsky.social · 17/11/2025
New paper by @emilyspearing.bsky.social et al. out now in the Journal of Environmental Psychology Black Summer Arson: Examining the Impact of Climate Misinformation and Corrections on Reasoning doi.org/10.1016/j.je...
doi.org
Redirecting
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Ullrich Ecker @ulliecker.bsky.social · 31/10/2025
Happy to share a new paper (accepted at J Environ Psych), led by the amazing @emilyspearing.bsky.social Black Summer Arson: Examining the Impact of Climate Misinformation and Corrections on Reasoning osf.io/preprints/ps... @johnfocook.bsky.social @lewan.bsky.social @profsanderlinden.bsky.social
osf.io
OSF
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Sander van der Linden @profsanderlinden.bsky.social · 30/10/2025
I hear a lot about misinformation as a "symptom" of "distrust". Here we test this & find that while trust is important, it doesn't buffer: misinfo isn't mitigated by high trust. Both misinfo & distrust *independently* predict vaccine denial. It's a disease of its own! www.nature.com/articles/s41...
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Robin Berjon @robin.berjon.com · 22/10/2025
Having to go to some chatbot to get misinformation is such a waste of time. That's why we need to put this right in the browser so you can get your misinformation faster.
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Niels G. Mede @nielsmede.bsky.social · 21/10/2025
Published today: One of the biggest #science #communication studies to date. We asked 71,922 people in 68 countries how they #engage with information about #science and combined the data with several country-level factors: journals.sagepub.com/doi/10.1177/... #OpenAccess
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Ullrich Ecker @ulliecker.bsky.social · 27/09/2025
Why Misinformation Must Not Be Ignored Quite proud of this paper, which just received the journal's APA Editor's Choice award 😊 Big thanks to my coauthors Li Qian Tay, Jon Roozenbeek, @profsanderlinden.bsky.social, John Cook, @naomioreskes.bsky.social, and @lewan.bsky.social
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mat marques, ph.d. @mdmarques.com · 08/09/2025
"The danger isn’t just the extreme cases — it’s the slow erosion of social trust" some informed opinions on this featuring experts in the space including @ulliecker.bsky.social @drdanieljolley.bsky.social
thewest.com.au
Experts reveal how to change a conspiracy theorist’s mind
Did Dezi Freeman really kill two police officers or was he framed by the Government? This is one question being posed on a Facebook group for last weekend’s March for Australia anti-immigration rallie...
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Dr. Aaron Thierry @thierryaaron.bsky.social · 07/09/2025
"Five tactics used by industry to undermine science. The disinformation playbook tactics are employed by industry during the scientific process and the science-based decision-making process" link.springer.com/article/10.1...
link.springer.com
The disinformation playbook: how industry manipulates the science-policy process—and how to restore scientific integrity - Journal of Public Health Policy
For decades, corporate undermining of scientific consensus has eroded the scientific process worldwide. Guardrails for protecting science-informed processes, from peer review to regulatory decision ma...
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Lisa Fazio @lkfazio.bsky.social · 04/09/2025
Honored to receive the Chancellor's Award for Research for this co-authored paper on the psychology of misinformation. It was really affirming to receive recognition for this research while the field is under attack and misinfo grants are being cancelled. 1/ www.nature.com/articles/s44...
A fancy silver mint julip cup engraved with Chancellor's Award for Research and my name sitting on a wooden shelf with a poster reading "Science and everyday life cannot and should not be separated" - Rosalind Franklin, a glass lego figure, and some other knickknacks Photo of all the awardees with Vanderbilt leadership. Lisa's in a green dress and holding a silver cup
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Ullrich Ecker @ulliecker.bsky.social · 23/07/2025
Great ECR job opportunity on the project “A Unified Computational Model of How Humans Use Automated Advice”: external.jobs.uwa.edu.au/en/job/52075...
external.jobs.uwa.edu.au
Prospective staff : Jobs at UWA : The University Of Western Australia
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Sean Guo @seanguo.bsky.social · 05/07/2025
Happy to share our new research on AI-generated visual misinformation - we find that specific media literacy tips about AI images improve misinformation discernment over general tips about fake news. Feedback and comments welcome! doi.org/10.1186/s412... #psychsky #phdsky
doi.org
Specific media literacy tips improve AI-generated visual misinformation discernment - Cognitive Research: Principles and Implications
Images generated using artificial intelligence (AI) have become increasingly realistic, sparking discussions and fears about an impending “infodemic” where we can no longer trust what we see on the in...
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Carl T. Bergstrom @carlbergstrom.com · 05/07/2025
AI summaries kill search traffic. This has been an obvious consequence of Google's AI summary strategy since its inception. Apparently the training data is so valuable that Google is willing to risk the neck of the goose that lays golden eggs. Screenshot: thebullshitmachines.com/lesson-9-blu...
Screenshot from Modern-Day Oracles or Bullshit Machines (Bergstrom and West 2025).

