Gavin A. Schmidt | Lightnews

Gavin Schmidt

@climateofgavin.bsky.social

37K followers 780 following 1.4K posts

Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.

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Gavin A. Schmidt is a British climatologist, climate modeler and Director of the NASA Goddard Institute for Space Studies (GISS) in New York, and co-founder of the climate science blog RealClimate. .. more

Environmental science 50%

Geology 21%

Posts Replies Media Videos

Reposted by Katharine Hayhoe, Lisa W. Fazio, Gavin A. Schmidt , and 6 more Katharine Hayhoe, Lisa W. Fazio, Gavin A. Schmidt, Simon J. Greenhill, Smith, Alan Richardson, Silvia Secchi, Dana R. Fisher, Larry W. Hunter

Virginia Gewin @virginiagewin.bsky.social · 3h

Scientists: have you been the target of an online harassment campaign, doxxing, or weaponized FOIA requests? I'd like to talk to you about steps you had to take to protect your digital security for an upcoming Nature story. (You can be anonymous if necessary.)

RTs appreciated.

Reposted by Gavin A. Schmidt

William Shakespeare @shakespeare.lol · 6h

Away with the dotard, to the jail with him!

Gavin Schmidt @climateofgavin.bsky.social · 6h

We got a Charlie earlier this year - game changing. Even Kate comes over to watch me boil water and bake at the same time!

Reposted by Gavin A. Schmidt

The New York Times @nytimes.com · 9h

Breaking News: The CDC quietly appointed Dr. Ralph Lee Abraham, who has been critical of vaccines, as its second in command. During the Covid pandemic, he promoted discredited treatments like ivermectin and, as Louisiana’s surgeon general, halted the state’s mass vaccination campaign.

C.D.C. Quietly Appoints Doctor Critical of Vaccines as Second in Command

During the Covid-19 pandemic, Dr. Ralph Lee Abraham promoted discredited treatments like ivermectin and, as Louisiana’s surgeon general, halted the state’s mass vaccination campaign.

trib.al

Reposted by Jonathan A. Eisen, Gavin A. Schmidt, Tom Shakespeare , and 2 more Jonathan A. Eisen, Gavin A. Schmidt, Tom Shakespeare, Rosemary A. Joyce, Smith

Alt CDC (they/them) @altcdc.altgov.info · 11h

1/ ⚠️ Breaking: At CDC, we've been told the US Government will not officially commemorate World AIDS Day this year. No explanation given.

Photograph of a printed guidance memo stating that the U.S. Government will not be commemorating World AIDS Day this year. Key points include: USG funds should not be used for related events, personnel should refrain from public promotion via social media or other channels, and CDC and other USG staff may attend local events but cannot speak or promote attendance. The memo notes this guidance supersedes previous blanket approval and may require adjustments to planned activities.

Reposted by Gavin A. Schmidt, Rosemary A. Joyce, R. M. Wilson , and 1 more Gavin A. Schmidt, Rosemary A. Joyce, R. M. Wilson, Carly D. Ziter

Katie Mack @astrokatie.com · 16h

Gender-affirming care saves lives

Erin Reed @erininthemorning.com · 1d

1. A landmark study was just published in The Journal of Pediatrics.

It found a 68% reduction in suicidality for trans youth getting HRT.

It also found only 7 of more than 400 stopped taking HRT... and of those that did, 4 still identified as gender-diverse.

Transgender care saves lives.

Study In The Journal Of Pediatrics Finds Trans Youth Care Lowers Suicidality, Few Detransition

The groundbreaking study found that suicidality dropped for transgender youth receiving hormone therapy by nearly 70%, with only 7 patients of 432 discontinuing treatment.

www.erininthemorning.com

Reposted by Jonathan Portes, Cas Mudde, Ben H. Ansell , and 68 more Jonathan Portes, Cas Mudde, Ben H. Ansell, Richard S.J. Tol, Dorothy Bishop, David M. Farrell, Will Jennings, Stefan Rahmstorf, David N. Thomas, Gavin A. Schmidt, Patrick A. Jansen, John Horgan, Steve Peers, Andrew Scott, Colin Murray, Mark D. White, Huw Price, Rosemary A. Joyce, Dirk Pilat, Charles West, Martijn W. Hesselink, Chris Hanretty, Simon Wren‐Lewis, Alison Phipps, Mary Corcoran, Anand Menon, Michelle Everson, Rebecca Tushnet, Ben Worthy, David R. Miller, Robert Wolfe, Gary D. Rawnsley, Aileen McHarg, Jacob T. Levy, Simon Glendinning, Scott A. Imberman, Julie Cupples, Lyndsey Stonebridge, Stephen Ryan, Samantha Brennan, Jonathan Birch, Anne Norton, Hubert Zimmermann, Leo McCann, Manuel Puppis, Graeme Warren, David Bartram, Lisa Diedrich, Brian Doucet, Ann Bartow, Stuart White, Pauline Stafford, Clayton Littlejohn, Rense Corten, Greg Linden, Jack Stilgoe, Jon Dean, Klaus Oschema, Christina Pagel, Daxton R. Stewart, Rune Møller Stahl, Olivier Mannoni, Camille Lefebvre, Aviel Roshwald, Colin Talbot, Tarik Abou‐Chadi, Nathan P. Kalmoe, Jeroen Van Bouwel, David Spurrett, François Guesnet, Speranţa Dumitru

Rutger Bregman @rutgerbregman.com · 18h

I wish I didn’t have to share this. But the BBC has decided to censor my first Reith Lecture.

