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Michael E. Mann

@michaelemann.bsky.social
99K followers 606 following 7.8K 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 E. Mann @michaelemann.bsky.social · 25m
TODAY 5:30pm on the College Green -- Free Pizza! @penncssm.bsky.social @upennclimate.bsky.social @upenn.edu #PennClimateWeek
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Michael E. Mann @michaelemann.bsky.social · 4h
The DeNiro we've been waiting for all our lives
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Mann Research Group @mannresearch.bsky.social · 1h
PhD student Chris Larson gave a 1.5 minute student climate lecture to help kick off Climate Week at Penn! @michaelemann.bsky.social #ClimateWeekAtPenn
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Rocky Kistner @therockyfiles.bsky.social · 3h
"this conversation brings together three candidates who used their scientific backgrounds to support evidence-based policymaking in the federal government, and have now stepped up to run for Congress."
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Michael E. Mann @michaelemann.bsky.social · 4h
The DeNiro we've been waiting for all our lives
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David Rothkopf @djrothkopf.bsky.social · 16h
We will never again be a democracy if we don't get the big money out of American politics. There should not be any higher priority. davidrothkopf.substack.com/p/one-priori...
davidrothkopf.substack.com
One Priority Above All Others
We Must Drain the Poison Out of Our Body Politic If There Is to Be a Better World After Trump
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Mrs. Betty Bowers @mrsbettybowers.bsky.social · 23h
The collective ignorance of MAGA, a cult that mindlessly repeats whatever they've been told by liars—and knows no actual history.
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Michael E. Mann @michaelemann.bsky.social · 20h
#PennClimateWeek TOMORROW @upenn.edu @penncssm.bsky.social @upennclimate.bsky.social
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Michael E. Mann @michaelemann.bsky.social · 20h
#PennClimateWeek TOMORROW @upenn.edu @penncssm.bsky.social @upennclimate.bsky.social
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Michael E. Mann @michaelemann.bsky.social · 22h
Cos-Tan-Za
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Michael E. Mann @michaelemann.bsky.social · 04/10/2026
are we not Menn? We are Devo!
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Michael E. Mann @michaelemann.bsky.social · 04/10/2026
😆👍
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Philip Ball @philipcball.bsky.social · 04/10/2026
I think the credit should have thanked Michael Menn, to cover all bases.
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Michael E. Mann @michaelemann.bsky.social · 04/10/2026
🙏
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
First of two events I'll be doing in the U.K. during the week of Oct 12 | "Insight lecture" on #ScienceUnderSiege at the #CrickInstitute in London, 4pm Wed Oct 14: michaelmann.net/events/scien...
michaelmann.net
Science Under Siege (The Francis Crick Institute, London, UK) | Michael E. Mann
Science Under Siege   From pandemics to the climate crisis, humanity faces tougher challenges than ever. Whether it’s the health of our people or the health […]
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
Join me on Oct 6 at 7pm for “Can Scientists Help Fix Congress?”, a panel moderated by me. This discussion features a live inside look at the researchers taking their expertise to Congress. Event is hosted online via Zoom. us06web.zoom.us/webinar/regi...
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
Second of two events I'll be doing in the U.K. during the week of Oct 12 | I will be in conversation at the #OxfordUnion in Oxford, 5pm Thurs Oct 15: issuu.com/oxfordunion/...
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Michael E. Mann @michaelemann.bsky.social · 04/10/2026
But far more likely the director, since he was in attendance at the premier (and I was not)
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Michael E. Mann @michaelemann.bsky.social · 04/10/2026
I did have a phone conversation with Alejandro about climate change a couple years ago -- so honestly, it could actually be me!
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Michael E. Mann @michaelemann.bsky.social · 04/10/2026
I did have a phone conversation with Alejandro about climate change a couple years ago -- so honestly, it could actually be me!
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Michael E. Mann @michaelemann.bsky.social · 09/05/2026
"F&ck the planet" by the New York Times
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If Books Could Kill @ifbookspod.bsky.social · 30/09/2026
This month's bonus episode is about how climate change is fake but the hosts' body horror is real.
patreon.com
Conspiracies of Yore: Climategate | If Books Could Kill
Michael and Peter discuss Climategate, the scandal that rocked the climate science world. With scientists on one side, and paid lackeys for
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Peter Steward Scholtes @petescholtes.bsky.social · 03/10/2026
Pure cathartic joy in defense of climate science and @michaelemann.bsky.social.
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Colette Delawalla, PhD @cdelawalla.bsky.social · 02/10/2026
This is why science is a critical pillar of democracy, BTW.
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Penn Center for Science, Sustainability & the Media @penncssm.bsky.social · 02/10/2026
Last chance to register for our event "Getting Sports Fans into the Climate Game" on Monday 10/5 at 5:30pm! Pizza available for attendees and event is in person (no virtual option at this time). Register here: www.eventbrite.com/e/getting-sp...
eventbrite.com
Getting Sports Fans into the Climate Game
Join PCSSM & EcoAthletes for an event on sports and climate action!
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John Ryan @heyjohnryan.bsky.social · 02/10/2026
What happens off Peru doesn’t stay off Peru: El Niño belches ocean heat into the atmosphere and alters weather all around the world, including the Pacific Northwest. www.kuow.org/environment/...
kuow.org
El Niño could put Washington’s coastal towns in hot water
Some communities in Washington are stepping up their efforts to prepare for higher seas.
