Gavin Schmidt
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climateofgavin.bsky.social
Gavin Schmidt
@climateofgavin.bsky.social
38K followers 790 following 1.6K 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 Gavin A. Schmidt

thedisproof.bsky.social
BONUS @thedisproof.bsky.social · 15h
If you enjoy seeing the debunking of climate change deniers and Trump's fossil fuel lobby groups then you might enjoy this channel www.youtube.com/@TheDisproof
TEACHING CLIMATE
On this channel you will find: Videos that debunk Human Induced Climate Change deniers. Videos that debunk climate action delayers. Videos that debunk misinformation from fossil fuel lobby groups. F...
www.youtube.com

climateofgavin.bsky.social
Gavin Schmidt @climateofgavin.bsky.social · 18h
It’s never been enough simply to make progress. Each generation has to work to reinforce the progress that has been made already and to fight against the shortsightedness of people who cannot look forward.
bachynski.bsky.social Kathleen Bachynski @bachynski.bsky.social · 1d
“The U.S. no longer has emission standards of any meaning,” said Margo T. Oge, who served as the E.P.A.’s top vehicle emissions regulator under three presidents and has since advised both automakers and environmental groups…

“Nothing. Zero,” she added. “Not many countries have zero.”
With Latest Rollback, the U.S. Essentially Has No Clean-Car Rules
www.nytimes.com

Reposted by Gavin A. Schmidt

micefearboggis.bsky.social
John Kennedy @micefearboggis.bsky.social · 1d
Reading articles like this, it occurs to me that the more we try to fix problems caused by replacing social norms and relationships with financial incentives, by replacing social norms and relationships with financial incentives, the worse things will get.

theconversation.com/the-peer-rev...
The peer review system is breaking down. Here’s how we can fix it
Peer review is so integral to the scholarly system that research would grind to a halt without it.
theconversation.com

Reposted by Heather Boushey, Du Toit, Gavin A. Schmidt , and 7 more

bachynski.bsky.social
Kathleen Bachynski @bachynski.bsky.social · 1d
“The U.S. no longer has emission standards of any meaning,” said Margo T. Oge, who served as the E.P.A.’s top vehicle emissions regulator under three presidents and has since advised both automakers and environmental groups…

“Nothing. Zero,” she added. “Not many countries have zero.”
With Latest Rollback, the U.S. Essentially Has No Clean-Car Rules
www.nytimes.com

climateofgavin.bsky.social
Gavin Schmidt @climateofgavin.bsky.social · 1d
Many governments did this for slavery. But it does have perverse incentives.

climateofgavin.bsky.social
Gavin Schmidt @climateofgavin.bsky.social · 2d
There is more to this story too. There were failures of communication, other flawed data which fooled people, and proof (from a submitted abstract) that the NASA team had noticed the hole before the Farman paper.

www.realclimate.org/index.php/ar...
RealClimate: What did NASA know? and when did they know it?
RealClimate: If you think you know why NASA did not report the discovery of the Antarctic polar ozone hole in 1984 before the publication of in May 1985, you might well be wrong. One of the most fun t...
www.realclimate.org

Reposted by Gavin A. Schmidt, John Mullahy, Daniel W. Drezner , and 3 more

petridishes.bsky.social
Alexandra Petri @petridishes.bsky.social · 2d
Trump Administration Announces That We Don’t Know Where The Sun Goes At Night
Trump Administration Announces That We Don’t Know Where the Sun Goes at Night
After deciding carbon dioxide does no harm, it was the logical next move.
www.theatlantic.com

Reposted by A. E. Dessler, Gavin A. Schmidt, John Fasullo , and 1 more

wclivestream.bsky.social
The Weather & Climate Livestream @wclivestream.bsky.social · 3d
Last December, weather and climate scientists sat down with us to tell us why they loved the National Center for Atmospheric Research, and why it benefits us all. Last night, the NSF began dismantling it. Listen to what they have to say, and why it's urgent that we #SaveNCAR wclivestream.com/act
We ❤️ NCAR - Let's Save It!
YouTube video by The Weather & Climate Livestream
www.youtube.com

Reposted by Jonathan A. Eisen, Nicholas A. Christakis, Axel Bruns , and 38 more

katharinehayhoe.com
Katharine Hayhoe @katharinehayhoe.com · 3d
Bluesky is the new science Twitter, new study by @whysharksmatter.bsky.social and Julia Wester concludes!

