Graeme MacGilchrist
@gmacgilchrist.bsky.social
📤 302
📥 611
📝 89
Oceanographer and climate scientist. Senior research fellow at U. of St Andrews.
reposted by
Graeme MacGilchrist
George Monbiot
about 15 hours ago
4. We pay again and again for a failure to raise taxes. It’s a false economy, for which we suffer in multiple ways. Fair Taxation Saves Us Money.
15
819
104
It just seems like, if we really wanted to, we could have solved mass poverty by now.
1 day ago
0
0
0
This, from John, is fantastic. I never really caught that first wave of the internet, but I certainly lament the whirlpool it has become.
add a skeleton here at some point
9 days ago
0
3
0
reposted by
Graeme MacGilchrist
Nature Communications
9 days ago
Shankle et al. show how a better-
#Ventilated
#NorthPacific
could have reduced the
#ocean-carbon
upwelled in the
#SouthernOcean
, reducing outgassing and revealing a remote influence on
#SouthernOcean
biogeochemistry in
#GlacialTimes
.
#ice-ages
@earthscista.bsky.social
www.nature.com/articles/s41...
loading . . .
Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific - Nature Communications
A better-ventilated North Pacific could have reduced the carbon of water upwelled in the Southern Ocean, reducing outgassing and revealing a remote influence on Southern Ocean biogeochemistry in glaci...
https://www.nature.com/articles/s41467-025-63774-8
0
7
4
🗣️ Come one, come all! Read about connections between North Pacific Ocean ventilation and Southern Ocean carbon release 🌊 This is the first publication from Maddie Shankle’s PhD thesis, with more exciting work to follow!
add a skeleton here at some point
9 days ago
0
11
0
reposted by
Graeme MacGilchrist
Abigail Swann, PhD
11 days ago
Maybe the land carbon sink is weaker than we thought. Big implications: "A lower-than-expected land carbon sink would also imply that the land biosphere may be closer to transitioning from a net carbon sink to a net source than current models predict" Randerson et al.
www.science.org/doi/10.1126/...
loading . . .
The weak land carbon sink hypothesis
Satellite-derived time series of vegetation carbon do not support a strong Northern Hemisphere net land carbon sink.
https://www.science.org/doi/10.1126/sciadv.adr5489
1
79
34
reposted by
Graeme MacGilchrist
St Andrews Earth & Environmental Sciences
12 days ago
Last week, our 4th year Environmental Earth Science students were at Loch Etive, getting hands-on experience collecting data for investigating water column profiles & overturning events. Led by Drs James Barnet &
@gmacgilchrist.bsky.social
& supported back in the lab by
@oceanicandrea.bsky.social
.
0
5
2
reposted by
Graeme MacGilchrist
St Andrews Earth & Environmental Sciences
15 days ago
Meet the motley crew of the School of Earth and Environmental Sciences – ready to kick off the new academic year! 🌍👋 Special mention to our Head of School, Prof. Rob Wilson, who is cleverly disguised a a responsible adult (the T-shirt says it all) 😅🤦♂
www.st-andrews.ac.uk/earth-scienc...
0
14
4
reposted by
Graeme MacGilchrist
Moral incoherence is the zeitgeist of our age.
about 1 month ago
1
2
1
reposted by
Graeme MacGilchrist
Ben Sanderson
19 days ago
Our finalised paper on flat10MIP is finally up in GMD! This is the experimental protocol which allows for a simple, emissions-driven evaluation of TCRE, ZEC and climate reversibility in CMIP7. Thanks so much to all who ran these simulations as a proof of concept!
gmd.copernicus.org/articles/18/...
loading . . .
flat10MIP: an emissions-driven experiment to diagnose the climate response to positive, zero and negative CO2 emissions
Abstract. The proportionality between global mean temperature and cumulative emissions of CO2 predicted in Earth system models (ESMs) is the foundation of carbon budgeting frameworks. Deviations from ...
https://gmd.copernicus.org/articles/18/5699/2025/
0
55
20
reposted by
Graeme MacGilchrist
Zack Polanski
20 days ago
Nigel Farage is the biggest charlatan in British political history. And here's what his constitutents in Clacton really think:
loading . . .
146
3274
1521
reposted by
Graeme MacGilchrist
Mike Byrne
22 days ago
We had a fantastic research 'away day' at East Sands in St Andrews, where we discussed the future of extreme temperatures as part of GLOBAL-EX project. A lunchtime swim + cheese toasties on the beach was an added bonus!