People wandering through a desert mirage, with the text:

"We anticipate powerful, damaging spillover effects. If no one follows web links, there will be few incentives for people to create high-quality content in the first place.

Meanwhile large language models make it easy to produce low-quality content at the touch of a button. Quality human-created information may be swamped by AI-generated bullshit."
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Ullrich Ecker @ulliecker.bsky.social · 28/06/2025
A very important paper led by the phenomenal @lucy-h-butler.bsky.social Say it with me: Corrections. Of. Scientific. Misinformation. Are. Effective. @lewan.bsky.social @profsanderlinden.bsky.social @lkfazio.bsky.social @tobyprike.bsky.social @brionyswire.bsky.social @emilyspearing.bsky.social
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Eliot Higgins @eliothiggins.bsky.social · 27/06/2025
🧵 THREAD: Why the Cato Institute’s new paper on “misinformation panic” is dangerously wrong, and why it completely misunderstands the real crisis we face. www.cato.org/policy-analy...
cato.org
The Misleading Panic over Misinformation
People can’t agree on how to define misinformation and its related terms, making regulation nearly impossible. Instead, free expression serves as a better tool for discovering truth.
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Ullrich Ecker @ulliecker.bsky.social · 25/06/2025
Very excited to see this out today - led by the fabulous @emilyspearing.bsky.social @lewan.bsky.social @brionyswire.bsky.social @tobyprike.bsky.social royalsocietypublishing.org/doi/10.1098/...
royalsocietypublishing.org
Countering AI-generated misinformation with pre-emptive source discreditation and debunking | Royal Society Open Science
Despite widespread concerns over AI-generated misinformation, its impact on people’s reasoning and the effectiveness of countermeasures remain unclear. This study examined whether a pre-emptive, sourc...
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Doctor Nurse @mattnurse.com · 22/06/2025
Hey Australia, let's stay out of this one, yeah?
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Ullrich Ecker @ulliecker.bsky.social · 22/06/2025
www.abc.net.au/news/2025-06...
abc.net.au
As the media works to win trust, people say they want the truth
Australians want journalists to tell the truth. Is that a simple request?
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Stephan Lewandowsky @lewan.uk · 19/06/2025
I am privileged to announce the publication of the Anti-Autocracy Handbook: sks.to/autocracy 1/12
sks.to
The Anti-Autocracy Handbook: A Scholars' Guide to Navigating Democratic Backsliding
The Anti-Autocracy Handbook is a call to action, resilience, and collective defence of democracy, truth, and academic freedom in the face of mounting authoritarianism. It tries to provide guidance to ...
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Kimberley Wade @kimwade.bsky.social · 15/06/2025
Thanks so much for a fabulous #sarmac2025, @ciaragreene.bsky.social @gillian-murphy.bsky.social! Many details made it such a joyess Irish-tinted celebration of the sarmac community. You're legends & we're immensely grateful ❤️ And I'm wildly proud of this lot too! (Thxs for putting up with me x)
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Lisa Fazio @lkfazio.bsky.social · 13/06/2025
Finally Mitch Dobbs on how correcting false claims can affect source credibility. Why do we see differences between politicians and doctors (corrections decrease trust in lying doctors but not politicians)? Possibly differences in initial trust. #sarmac2025 26/
The Impacts of Intent and Uncertainty on Source Credibility Following the Correction of Misinformation

Mitch Dobbs
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Lisa Fazio @lkfazio.bsky.social · 13/06/2025
Next is @ulliecker.bsky.social on misinformation spread in communication chains. Rather than look at transmission from one to many (eg social media), look at peer-to-peer transmission of misinformation corrections (game of telephone). #sarmac2025 21/
Misinformation Spread in Communication Chains

Toby Prike, Bradley Walker, Nicolas Fay, Andrew Perfors, Yoshihisa Kashima,& Ullrich Ecker
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Lisa Fazio @lkfazio.bsky.social · 13/06/2025
Next @emilyspearing.bsky.social on AI-generated misinformation, its influence and how to correct it. Expected more misinfo reliance in human and AI condition, inoculation would reduce beliefs, trust boost would increase belief and disclaimer would have no impact. #sarmac2025 24/
Photo of Emily in front of slide 
Trust the Machine:

Examining Reliance on Al-Generated Misinformation and How to Reduce It

Emily R. Spearing, Constantina I. Gile, Amy L. Fogwill, Toby Prike, Briony Swire-Thompson, Stephan Lewandowsky, & Ullrich K. H. EckerE1: Method & Predicted Results

Generic article

Al-generated misleading article about the benefits of "trickle-down economics"

Trust Boost

Al algorithms process information neutrally and consistently...