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John Ryan @heyjohnryan.bsky.social · 02/10/2026
“What this El Niño event will give us is a glimpse of what our future will look like permanently if we fail to reduce carbon emissions and stop the continued warming of the planet“ — @michaelemann.bsky.social
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Rep. Jared Huffman @realjaredhuffman.bsky.social · 01/10/2026
Dems have serious power coming our way on 11/3 if we're smart enough to use it. "Now or never" threats from GOP, Big Oil, etc. are absurd. API & others will still want permitting reform in 3 mos. Ever-bluffing TACO Trump saying "this or nothing" is weak sauce. We can do better than pre-caving here.
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
Join me on Oct 6 at 7pm for “Can Scientists Help Fix Congress?”, a panel moderated by me. This discussion features a live inside look at the researchers taking their expertise to Congress. Event is hosted online via Zoom. us06web.zoom.us/webinar/regi...
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
and ironically, the A.I. crisis and climate crisis are inseparable, as @peterhotezmdphd.bsky.social & I underscore in "Science Under Siege"
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
yep---but needless to say, some outlets and journalists are doing all they can. Thanks for all that you and your colleagues do at @sfchronicle.com -- have been honored to write several op-eds for you folks!
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
Typically dissipates within a year. See our recent study: www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
Second of two events I'll be doing in the U.K. during the week of Oct 12 | I will be in conversation at the #OxfordUnion in Oxford, 5pm Thurs Oct 15: issuu.com/oxfordunion/...
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
First of two events I'll be doing in the U.K. during the week of Oct 12 | "Insight lecture" on #ScienceUnderSiege at the #CrickInstitute in London, 4pm Wed Oct 14: michaelmann.net/events/scien...
michaelmann.net
Science Under Siege (The Francis Crick Institute, London, UK) | Michael E. Mann
Science Under Siege   From pandemics to the climate crisis, humanity faces tougher challenges than ever. Whether it’s the health of our people or the health […]
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Feathered Stone @stonefeathers.bsky.social · 01/10/2026
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Aaron Rupar @atrupar.com · 01/10/2026
New in PN: Scenes from a personality cult "The ads are unambiguously illegal — & that’s the point. Again & again, this regime has broken the law not just to accomplish some immediate goal, but as a dominance display to say to everyone: Donald Trump does whatever he wants, & nobody can stop him."
publicnotice.co
Scenes from a personality cult
Trump’s taxpayer-funded agitprop is clearly illegal — and that’s the point.
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
" El Niño could put Washington’s coastal towns in hot water" by @heyjohnryan.bsky.social for @kuow.org Public Radio: www.kuow.org/environment/...
kuow.org
El Niño could put Washington’s coastal towns in hot water
Some communities in Washington are stepping up their efforts to prepare for higher seas.
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
This despite record global temperatures & extreme weather events. It didn't happen by accident. It's a predictable consequence of Trump/GOP assault on the media coupled w/ plutocratic capture of media outfits and platforms.
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YoteDan ❌ 👑 @heffbombs.bsky.social · 01/10/2026
If we don’t hear about it on the news and the government stops monitoring it…does that mean it doesn’t exist?
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
From the latest @yaleclimatecomm.bsky.social survey: "The percentage of registered voters who say they hear about global warming in the media dropped 11 percentage points from 2024 (30%) to 2025 (19%), which is the lowest it has been since the question was first asked in 2015." This is on you media!
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
This despite record global temperatures & extreme weather events. It didn't happen by accident. It's a predictable consequence of Trump/GOP assault on the media coupled w/ plutocratic capture of media outfits and platforms.
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
From the latest @yaleclimatecomm.bsky.social survey: "The percentage of registered voters who say they hear about global warming in the media dropped 11 percentage points from 2024 (30%) to 2025 (19%), which is the lowest it has been since the question was first asked in 2015." This is on you media!
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Rocky Kistner @therockyfiles.bsky.social · 01/10/2026
This looks good. Scientists can save us from political lies and deception by pursuing the truth and following the facts. We should be supporting their work, not the claptrap coming from self-interested politicians. How? Vote for politicians who believe in science. @michaelemann.bsky.social
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
probably not
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
" El Niño could put Washington’s coastal towns in hot water" by @heyjohnryan.bsky.social for @kuow.org Public Radio: www.kuow.org/environment/...
kuow.org
El Niño could put Washington’s coastal towns in hot water
Some communities in Washington are stepping up their efforts to prepare for higher seas.
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
well, there's both the upwelling and downwelling Kevin wave. I've seen them both, trust me.
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
thanks Aaron--yes, someone else alerted me to this. Will have to check it out.
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Aaron Huertas @aaronhuertas.bsky.social · 01/10/2026
Sometimes I feel like this podcast was made in a lab for me. (Wait that’s a different conspiracy theory.)
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
Well Kevin has lots of strong opinions. I agree with many--but certainly not all--of them.
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Michael E. Mann @michaelemann.bsky.social · 01/10/2026
yes, the Nino3.4 region was originally motivated by Trenberth and Barnston, as I understand it, by the teleconnections tied to anomalies in that specific region.
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