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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

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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%

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Michael E. Mann @michaelemann.bsky.social · 26d

"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

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

☹️

Michael E. Mann @michaelemann.bsky.social · 2h

🙏🙂

Reposted by Michael E. Mann

Reposted by Joshua S. Weitz

Michael E. Mann @michaelemann.bsky.social · 2h

Not All Wars Are What They Seem: The False Promise of "The War on Science" | Great #Substack piece by @joshuasweitz.bsky.social contrasts this deceptively similarly-sounding diatribe with my own new book #ScienceUnderSiege w/ @peterhotezmdphd.bsky.social: joshuasweitz.substack.com/p/not-all-wa...

Not All Wars Are What They Seem: The False Promise of "The War on Science"

Reviewing the misguided premise connecting a volume of essays edited by Lawrence Krauss that views the singular threat to science as stemming from forces on the left.

joshuasweitz.substack.com

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Reposted by Michael E. Mann

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

Fantastic profile and discussion of our new book #ScienceUnderSiege by the great @willbunch.bsky.social!

Will Bunch @willbunch.bsky.social · 3h

Trump's dictatorship is time for making moral choices

I talked to the top climate scientist, Penn's Michael Mann, about his great new book - and why he sacrificed a key university post in order to keep speaking the truth against anti-science lies

My new column 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

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

thank you!

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

"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

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Reposted by Michael E. Mann

Will Bunch @willbunch.bsky.social · 3h

This book, co-written with the vaccine expert Dr. Peter Hotez bookshop.org/p/books/scie...

Science Under Siege: How to Fight the Five Most Powerful Forces That Threaten Our World

How to Fight the Five Most Powerful Forces That Threaten Our World

bookshop.org

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Reposted by Michael E. Mann

Will Bunch @willbunch.bsky.social · 3h

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

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Reposted by Michael E. Mann

Michael E. Mann @michaelemann.bsky.social · 5h

As I've often said, there is no path forward in the U.S. on climate, or any of the defining challenges we face, that doesn't go through a functioning democracy.

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Michael E. Mann @michaelemann.bsky.social · 5h

"From Prediction to Reality: How Climate Science Warned Us, and What Comes Next" | Lecture & #ScienceUnderSiege book-signing at @ucmerced.bsky.social, Mon Nov 17!
www.eventbrite.com/e/distinguis...

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Reposted by Michael E. Mann

Michael E. Mann @michaelemann.bsky.social · 5h

alas no, I'm afraid.

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Reposted by Michael E. Mann

Michael E. Mann @michaelemann.bsky.social · 5h

Re-upping this too: www.eenews.net/articles/mic...

Prominent climate scientist Michael Mann resigned this week from one of his positions at the University of Pennsylvania because he said it conflicted with his ability to advocate for political actions to address rising temperatures.

Mann announced Monday that he is no longer the school’s vice provost for climate science, policy and action, an administrative job that he was appointed to in November. He is still the director of UPenn’s Center for Science, Sustainability and the Media and an earth and environmental systems professor.

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Michael E. Mann @michaelemann.bsky.social · 5h

Re-upping this since lies and conspiracy theories run rampant in the fever swamps of today's "right".
#ScienceUnderSiege

Michael E. Mann @michaelemann.bsky.social · 9d

Comment from @upenn.edu Provost John Jackson here:
www.thedp.com/article/2025...

Provost John Jackson told The Daily Pennsylvanian that Mann was neither fired nor “driven-out” of the position.

“I think his position has been that it’s more and more difficult for him to do the kind of public intellectual work he wants to do while also being a University administrator at an institution that says we pride ourselves on institutional neutrality,” Jackson added.

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Michael E. Mann @michaelemann.bsky.social · 6h

Our center ( @penncssm.bsky.social) will be hosting a number of events at @upenn.edu #ClimateWeek next week.

The week of climate-related events will be capped off with our keynote event, my conversation with Bill Nye Friday afternoon!

advertisement of Bill Nye event on October 17

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Michael E. Mann @michaelemann.bsky.social · 6h

Here's the full review of #ScienceUnderSiege in today's Financial Times:

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Michael E. Mann @michaelemann.bsky.social · 6h

Yes, the book spends quite a bit of time discussing just that!

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Michael E. Mann @michaelemann.bsky.social · 6h

Science Under Siege - a rallying cry against the 'forces of darkness' | Great review of my new book with @peterhotezmdphd.bsky.social, #ScienceUnderSiege, by @clivecookson.bsky.social for the @financialtimes.com (paywalled): www.ft.com/content/c4dc...

Science Under Siege — a rallying cry against the ‘forces of darkness’

Two scientists go where many fear to tread in the fight against far-right disinformation on climate and vaccines

www.ft.com

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Michael E. Mann @michaelemann.bsky.social · 6h

Of course he has

Dave Levitan @davelevitan.bsky.social · 1d

Hey cool the NOAA guy who was found to have violated the agency's code of ethics for his role in Sharpiegate has been confirmed as the head of NOAA.

Senate Confirms ‘Sharpiegate’ Meteorologist to Lead NOAA

www.nytimes.com

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Michael E. Mann @michaelemann.bsky.social · 6h

🙏🙂💚

Michael E. Mann @michaelemann.bsky.social · 6h

"And then there's the conservative media, Rupert Murdoch's media empire, FOX News, Wall Street Journal, that have promoted a lot of the anti-science..." | We call out Murdoch & Fox News for the damaging, destructive & indeed deadly role they have played, in the interview (and at length in the book).

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

"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

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Michael E. Mann @michaelemann.bsky.social · 6h

Thanks so much Stefan!

Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 23h

Great interview of climate scientist Mike Mann and virologist Peter Hotez on the war on science by special interest groups. My colleague Mann endured vicious attacks after his pioneering (and solidly confirmed) ‘hockey stick’ curve of #globalwarming.

www.pbs.org/newshour/sho...

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

www.pbs.org

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Reposted by Michael E. Mann