"Results show that for every reported professional benefit that scientists once gained from Twitter, scientists can now gain that benefit more effectively on Bluesky than on Twitter."
Scientists no Longer Find Twitter Professionally Useful, and have Switched to Bluesky
Synopsis. Social media has become widely used by the scientific community for a variety of professional uses, including networking and public outreach. For
academic.oup.com

Reposted by Gavin A. Schmidt

realclimate.org
RealClimate feed @realclimate.org · 3d
RealClimate: EPA’s final* ruling on CO2 www.realclimate.org/index.php/ar...
RealClimate: EPA’s final* ruling on CO2
RealClimate: The EPA has announced its final* ruling on the CO2 Endangerment Finding. *not even close to final. Notably, they have completely abandoned any reliance on the DOE's CWG report. The EPA is...
www.realclimate.org

Reposted by Gavin A. Schmidt, David Darmofal

booktweeting.bsky.social
Julia Is Moisturized, Unbothered, Not Asking for Money @booktweeting.bsky.social · 3d
“DHS is shutting down because it refuses to obey the law” is excellent framing
chrismurphyct.bsky.social Chris Murphy @chrismurphyct.bsky.social · 3d
DHS is shutting down because it refuses to obey the law. They are tear-gassing schools, killing American citizens, and disappearing legal immigrants. Democrats shouldn’t fund an out of control ICE.

Reposted by Gavin A. Schmidt, Gernot Wagner

michaelemann.bsky.social
Michael E. Mann @michaelemann.bsky.social · 3d
"Trump’s EPA can’t simply erase climate change — and we’ll all pay the price" | My op-ed with Bob Ward in @sfchronicle.com: www.sfchronicle.com/opinion/open...
Trump’s EPA can’t simply erase climate change — and we’ll all pay the price
On Thursday, the Environmental Protection Agency reversed its “endangerment finding," which found that greenhouse gases are a threat to human health.
www.sfchronicle.com

Reposted by Brigitte Nerlich, Gavin A. Schmidt

subletteweather.com
Sean Sublette @subletteweather.com · 3d
Today from my professional society, the @ametsoc.org:

"The repeal of the [EPA] Endangerment Finding does not alter the central unambiguous scientific conclusion: The climate change that people are causing threatens human lives and well-being."

Full statement:

www.ametsoc.org/ams/about-am...
A Response to the Decision to Rescind EPA's 2009 Endangerment Finding
The AMS is a global community committed to advancing weather, water, and climate science and service.
www.ametsoc.org

Reposted by Ben H. Ansell, Elizabeth Saunders, Rebecca Solnit , and 27 more

mikehixenbaugh.com
Mike Hixenbaugh @mikehixenbaugh.com · 3d
On Thanksgiving, the immigrant children held at the Dilley detention center gathered in the gym for what they thought was a holiday feast.

The kids salivated over a spread of turkey, sandwiches, pastries and pies, a family told me.

But the food wasn’t for detainees — it was for the staff.
On Nov. 16, a mental health counselor recorded in Kamilla’s medical records that her mother reported the girl had lost her appetite after being “served food that contained worms.” A week later, the couple said, children were told to gather in the gym for what they believed would be a Thanksgiving celebration. Excitement spread as families saw tables set with turkey, sandwiches, pastries and pies, they said. The children waited expectantly. But when a parent asked when the celebration would begin, Oksana said, staff told them the holiday meal was for employees, not detainees. The children, she said, watched despondently as the feast was packed away.

Reposted by Wim Thiery, Gavin A. Schmidt

afreedma.bsky.social
Andrew Freedman @afreedma.bsky.social · 3d
New: Trump admin moves to pull supercomputing center out of top weather and climate research center (NCAR) in Boulder, Colo. Part of its effort to "break up" the lab. www.cnn.com/2026/02/13/w...
Trump admin is pulling supercomputers out of key weather research center | CNN
A leading American research lab is slated to lose its critical supercomputing facility, according to a letter released Thursday by the National Science Foundation.
www.cnn.com

Reposted by Dorothy Bishop, Stefan Rahmstorf, Gavin A. Schmidt

andrewdessler.com
Andrew Dessler @andrewdessler.com · 3d
I've been getting a lot of requests from reporters for comments about the removal of the DOE Climate Working Group report from the EPA's repeal of the endangerment finding.