@erc.europa.eu
@ukri.org
@earthscista.bsky.social
@uniofstandrews.bsky.social
0
15
3
reposted by
Graeme MacGilchrist
Stuart Turnbull-Dugarte
22 days ago
Radical right accommodation really does not work. New paper out with this exceptionally talented team
@katharinalawall.bsky.social
@robjohns75.bsky.social
@drjennings.bsky.social
@sarahobolt.bsky.social
@zachdickson.bsky.social
@danjdevine.bsky.social
&
@jack-bailey.co.uk
doi.org/10.31235/osf...
58
2173
1153
reposted by
Graeme MacGilchrist
A real honor to be able to help out with this. An absolute gutter ball that it is required. Kudos to
@andrewdessler.com
for exemplary leadership,
@bobkopp.net
for helping pull it together, and to all coauthors for resisting in our own way.
add a skeleton here at some point
24 days ago
1
36
11
International Conference on Paleoceanography
#ICP16
coming to
@uniofstandrews.bsky.social
@earthscista.bsky.social
next year 🫶🏼 🌊
add a skeleton here at some point
23 days ago
1
7
0
reposted by
Graeme MacGilchrist
NPR
24 days ago
More than 85 scientists say that a recent U.S. Department of Energy report is full of errors and misrepresents climate science.
loading . . .
Dozens of scientists find errors in a new Energy Department climate report
More than 85 scientists say that a recent U.S. Department of Energy report is full of errors and misrepresents climate science.
https://n.pr/4ne9uG0
349
8239
4076
reposted by
Graeme MacGilchrist
Peter Gleick
24 days ago
I've just submitted formal comments on the shoddy DoE Climate Working Group report. My focus is the failure to include any information on the extensive defense/intelligence assessments of the threats to US national security from
#climate
changes. A copy of my comments:
www.gleick.com/blog/comment...
loading . . .
Comments Submitted under Docket DOE-HQ-2025-0207 (on the DOE Climate Working Group 2025 Report “A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S."”
Submitted: September 2, 2025 by Dr. Peter H. Gleick, member, US National Academy of Sciences. The document “A Critical Review of Impacts of Greenhouse Gas Emissions on the U.S. Cli
https://www.gleick.com/blog/comments-submitted-under-docket-doe-hq-2025-0207-on-the-doe-climate-working
6
156
43
reposted by
Graeme MacGilchrist
Governor Jay Inslee
24 days ago
It’s great to see the scientific community blowing the whistle on Trump’s attempt to convince us that the forest fires, floods, heat strokes, and general misery caused by climate is somehow good for us.
www.nytimes.com/2025/09/02/c...
loading . . .
Scientists Denounce Trump Administration’s Climate Report
https://www.nytimes.com/2025/09/02/climate/climate-science-report-energy-department.html?smid=nytcore-ios-share&referringSource=articleShare
5
151
43
reposted by
Graeme MacGilchrist
Jens Daniel Müller
25 days ago
🌊 In 2023, the ocean carbon sink weakened for the first time in a record-hot year 🌡️🌎 Our new study in Nature Climate Change quantifies this unexpected decline and explains how it came about. 👇
doi.org/10.1038/s415...
loading . . .
Unexpected decline in the ocean carbon sink under record-high sea surface temperatures in 2023 - Nature Climate Change
The ocean carbon sink strengthened in previous warm El Niño years due to reduced CO2 outgassing in the tropics. Here the authors show that the ocean carbon sink declined in 2023 despite record-high se...
https://doi.org/10.1038/s41558-025-02380-4
4
112
59
reposted by
Graeme MacGilchrist
Brent Toderian
24 days ago
A group of 85 leading US climate scientists have compiled a withering review of a controversial Trump administration report written by fringe researchers that downplays the risks of the climate crisis, finding that the document is biased, riddled with errors and fails basic scientific credibility.
loading . . .
Trump team’s contentious climate report ‘makes a mockery of science’, experts say
Over 85 top climate specialists lambasted administration’s review, calling it a ‘shoddy mess’ that downplays risks
https://www.theguardian.com/us-news/2025/sep/02/trump-administration-climate-report
2
143
63
reposted by
Graeme MacGilchrist
Julia Simon
24 days ago
More than 85 scientists have issued a rebuttal to a recent Department of Energy report on climate change, finding it full of errors and misrepresentations. The Trump administration cited the DOE report in its proposal to roll back rules regulating climate pollution. More here ⬇️ on
@npr.org
loading . . .