Inoculation

Al-generated Information can reflect human biases and stereotypes...

Disclaimer

Chat GPT can make mistakes. Check important info
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Stephan Lewandowsky @lewan.uk · 06/06/2025
My latest column in Science went up yesterday doi.org/10.1126/scie... . I argue that “Knowledge is power”—or at least it was when Sir Francis Bacon coined this phrase in the 16th century. 1/n
doi.org
Public health suffers when those in power dismiss knowledge
“Knowledge is power”—or at least it was when Sir Francis Bacon coined this phrase in the 16th century. In today’s world, we frequently encounter a different variant of this philosophy, perhaps best de...
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Stephan Lewandowsky @lewan.uk · 26/05/2025
Very pleased to be part of this next Wednesday at 11 am CET (10 am UK). Register here: www.socialchangelab.net/academicrepr... of possible interest to: @scibeh.bsky.social @karmaos.bsky.social @ulliecker.bsky.social @profsanderlinden.bsky.social @jagolinzer.bsky.social
Why do they go after universities?
A panel discussion reflecting on academic freedom and democracy, the people and forces working against them both, and what we can do.
Wednesday, 4 June 2025
7pm to 8pm AEST
Stephan Lewandowsky
Bristol University
Yasemin
Acar
University of St Andrews
Melis Ulug
University of Sussex
Register:
https://www.socialchangelab.net/academicrepression.html
Gill Boehringer
Retired professor of law & activist
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Ullrich Ecker @ulliecker.bsky.social · 25/05/2025
Very glad to see this out: Journal of Applied Research in Memory and Cognition Special Issue Misinformation: Current Directions and New Insights psycnet.apa.org/PsycARTICLES...
psycnet.apa.org
APA PsycNet
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Society for Applied Research in Memory and Cognition (SARMAC) @officialsarmac.bsky.social · 16/05/2025
Coming soon, a special issue of #JARMAC on #Misinformation: Current Directions and New Insights, guest edited by Ulli Ecker. @apajournals.bsky.social
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Ullrich Ecker @ulliecker.bsky.social · 15/05/2025
Glad to see this out! Misinformation-Based Beliefs Can Have Behavioral Consequences A commentray on a thought-provoking article on belief-behavior correspondence by @jgranadossamayoa.bsky.social & @dalbarra.bsky.social www.tandfonline.com/eprint/ZC6SF...
tandfonline.com
Misinformation-Based Beliefs Can Have Behavioral Consequences
Published in Psychological Inquiry: An International Journal for the Advancement of Psychological Theory (Vol. 36, No. 1, 2025)
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Kate Starbird @katestarbird.bsky.social · 26/04/2025
Anything that stands in the way of the right-wing bullshit/propaganda machine is under attack — from the universities to non-profits to the rare online platform that manages to maintain some semblance of information integrity.
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Sander van der Linden @profsanderlinden.bsky.social · 06/05/2025
Decades of research suggest that authoritarian leaders and their admirers consistently share one thing in common: they twist the truth! Our OP-ED in @time.com today about how to fight harmful misinformation! And the need to speak out against it. More speech, not less! 💪 time.com/7282640/how-...
time.com
How to Address Misinformation Without Censorship
Too often, we excuse misinformation as a matter of opinion or free speech. And the consequences are dire.
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Timothy Caulfield @caulfieldtim.bsky.social · 03/05/2025
Manly man BS continues to pollute politics, pop culture, and the wellness woo industry. This science-free "manosphere" noise can do real social, physical, and psychological harm. See our recent CBC documentary: gem.cbc.ca/harder-bette... streaming on @cbcgem.bsky.social
gem.cbc.ca
Harder Better Faster Stronger | Films | CBC Gem
Misinformation expert Timothy Caulfield investigates the purported ‘crisis in masculinity,’ debunks toxic men’s health myths, and meets with people challenging traditional masculine norms.
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Stephan Lewandowsky @lewan.uk · 10/04/2025
Honest people don’t lie. Or do they? Liars aren’t honest. Or are they? One puzzling conundrum in contemporary politics is that politicians who seem to be estranged from facts and evidence are nonetheless considered honest by their followers. 1/n
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Ullrich Ecker @ulliecker.bsky.social · 10/03/2025
Please share! Call for Research Collaborators: Cross-Cultural Study on the Continued Influence of Misinformation We invite researchers to join The Continued Influence Effect of Misinformation Across Cultures (CINEMAC) Mega-Study. More details here: forms.gle/o7mEYtZxFzsM...