They deleted the line in which I describe Donald Trump as “the most openly corrupt president in American history.” /1

Reposted by Gavin A. Schmidt, Rosemary A. Joyce, Lesley A. Hall , and 7 more Gavin A. Schmidt, Rosemary A. Joyce, Lesley A. Hall, Melanie C. Green, R. M. Wilson, Erin O’Donnell, Nelson Flores, Karen O’Leary, Anand Swaminathan, Carly D. Ziter

Erin Reed @erininthemorning.com · 1d

Study In The Journal Of Pediatrics Finds Trans Youth Care Lowers Suicidality, Few Detransition

The groundbreaking study found that suicidality dropped for transgender youth receiving hormone therapy by nearly 70%, with only 7 patients of 432 discontinuing treatment.

www.erininthemorning.com

Gavin Schmidt @climateofgavin.bsky.social · 1d

Yes. Same concept

Reposted by Gavin A. Schmidt

Robert Simmon @rsimmon.bsky.social · 1d

Great view of the eruption of Hayli Gubbi Volcano from Aqua MODIS yesterday afternoon. Imagery from NASA WorldView: go.nasa.gov/4p0ivDW

🌋🛰️

True color satellite image of the plume from the explosive eruption of Hayli Gubbi volcano on November 23, 2025. The brown ash plume stretches from the Danakil Depression in Ethiopia, eastward across the Red Sea to cover parts of Saudi Arabia and Yemen.

Gavin Schmidt @climateofgavin.bsky.social · 1d

Similarly, it's different from weather forescasting - even on seasonal time scales - which does provide information on climatological risks (i.e. the probability of extremes).

Gavin Schmidt @climateofgavin.bsky.social · 1d

It is motivated by the (obvious) non-stationarity in observations and the need to predict risks for today, not for 20 or 30 years ago. This is distinguishable as well as climate trends going forward 20 or 30 years whch depend on future emissions.

Gavin Schmidt @climateofgavin.bsky.social · 1d

This paper did not get that much attention when it came out, but it deserves more. Welcome to "Climate Nowcasting" as a new term in the lexicon...

iopscience.iop.org/article/10.1...

Gavin Schmidt @climateofgavin.bsky.social · 1d

big if.

Reposted by Gavin A. Schmidt

Michigan Adoptee Rights Coalition @michiganadoptees.bsky.social · 1d

A mother shares the terrifying reality that her internationally adopted son, raised in the U.S. since childhood, could be detained or deported by ICE because he was never granted citizenship. 35-70k adoptees remain in this legal limbo. Urge Congress to pass the PAAF Act. 🥚

I'm A U.S. Citizen. I'm Terrified My Adopted Son Will Be Snatched By ICE Due To A Heartbreaking Loophole.

"I lie awake at night worried that he’ll be snatched off the street and taken to a nightmarish prison in some other country, and I’ll never see him again."

www.huffpost.com

Gavin Schmidt @climateofgavin.bsky.social · 1d

i.e. what gets covered, what doesn't. Who gets to speak to large audiences and who doesn't. The view from nowhere. Balance vs. truth. etc.

Gavin Schmidt @climateofgavin.bsky.social · 1d

The ethical lapses here are huge, but I might take issue with Sullivan's conclusion that it's this kind of thing that trashes the media's reputation w/the public. None of these folks are household names (Bluesky notoriety doesn't count). The bigger issues are still systematic, not personal.

Gavin Schmidt @climateofgavin.bsky.social · 1d

This seems a bit hand-wavy. There’s no calculation here related to ECS and I’m unaware of one that relates the magnitude of the IMO-related aerosol reduction to ECS in any simple way. There isn’t even a radiative forcing estimate that could be plugged into the assessment we did earlier this yr.

Reposted by Gavin A. Schmidt

Dr Tom Harris @drtomharris.bsky.social · 1d

A second opportunity to examine the cloud reduction effects from shipping fuel pollution measures has revealed that the 80% cut in sulphur emissions reduces cloud droplet formation by 67%.
acp.copernicus.org/articles/25/...

#aerosols #climatechange #clouds #IMO2020 #ECS

acp.copernicus.org

Dave Vetter @davidrvetter.bsky.social · 1d

Still reeling from the Stanford report on Brexit. Reduced GDP by up to 8% and investment by as much as 18%. The UK Treasury would have £40 billion more each year if Britain had remained in the EU. Devastating self-immolation.