Here are some comments:
The EPA's decision not to rely on the DOE Climate Working Group report for the Endangerment Finding repeal is appropriate. The report’s fundamental flaws make it unsuitable as a basis for policy decisions. The report demonstrates systematic methodological failures. It relies heavily on cherry-picked studies while omitting contrary evidence from the peer-reviewed literature. Key findings are presented in ways that misrepresent what the underlying research actually shows. These are not minor errors—they are the kinds of problems that would render a scientific analysis indefensible in any rigorous review process, including judicial review. The process itself also failed to meet basic scientific standards. The report was not peer reviewed and certainly appears to be working backward from a pre-determined conclusion. The DOE received substantial public comments challenging the report’s conclusions after the public release but never responded to them. A credible scientific assessment requires engagement with contrary evidence and criticism, not silence. Notably, the Climate Working Group’s membership are the cream of the crop of climate contrarians. The DOE report therefore represents the best case against mainstream science. That they produced a report that is so lacking in credibility actually demonstrates how strong mainstream climate science actually is.

Reposted by Katharine Hayhoe, Scott C. Doney, A. E. Dessler , and 7 more

weatherwest.bsky.social
Daniel Swain @weatherwest.bsky.social · 3d
Great piece out today in Physics Today on historical origins, contemporary relevance, & fundamental irreplaceability of the National Center for Atmospheric Research, which remains at imminent risk of dismantling for partisan political reasons.
What the National Center for Atmospheric Research means to the atmospheric sciences
Born out of a time of great need for the federal government, NCAR plays a role with few analogues.
physicstoday.aip.org

Reposted by Richard S.J. Tol, A. E. Dessler, Gavin A. Schmidt , and 2 more

bobkopp.net
Bob Kopp @bobkopp.net · 3d
As expected, in the final rule, EPA's Endangerment Finding repeal backs down entirely from challenging the science, choosing to focus on statutory arguments regarding EPA's authority. Good work, everyone who contributed to the @andrewdessler.com review!
The EPA has considered these comments and, in this final action, is not finalizing the alternative climate science rationale and is not finalizing new findings by the Administrator with respect to global climate change concerns under CAA section 202(a)(1). The EPA does not rely on any specific critique of climate science as a necessary justification for this action. Given our conclusion that we lack legal authority to regulate in response to global climate change concerns under CAA section 202(a)(1), it would be unnecessary and inappropriate to resolve such questions in this regulatory context. The EPA includes this section to summarize major scientific themes commenters raised and to acknowledge that scientific research and debate about climate change will continue. This discussion does not endorse or reject any particular assessment, study, or comment letter in the docket with respect to assertions regarding global climate change science and has limited its responses to the bases being finalized in this final action. The EPA’s conclusion in this final action is limited to the legal determination that CAA section 202(a) does not provide the authority to regulate GHG emissions from new motor vehicles or new motor vehicle engines for the purpose of addressing global climate change concerns, irrespective of how ongoing scientific debates are ultimately resolved.

climateofgavin.bsky.social
Gavin Schmidt @climateofgavin.bsky.social · 3d
They crave status and approval from people they will never get it from, and so they build up shields (literally) to keep them in a bubble they think will keep the exterior world out. It doesn’t work of course.

Reposted by Gavin A. Schmidt

democracynow.org
Democracy Now! @democracynow.org · 3d
The House passed a bill this week — the SAVE America Act — that "combines a lot of the worst things that Republicans want to do with regards to voting, and it comes at a time when Trump appears dead set to try to interfere in the midterm elections," says @ariberman.bsky.social from @motherjones.com.

Reposted by Gavin A. Schmidt

mikerass.bsky.social
Michael Rass @mikerass.bsky.social · 3d
A look at Trump regime lies about the climate crisis as it revokes the key scientific endangerment finding
A look at false claims made by the Trump administration as it revokes a key scientific finding
While announcing that he was rolling back the Environmental Protection Agency’s 2009 endangerment finding, President Donald Trump and EPA Administrator Lee Zeldin made false claims regarding the…
apnews.com

Reposted by Gavin A. Schmidt, Fiona Armstrong

judah-grunstein.bsky.social
Judah Grunstein @judah-grunstein.bsky.social · 4d
African states should develop the energy sources they need to power their development. But the US has decided to sit this one out, and under Trump to jump in on the side of fossil fuels, whereas China is reaping the benefits of decarbonization. Self-own.
Africa leads growth in solar energy as demand spreads beyond traditional markets, report says
A report shows that Africa has emerged as the world's fastest-growing solar market even as global growth slowed last year, driven by a 60% surge in imports of solar panels from China.
apnews.com

Reposted by Gavin A. Schmidt

drtomharris.bsky.social
Dr Tom Harris @drtomharris.bsky.social · 4d
🤞 The 'temporary' rescinding of the Endangerment Finding will be as effective against the tide of global market penetration of EVs as deregulating the lead content of horseshoes would have been in 2010.

