Lightnews — Scholar-powered news

Michael E. Mann

@michaelemann.bsky.social

91K followers 500 following 4.3K posts

Scientist/Author/Speaker; Presidential Distinguished Prof/Director Center for Science, Sustainability & the Media, U. Penn; National Academy of Sciences; Royal Society; Tyler Prize

Videos

Michael Evan Mann is an American climatologist and geophysicist. He is the director of the Center for Science, Sustainability & the Media at the University of Pennsylvania. Mann has contributed to the scientific understanding of historic climate change based on the temperature record of the past thousand years. He has pioneered techniques to find patterns in past climate change and to isolate climate signals from noisy data. .. more

Environmental science 37%

Political science 15%

Posts Media Videos Starter Packs

Pinned

Michael E. Mann @michaelemann.bsky.social · 27d

"Scientists strive to be apolitical, but they can’t keep politics out of their labs" | Great review of my new book with @peterhotezmdphd.bsky.social, #ScienceUnderSiege, in the @latimes.com (and @yahoonews.com), courtesy of Michael Hiltzik: www.yahoo.com/news/article...

Hiltzik: Scientists strive to be apolitical, but they can't keep politics out of their labs

Since Galileo's time, politicians and ideologues have always tried to interfere with science. It's worse than ever today.

www.yahoo.com

10 82 220

Reposted by Michael E. Mann

Penn Center for Science, Sustainability & the Media @penncssm.bsky.social · 14h

Don’t miss out on our events next week during #ClimateWeekatPenn! First up Dr Kate Staley and Dr Beth Mark are cohosting a climate cafe. Link in bio for more info. @michaelemann.bsky.social

2 5

Reposted by Michael E. Mann, Mohan J. Dutta, Michael A. Shook , and 1 more Michael E. Mann, Mohan J. Dutta, Michael A. Shook, Dean Baker

Michael E. Mann @michaelemann.bsky.social · 15h

Yes, "Red COVID" is discussed at length in #ScienceUnderSiege (by myself and @peterhotezmdphd.bsky.social)

1 11

Michael E. Mann @michaelemann.bsky.social · 16h

"Fox News Could Be Sued if Its Anti-Vax Statements Caused People to Die"
slate.com/news-and-pol...
#ScienceUnderSiege

Fox News Could Be Sued if Its Anti-Vax Statements Caused People to Die

Tort law allows anyone injured by the intentional bad act of another to sue for personal injury, property damage, or economic loss.

slate.com

3 7 33

Reposted by Michael E. Mann

Michael E. Mann @michaelemann.bsky.social · 17h

🙏😊

Michael E. Mann @michaelemann.bsky.social · 17h

Our book #DirePredictions is 10 years old at this point but still a solid reference for projected climate impacts. You might also take my (free) online course which addresses: www.edx.org/learn/climat...

SDGAcademyX: Climate Change: The Science and Global Impact | edX

We need to understand the science behind global warming to avoid the most damaging and irreversible climate change impacts on people and planet.

www.edx.org

1 1 2

Michael E. Mann @michaelemann.bsky.social · 17h

Thanks for the shout-out!

James Aura @jamesaura.bsky.social · 2d

“Science Under Siege,” by Michael E. Mann and Peter J. Hotez, is an impassioned manifesto against attacks on science.
undark.org/2025/10/03/b...

Book Review: A Call to Arms About the Threat of Anti-Science

"Science Under Siege," by Michael E. Mann and Peter J. Hotez, is an impassioned manifesto against attacks on science.

undark.org

8 21

Michael E. Mann @michaelemann.bsky.social · 17h

Thanks so much Vicki. Please consider reviewing for e.g. Amazon and/or Goodreads 🙏🙂

1 1

Reposted by Michael E. Mann, Dean Baker

Reposted by Michael E. Mann

Michael E. Mann @michaelemann.bsky.social · 18h

It was ambiguous given the phrasing of your comment.

Michael E. Mann @michaelemann.bsky.social · 18h

When Fox News lies, people die | We explain on PBS Newshour how the antiscience disinformation spread by the Murdoch media empire and especially Fox News, likely lead to hundreds of thousands of unnecessary deaths in the U.S. And that's just COVID-19. Their fossil fuel disinformation is as deadly.

Michael E. Mann @michaelemann.bsky.social · 3d

"Authors of 'Science Under Siege' warn of concerted effort to discredit science" | My #ScienceUnderSiege co-author @peterhotezmdphd.bsky.social & I spoke with @wbrangham.bsky.social of the @pbs.org #Newshour:
www.pbs.org/newshour/sho...

Authors of 'Science Under Siege' warn of concerted effort to discredit science

From its embrace of dubious research about autism, its skepticism over vaccines and its wholesale rejection of the consensus about climate change, the Trump administration has set off alarm bells with...

www.pbs.org

3 91 190

Michael E. Mann @michaelemann.bsky.social · 18h

🙏🙂

Michael E. Mann @michaelemann.bsky.social · 18h

"He explained to me that he could hold onto his administrative post at Penn — which, in the contentious Trump era, has doubled down on institutional neutrality...Or he could heed the advice of his own book, and keep brawling in the rough-and-tumble arena for scientific truth.

Mann chose to fight."

Michael E. Mann @michaelemann.bsky.social · 1d

"Science is under siege. How Penn’s top climate scientist is fighting back" | Nice piece about my new book with @peterhotezmdphd.bsky.social, #ScienceUnderSiege, by the great @willbunch.bsky.social for the Philadelphia @inquirer.com: www.inquirer.com/opinion/scie...

Science is under siege. How Penn’s top climate scientist is fighting back | Will Bunch

Michael E. Mann's new book, and the sacrifice this Penn scientist made to fight the war against climate disinformation.

www.inquirer.com

3 36 120

Reposted by Michael E. Mann

Reposted by Michael E. Mann, Christopher Wright

Michael E. Mann @michaelemann.bsky.social · 19h

thank you!

Michael E. Mann @michaelemann.bsky.social · 19h

Indeed---discussed in #ScienceUnderSiege

Nicolas c Grey @nicolascgrey.bsky.social · 19h

The first tweet Murdoch tweeted was a retweet from Matt Ridley , who as you know, pushed the climate gate emails, and now is doing exactly the same thing with the origins of Covid 19 . www.theguardian.com/theobserver/...

Climategate 10 years on: what lessons have we learned?

A series of leaked emails was leapt on by climate-change deniers to discredit the data, but their efforts may have only slowed the search for solutions

www.theguardian.com

1 7 25

Reposted by Michael E. Mann