Michael E. Mann

@michaelemann.bsky.social

99K followers 600 following 7.7K posts

Scientist/Author/Speaker; Presidential Distinguished Prof/Director Center for Science, Sustainability & the Media, U. Penn; National Academy of Sciences; American Academy of Arts & 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 · Jun 26

Excited to announce my next book, #ComingBacktoEarth, due out in April 2028 from @basicbooksgroup.bsky.social @hachettelibrary.bsky.social/ #PublicAffairs publishing:

Reposted by Julie L. Lockwood

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

Any company that does this should be immediately boycotted.

Climate Power @climatepower.bsky.social · 1h

“The Bureau of Land Management is reviewing data center-related proposals covering at least 17,600 acres of public land across six states — Arizona, Idaho, Nevada, Oregon, Utah and Wyoming.”
https://www.washingtonsun.com/climate-environment/trump-administration-data-centers-public-lands-proposals

Trump Is Considering More Data Centers on Public Lands Than Previously Known

The data center proposals cover at least 17,600 acres of public lands across six Western states.

www.washingtonsun.com

Reposted by Michael E. Mann, Julie L. Lockwood

Climate Power @climatepower.bsky.social · 1h

Trump Is Considering More Data Centers on Public Lands Than Previously Known

The data center proposals cover at least 17,600 acres of public lands across six Western states.

www.washingtonsun.com

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

One more event tomorrow (Sunday)
#ClimateWeekNYC
michaelmann.net/events/nyc-c...

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

Thanks Ketan. Really appreciate that.

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

Thanks Dan

Michael E. Mann @michaelemann.bsky.social · 7h

"What Happens When Earth Passes 1.5 Degrees of Warming" via @stevecurwood.bsky.social & @livingonearthradio.bsky.social by way of @insideclimatenews.org: insideclimatenews.org/news/1909202...

What Happens When Earth Passes 1.5 Degrees of Warming? - Inside Climate News

From our collaborating partner “Living on Earth,” public radio’s environmental news magazine, an interview by host Steve Curwood with climate scientist Michael Mann. As the United Nations prepares to ...

insideclimatenews.org

Reposted by Michael E. Mann

Ruth Merino @ruthmerino.bsky.social · 15h

Joe Romm. He was a great friend/colleague of @michaelemann.bsky.social .
web.sas.upenn.edu/pcssm/news/r...
"To improve communications about climate change and other issues, he wrote Language Intelligence and How to Go Viral and Reach Millions." And he loved comedy!
@sammyroth.bsky.social

Remembering Dr. Joe Romm

It is with great sadness that the Penn Center for Science, Sustainability and the Media shares news of the passing of PCSSM Senior Research Fellow Dr. Joe Romm. Please find below an obituary prepared ...

web.sas.upenn.edu

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

thanks Zoe. Really appreciate that.

Michael E. Mann @michaelemann.bsky.social · 21h

indeed. thanks Jeff.

Michael E. Mann @michaelemann.bsky.social · 22h

thanks Dan

Michael E. Mann @michaelemann.bsky.social · 22h

thanks Shirley

Michael E. Mann @michaelemann.bsky.social · 23h

thanks Paul

Michael E. Mann @michaelemann.bsky.social · 23h

Here is my own statement about Joe's passing:

Michael E. Mann @michaelemann.bsky.social · 23h

thanks Danny

Michael E. Mann @michaelemann.bsky.social · 23h

thanks Jon

Michael E. Mann @michaelemann.bsky.social · 23h

Thanks Kristin

Reposted by Michael E. Mann

Stand Up for Science! @standupforscience.net · 1d

Join Dr. Mann, Dr. Jones, & Stand Up for Science for a timely conversation exploring the fault lines between scientific consensus, democratic governance, and the climate crisis.

