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Michael E. Mann

@michaelemann.bsky.social

92K 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 · Sep 13

"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 · 9h

thanks so much Timothy 🙏🙂

Michael E. Mann @michaelemann.bsky.social · 10h

This is out of the Anne Gorsuch Burford school of "nuclear waste is perfectly safe" www.ehn.org/profiles-in-...
(oh, and that middle name might look familiar)

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Michael E. Mann @michaelemann.bsky.social · 10h

Sean's a friend! We go WAY back!

Michael E. Mann @michaelemann.bsky.social · 10h

p.s. please consider reviewing for Amazon and/or Goodreads!

Michael E. Mann @michaelemann.bsky.social · 10h

thank you so much. Jim has an amazing legacy -- truly a grandfather of climate science. Yeah, he's gone in a direction lately that I'm not crazy about. But it doesn't detract from his amazing legacy.

Reposted by Michael E. Mann

Kendra "Gloom is My Beat" Pierre-Louis @kendrawrites.com · 13h

New York loses bid to prevent Holtec from dumping radioactive water into the Hudson River

A federal judge sided with Holtec, allowing the company to release radiological water from the Indian Point nuclear power plant into the Hudson River.

www.lohud.com

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Reposted by Michael E. Mann

Reposted by Michael E. Mann, Jane E. Fountain

Governor JB Pritzker @govpritzker.illinois.gov · 13h

Trump is stooping so low that he’s gutting the federal Office of Special Education.

Attacking students with disabilities is wrong. Every child in America deserves a fair shot at success.

Amid shutdown, Trump administration guts department overseeing special education

Multiple sources tell NPR that as part of the Trump administration's latest reduction-in-force, the U.S. Department of Education has gutted the office that handles special education.

www.npr.org

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Michael E. Mann @michaelemann.bsky.social · 13h

😊🙏

Michael E. Mann @michaelemann.bsky.social · 13h

My co-author @peterhotezmdphd.bsky.social and I discussed our new book #ScienceUnderSiege with the great @petedominick.bsky.social. Here's the full segment: www.youtube.com/watch?v=GZoj...

Dr Michael Mann and Dr Peter Hotez

YouTube video by Stand Up! With Pete

www.youtube.com

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

Thanks, actually that was a week ago!

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

Thanks--you don't know the half of it!
screenrant.com/dont-look-up...

Don't Look Up: Who Leonardo DiCaprio Is Based On

Randall Mindy is a #SciComm cautionary tale

screenrant.com

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

To be clear, this is actually the OTHER Michael Mann! 😆
#ScienceUnderSiege

Michael Mann thinks One Battle After Another perfectly captures the climate of modern America: https://www.joblo.com/michael-mann-one-battle-after-another/

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

thank you!

GRobbins @ecorobbins.bsky.social · 6d

Recommended reading

Authors of 'Science Under Siege' warn of concerted effort to discredit science search.app/Ljxjg

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

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

search.app

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Reposted by Juan Cole

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

Thanks! (#ScienceUnderSiege is only a month old at this point--but that seems like a lifetime in today's world).

Thom Sanger @thomsanger.bsky.social · 16h

Earlier this year @michaelemann.bsky.social and
@peterhotezmdphd.bsky.social published Science Under Siege, to share their perspectives on battling climate change and vaccine misinformation.
michaelmann.net/books/scienc...

Science Under Siege | Michael E. Mann

How to Fight the Five Most Powerful Forces that Threaten Our World. Two of the world’s most respected scientists reveal the forces behind the dangerous anti-science movement—and show us how to fight b...

michaelmann.net

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Reposted by Michael E. Mann

Jon Cooper @joncooper-us.bsky.social · 16h

‘I love Hitler’: Leaked messages expose Young Republicans’ racist chat

Thousands of private messages reveal young GOP leaders joking about gas chambers, slavery and rape.
www.politico.com/news/2025/10...

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Reposted by Michael E. Mann

Thom Sanger @thomsanger.bsky.social · 16h

Science Under Siege | Michael E. Mann

michaelmann.net

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

🙏🙂

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

thank you!