The Economic Impact of Brexit

Other

siepr.stanford.edu

Reposted by Gavin A. Schmidt, Suzanne de Cheveigné

Melaine Le Roy @subfossilguy.bsky.social · 2d

Franz Josef Glacier - Kā Roimata o Hine Hukatere
ca 1867 | 2022

Impressive comparison between the first known photograph taken of one of the most iconic NZ glaciers and current situation! 🧊🔥

The rock on the right is Sentinel Rock, one of the roches moutonnées in the glacier forefield
1/

Reposted by Gavin A. Schmidt, Martin Paul Eve, Lesley A. Hall , and 8 more Gavin A. Schmidt, Martin Paul Eve, Lesley A. Hall, R. M. Wilson, Stephen D. Murphy, Andréas Nilsson, Urška Demšar, Simon Lester, Jason A. Heppler, Clark Gray, Peter Jacobs

Robert “The Baste God” McNees @mcnees.bsky.social · 3d

Journalist challenge: Use “Machine Learning” when you mean machine learning and “LLM” when you mean LLM. Ditch “AI” as a catch-all term, it’s not useful for readers and it helps companies trying to confuse the public by obscuring the roles played by different technologies. 🧪

Reposted by Kim L. Scheppele, Brendan Nyhan, Gavin A. Schmidt , and 2 more Kim L. Scheppele, Brendan Nyhan, Gavin A. Schmidt, Daniel W. Drezner, Michael Jones‐Correa

Ryan Goodman @rgoodlaw.bsky.social · 3d

On the patently unlawful boat strikes

It's hard for USGs to claim ‘mistake of law’ or ‘advice of counsel’ – when they’re firing lawyers who wouldn't sign off on the strikes.

WaPo's new revelations on firings or removals:

1) CIA General Counsel
2) NSC Legal Adviser
3) CIA Mission Center’s lawyer
🧵

White House blew past legal concerns in deadly strikes on drug boats

The Trump administration sidestepped skeptical lawyers across national security agencies as it pursued a military campaign against alleged narcotraffickers, officials say.

www.washingtonpost.com

Reposted by A. E. Dessler, Gavin A. Schmidt, Stephen D. Murphy

Alan Gerard @wxmanms1.bsky.social · 4d

TX Hill Country floods have been in the news as more victims' families file lawsuits. I've had a lot of opportunity to examine this event - including visiting Kerrville - and share my perspectives on what I've learned & what we can do to keep this from happening again. https://tinyurl.com/2yyzza2y

BalancedWx Special: Revisiting the Texas Hill Country flash flood catastrophe

Recent New York Times article provides details about events at Camp Mystic

tinyurl.com

Gavin Schmidt @climateofgavin.bsky.social · 4d

It happens more than you might think!

Gavin Schmidt @climateofgavin.bsky.social · 4d

These people were/are idiots. Everything was just a vibe or a sound bite and they never bothered to ask people who might have known better.

Gavin Schmidt @climateofgavin.bsky.social · 4d

I think you’ve mixed up your Gavin’s…

Gavin Schmidt @climateofgavin.bsky.social · 5d

This is bad. How can any university hire people, build facilities, make any plans, if the funding can be arbitrarily removed on a whim from an agency? This goes far beyond currently disfavored topics.

Scott Delaney @scott-delaney.bsky.social · 6d

Update on a significant development NIH grant terms.

On 10/1, a change to grant making regs went into effect that gives NIH more power to terminate grants for policy reasons.

But to use this power, new grant terms must include specific language. See @aniloza.bsky.social w/ the story from July.

1/

HHS devises legal playbook for future grant terminations, internal memo shows

Exclusive: HHS devises a legal playbook for future research grant terminations, an internal memo shows.

www.statnews.com

Reposted by Gavin A. Schmidt, Martin Lenz

Brian Bilston @brianbilston.bsky.social · 5d

It’s World Philosophy Day today so here’s a poem in celebration of that.

Nihilism Means Nothing to Me

Hegel, when you left me,
you put me through the mill.
I kant think clearly anymore –
your marx are on me still.

The hobbestacles are everywhere.
Unlocke your door and be my guide.
Life is dull when you’re not arendt,
I nietzsche by my side.

You said I bourdieu senseless.
You claimed I drove you nuts.
But I adorno other –
My head spinoza much

The rawls of love I just don’t get,
I don’t know where to sartre.
I plato win but always lose –
come back, exhume my heartre.

Brian Bilston

Reposted by Gavin A. Schmidt, David Johnson, Rosemary A. Joyce , and 9 more Gavin A. Schmidt, David Johnson, Rosemary A. Joyce, Lesley A. Hall, Juan Cole, Janet Murray, Silvia Secchi, R. M. Wilson, Brooke Harrington, Karen O’Leary, Olúfẹ́mi Táíwò, David Darmofal

Katie Mack @astrokatie.com · 5d

Can’t believe the whole country has to suffer through the return of Dickensian childhood diseases because the worst, most ignorant attention-demanders decided other people’s expertise makes them feel bad

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