Register at: buff.ly/Vq3N3HP

Stand up for Science

buff.ly

Reposted by Michael E. Mann

Stand Up for Science! @standupforscience.net · 1d

Dr. Michael Mann is a Presidential Distinguished Professor in the Deptartment of Earth and Environmental Science at the University of Pennsylvania, with a secondary appointment in the Annenberg School for Communication. His research focuses on climate science and climate change.

Photo of Dr. Mann with folded arms and a slight smile standing on a paved park path with blurred greenery and metal railings behind him

Reposted by Michael E. Mann

Stand Up for Science! @standupforscience.net · 1d

Come join us at NYC Climate Week and examine how climate science shapes—and fails to shape—policy, why democratic institutions sometimes struggle to act on urgent scientific warnings, & what it will take to bridge the gap between what we know & what we do.

Meet our panelists below! 🧵 🧪

The graphic depicts a photo of Dr. Colette Delawalla, Founder and CEO of Stand Up for Science, Dr. Ticora Jones, Chief Science Officer at the National Resources Defense Council, and Dr. Michael Mann, University of Pennsylvania Climate Change Researcher. The graphic reads: "Stand Up for Science presents Science, Democracy, and Climate. Our panelists will examine how climate science shapes—and fails to shape—policy, why democratic institutions sometimes struggle to act on urgent scientific warnings, and what it will take to bridge the gap between what we know and what we do. Register at the link in our bio."

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

"Alarming Global Temperature Rise" | My interview this week with the wonderful @stevecurwood.bsky.social for @prx.org @livingonearthradio.bsky.social: www.loe.org/shows/segmen...

Living on Earth: Alarming Global Temperature Rise

2026 was recorded as one of the hottest summers globally, with deadly heatwaves in Europe and catastrophic floods in Nepal. Ahead of a September meeting, the United Nations put out a report warning th...

www.loe.org

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

a beautiful passage

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

thanks Desi. Yes, Joe was full of these pearls of wisdom and eloquent in how he expressed and shared them.

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

thanks David. Yes, Joe's white papers can all be found here: web.sas.upenn.edu/pcssm/public...

Publications

Information about PCSSM researcher white papers, published articles, and research reports can be found on this page. 2026 American Psychological Association. 2026. Schools, Climate, and Health: Respon...

web.sas.upenn.edu

Reposted by Michael E. Mann

Ed Maibach @maibached.bsky.social · 1d

RIP @joeromm.bsky.social. Thanks for all you did to wake us up to the risks of climate change and the possibilities for climate solutions.

@mason4c.bsky.social
@docsforclimate.bsky.social
@tccollab.bsky.social
@coveringclimatenow.org
@michaelemann.bsky.social

Remembering Dr. Joe Romm

web.sas.upenn.edu

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

indeed. thanks Sammy.

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

thanks Jeff

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

yes, Joe was a one-off.

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

"Veganism for thee, not me!"

Larry Wayne @larryranting.bsky.social · 1d

Meanwhile, Republicans are attacking @jamestalarico.bsky.social for dating a vegan.

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

Don't believe him! It's people...his "veggie burgers" are made out of people!
(h/t @rpsagainsttrump.bsky.social )

Reposted by Katharine Hayhoe, Stephen D. Murphy, Juan Rocha , and 1 more Katharine Hayhoe, Stephen D. Murphy, Juan Rocha, Glenn Branch

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

It is with tremendous sadness and sense of loss that we regretfully share the news that @penncssm.bsky.social senior research fellow, and my close personal friend Joseph Romm has passed away unexpectedly. He will be sorely missed here.
web.sas.upenn.edu/pcssm/news/r...

Remembering Dr. Joe Romm

web.sas.upenn.edu

Reposted by Michael E. Mann

Larry Wayne @larryranting.bsky.social · 1d

Meanwhile, Republicans are attacking @jamestalarico.bsky.social for dating a vegan.

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

Don't believe him! It's people...his "veggie burgers" are made out of people!
(h/t @rpsagainsttrump.bsky.social )

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