forms.gle
Expression of interest - Continued INfluence Effect of Misinformation Across Cultures (CINEMAC) Mega-study
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Stephan Lewandowsky @lewan.uk · 04/03/2025
I wrote this paper with @ulliecker.bsky.social & @johnfocook.bsky.social in 2016 (published in 2017; Beyond Misinformation: Understanding and Coping with the “Post-Truth” Era). At the time I thought I was being dystopian. Now, not so much. At least I didn't self-censor then. doi.org/10.1016/j.ja...
SummaryImagine a world that considers knowledge to be “elitist.” Imagine a world in which it is not medical knowledgebut a free-for-all opinion market on Twitter that determines whether a newly emergent strain of avian flu isreally contagious to humans. This dystopian future is still just that—a possible future. However, there are signsthat public discourse is evolving in this direction: terms such as “post-truth” and “fake news,” largely unknownuntil 2016, have exploded into media and public discourse. This article explores the growing abundance ofmisinformation in the public sphere, how it influences people, and how to counter it. We show how misinfor-mation can have an adverse impact on society, for example by predisposing parents to make disadvantageousmedical decisions for their children. We argue that for countermeasures to be effective, they must be informedby the larger political, technological, and societal context. The post-truth world arguably emerged as a result ofsocietal mega-trends, such as a decline in social capital, growing economic inequality, increased polarization,declining trust in science, and an increasingly fractionated media landscape.
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Fil Menczer @fil.bsky.social · 04/03/2025
IU's Observatory on Social Media defends citizens from online manipulation – the opposite of censorship osome.iu.edu/research/blo...
osome.iu.edu
IU's Observatory on Social Media defends citizens from online manipulation – the opposite of censorship
When thousands of fake accounts controlled by an unknown actor flood social media with some story, and platform algorithms amplify these messages, real...
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Stephan Lewandowsky @lewan.uk · 06/02/2025
My latest column just appeared in Science, entitled "Free speech, fact-checking, and the right to accurate information”. (www.science.org/doi/10.1126/...) I use one of President Trump’s first executive orders to unpack the terrain between misinformation and claims to free speech 1/n
science.org
Free speech, fact checking, and the right to accurate information
True to his campaign promises, on 20 January 2025, US President Donald Trump signed a broad range of Executive Orders, the scope of which ranged from renaming the Gulf of Mexico to “Gulf of America” t...
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Stephan Lewandowsky @lewan.uk · 01/02/2025
The commissars have arrived open.substack.com/pub/insideme...
open.substack.com
BREAKING NEWS: CDC orders mass retraction and revision of submitted research across all science and medicine journals. Banned terms must be scrubbed.
Any unpublished manuscript mentioning certain topics, including gender and "LGBT," must be pulled or revised.
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Philipp Schmid @philippschmid.bsky.social · 01/02/2025
Health misinformation is way less of a problem if accurate information is easily accessible. Absence of info is a public health problem. Really worrying to see this healthjournalism.org/blog/2025/01...
healthjournalism.org
Download time: What journalists should know about disappearing federal health data
Following a Jan. 29 memo, staff at the CDC are removing any content related to “gender ideology,” with a deadline of Friday afternoon.
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Stephan Lewandowsky @lewan.uk · 26/01/2025
Juste came across this interesting paper: repetition does not just cause "illusory truth" but also "illusory implications" -- people make inferences on the basis of familiar (illusory) information. @lkfazio.bsky.social @profsanderlinden.bsky.social @ulliecker.bsky.social doi.org/10.1098/rsos...
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Rebekah Jones @georebekah.bsky.social · 08/01/2025
ABC, NBC & CBS dedicated about 16 minutes of airtime last night to the California wildfires without once mentioning climate change. Since the news failed do it's job, here's a short summary of the role of climate change and wildfire risk: www.noaa.gov/noaa-wildfir...
noaa.gov
Wildfire climate connection
Climate change, including increased heat, extended drought, and a thirsty atmosphere, has been a key driver in increasing the risk and extent of wildfires in the western United States during the last ...
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