Reposted by Unai Pascual, Gavin L. Foster, Gavin A. Schmidt , and 3 more

edhawkins.org
Ed Hawkins @edhawkins.org · 4d
Updated climate indicators graphics, now including 2025

ed-hawkins.github.io/climate-visu...
Graphic showing changes in CO₂, global temperatures and global sea levels over the last 2025 years. Steep increases are visible after the industrial revolution.

Reposted by John Kennedy, Peter Thorne, Gavin A. Schmidt , and 1 more

lizk40.bsky.social
Elizabeth Kent @lizk40.bsky.social · 4d
The paper describing the new DCENT-I dataset of monthly global surface temperature since 1850 is just published.

rmets.onlinelibrary.wiley.com/doi/10.1002/...
DCENT‐I: A Globally Infilled Extension of the Dynamically Consistent ENsemble of Temperature Dataset
DCENT-I infills data gaps in DCENT, producing spatially coherent temperature fields (top) and a slightly higher GMST warming estimate (bottom). Top: December 1877 temperature anomalies (°C; 1961–1990...
rmets.onlinelibrary.wiley.com

Reposted by Shannon Vallor, Will Jennings, Gavin A. Schmidt , and 22 more

markhisted.org
Mark Histed @markhisted.org · 4d
In terms of what cures are being lost:

- Epstein-Barr virus is perhaps the major trigger for multiple sclerosis
- herpes simplex virus causes cold sores, genital herpes, infections in babies, deadly meningitis
- shingles virus causes an intensely painful disease
"Moderna's CEO announced the company will no longer invest in new Phase 3 vaccine trials for infectious diseases: 'You cannot make a return on investment if you don't have access to the U.S. market. Vaccines for Epstein-Barr virus, herpes, and shingles have been shelved.” 9:12 AM Feb 12, 2026 604.8K Views

Reposted by Gavin A. Schmidt

andrewdessler.com
Andrew Dessler @andrewdessler.com · 4d
EPA abandoned the DOE CWG report in the Endangerment Finding revocation.

It makes sense, though. It would have been destroyed in court. They violated so many rules in the production of that report.

Also, the May draft was never publicly released, so that’s also a big problem.
marvinbrown.bsky.social Marvin Brown @marvinbrown.bsky.social · 4d
From FN 8. "...in light of concerns raised by some commenters about the draft report authored by the U.S. Department of Energy’s Climate Working Group (CWG), the EPA is not relying on the May 27, 2025 CWG draft report"

Reposted by Richard S.J. Tol, Brendan Nyhan, Gavin A. Schmidt , and 13 more

themodsisyphus.bsky.social
Dheepa Sundaram, PhD (she/her) @themodsisyphus.bsky.social · 4d
CBP didn’t give her or anyone any water; she asked 3 times accg to other reports. CBP killed a 7yr old.

“8 hours after the girl & her father were taken into custody, she began having seizures & her body temperature was measured at 105.7 degrees by emergency medical technicians. shorturl.at/d2OTJ
7-Year-Old Migrant Girl Dies Of Dehydration And Shock In U.S. Border Patrol Custody
The girl's death underscores the crisis precipitated by large groups of families seeking asylum where there are inadequate facilities to detain them.
shorturl.at

climateofgavin.bsky.social
Gavin Schmidt @climateofgavin.bsky.social · 4d
Does anyone have a link to the actual final rule from EPA? I don’t see it somewhere obvious on the EPA site.

Reposted by Scott C. Doney, Gavin A. Schmidt, Julie L. Lockwood , and 9 more

katharinehayhoe.com
Katharine Hayhoe @katharinehayhoe.com · 4d
As I say here, there is no scientific justification to revoke the engagement finding. In fact, over the last 15+ yrs, the evidence of how climate change affects our health has only grown. Higher risk of allergies, dementia, fertility, heart disease, and death: that’s what’s on the line. @nature.org
There is No Scientific Justification to Revoke the Endangerment Finding
The U.S. EPA's decision to repeal the Endangerment Finding will limit the government's ability to regulate emissions of carbon dioxide and other greenhouse gases under the Clean Air Act.
www.nature.org