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

"64 Are Dead and Dozens Missing in Mexico After Heavy Rains Bring Flooding to Five States" via @democracynow.org: www.democracynow.org/2025/10/14/h...

64 Are Dead and Dozens Missing in Mexico After Heavy Rains Bring Flooding to Five States

In Mexico, at least 64 people are dead and dozens remain missing after tropical storms triggered severe flooding across five states. Authorities say some 100,000 homes have been affected. In Alaska, C...

www.democracynow.org

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

"Penn community reflects on Michael Mann’s resignation [as Vice Provost for Climate], implications for institutional neutrality" by Norah Findley for the #DailyPenn: www.thedp.com/article/2025...

Penn community reflects on Michael Mann’s resignation, implications for institutional neutrality

Mann attributed the departure from his vice provost role to tension between his science policy advocacy work and Penn’s institutional neutrality policy. He remains a professor at Penn, and is the dire...

www.thedp.com

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Reposted by Michael E. Mann

Pop-Pop @dcdiversity1.bsky.social · 19h

“They don’t really follow this holy book they wave around like a prop,” @johnfugelsang.bsky.social tells @velshi.com. Fugelsang argues that the rhetoric of Christianity “has been hijacked” by right-wingers and Christian nationalists whose ideology actually runs counter to the teachings of Jesus.”

John Fugelsang: Right-wing Christians use the Bible ‘as a prop’ & ignore Jesus’ message

YouTube video by MSNBC

youtu.be

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Reposted by Michael E. Mann, Julie L. Lockwood

Penn Center for Science, Sustainability & the Media @penncssm.bsky.social · 21h

We are excited to share the latest publication from Senior Research Fellow Dr. Joseph Romm and collaborators titled "Are Carbon Offsets Fixable?" - read more here:
www.annualreviews.org/content/jour...
@michaelemann.bsky.social #climatechange #upenn #penncssm #pcssm #carbon

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

They're not even trying to hide their glee

The Associated Press @apnews.com · 1d

Republican House Speaker Mike Johnson predicts the federal government shutdown may become the longest in history.

Government shutdown could be the longest ever, Speaker Johnson warns

Republican Speaker Mike Johnson predicts the federal government shutdown may become the longest in history.

bit.ly

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Reposted by Michael E. Mann

The Associated Press @apnews.com · 1d

Republican House Speaker Mike Johnson predicts the federal government shutdown may become the longest in history.

Government shutdown could be the longest ever, Speaker Johnson warns

Republican Speaker Mike Johnson predicts the federal government shutdown may become the longest in history.

bit.ly

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

So pleased to see two of my favorite stations #WPSU and @whyy.org join forces to keep public media alive in central PA
(and thanks to Penn State Trustees for reversing course in supporting this venture): www.psu.edu/news/adminis...

Penn State Board of Trustees approves new deal for WPSU | Penn State University

The Penn State Board of Trustees today unanimously approved the material terms of a proposed transaction to transfer the operating assets of WPSU public radio and television stations to WHYY, a public...

www.psu.edu

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Reposted by Michael E. Mann

Penn Center for Science, Sustainability & the Media @penncssm.bsky.social · 1d

Last chance to sign up for our Climate Cafe tomorrow led by PCSSM Senior Fellow Dr. Kate Staley and Dr. Beth Mark! Share your thoughts& feelings about climate change in a supportive setting.
Register here: web.sas.upenn.edu/pcssm/calend...
#upenn #penncssm #climatechange
@michaelemann.bsky.social

Climate Cafe

Are you interested in talking with others about what it’s like to live, learn, and work in this uncertain time of human-caused climate change? The café is a welcoming space to share your experiences, ...

web.sas.upenn.edu

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

So shines a good deed...

Bryant Sell @stormsellwx.bsky.social · 1d

Good news: Penn State has reversed a decision to shut down WPSU. Negotions of selling WPSU to WHYY can now proceed.

www.psu.edu/news/adminis...

Penn State Board of Trustees approves new deal for WPSU | Penn State University

www.psu.edu

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Reposted by Michael E. Mann