Dozens of scientists find errors in a new Energy Department climate report
More than 85 scientists say that a recent U.S. Department of Energy report is full of errors and misrepresents climate science.
https://www.npr.org/2025/09/02/nx-s1-5521384/energy-report-scientists-climate-change?utm_campaign=npr&utm_term=nprnews&utm_medium=social&utm_source=bsky.app
4
79
31
reposted by
Graeme MacGilchrist
Union of Concerned Scientists
24 days ago
More than 85 scientific experts, brought together by the inimitable
@andrewdessler.com
, have found the DOE report “biased, full of errors, and not fit to inform policymaking.”
loading . . .
Climate_Experts_Review_of_DOE_CWG_Report.pdf
https://drive.google.com/file/d/1PwAR8I9YYmPhbQ6CRekHkroJGMbjbX7l/view
2
17
8
A real honor to be able to help out with this. An absolute gutter ball that it is required. Kudos to
@andrewdessler.com
for exemplary leadership,
@bobkopp.net
for helping pull it together, and to all coauthors for resisting in our own way.
add a skeleton here at some point
24 days ago
1
36
11
Wishing for the death of another human being is immoral. You can qualify it and justify it all you like, you can call it “pragmatic”, but the fundamental ethics remain. What matters is what we choose to foster in our own hearts.
25 days ago
0
0
0
On the eve of publication of our response to DOE’s “critical review”, organized by
@andrewdessler.com
, a reminder that the report falls way short even on the most basic of metrics. ✅ small fraction recent research cited ✅ 10% from non-peer reviewed sources ✅ 2 most cited authors are self-citations
add a skeleton here at some point
25 days ago
0
12
3
reposted by
Graeme MacGilchrist
I’m increasingly confident that these quotes are fully and intentionally fabricated, having searched extensively in both reports. The quotes are framed to suggest that the IPCC *concluded* that natural variability undermines attribution of anthropogenic climate change. FYI: It does not.
add a skeleton here at some point
28 days ago
1
4
2
reposted by
Graeme MacGilchrist
Robert Reich
26 days ago
“Jobs disappear and the markets cheer.” On Labor Day 30 years ago, I issued a warning the growing divide between workers and the super-rich. Watch.
youtu.be/8rW1kkAV-gw
loading . . .
Did Robert Reich Predict the Future in 1995?
YouTube video by Robert Reich
https://youtu.be/8rW1kkAV-gw
97
5148
1575
One of the more damning indictments on the global financial system is that “ethical investments” exist, thereby affirming that alternatives are explicitly blind to ethics.
27 days ago
0
1
1
I can’t help but feel that if everyone just focused on doing what is within their reach (and were clearsighted about how far that reach extends), we might bring society to a much different place.
add a skeleton here at some point
27 days ago
0
2
0
reposted by
Graeme MacGilchrist
Irene Quaile
27 days ago
“sometimes you have to just look out and see what’s within your reach. And this problem is within our reach, so we just see it as sort of doing our part.”
www.theguardian.com/environment/...
loading . . .
Scientists breathe new life into climate website after shutdown under Trump
Climate.gov, which went dark this summer, to be revived by volunteers as climate.us with expanded mission
https://www.theguardian.com/environment/2025/aug/30/climate-gov-website-trump?CMP=Share_AndroidApp_Other
1
6
5
I’m increasingly confident that these quotes are fully and intentionally fabricated, having searched extensively in both reports. The quotes are framed to suggest that the IPCC *concluded* that natural variability undermines attribution of anthropogenic climate change. FYI: It does not.
add a skeleton here at some point
28 days ago
1
4
2
Here we go! Helping out with this effort was inspiring and deflating in (almost) equal measure… inspiring tipped the scales.
add a skeleton here at some point
28 days ago
0
18
5
reposted by
Graeme MacGilchrist
Chris Colose
30 days ago
Was great to participate in this. Scientists were arguing up to the deadline about individual sentences, showing the difference in rigor when you care about accuracy, and how non-orthodoxy the “mainstream” actually is. But when comments are open for just 30 days it’s designed to be difficult.
add a skeleton here at some point
0
43
14
reposted by
Graeme MacGilchrist
Ben Sanderson
29 days ago
I never thought I would be spending my time explaining the scientific method to one of the most well funded research institutions in the history of humanity, but here we are. But it was so uplifting to see so many brilliant scientists provide context to every point in this thing. You guys rock.
add a skeleton here at some point
2
70
16
reposted by
Graeme MacGilchrist
Andrew Dessler
30 days ago
Our comment on the DOE CWG report is done. It tips the scales at 439 pages, approx. 3x longer than the DOE report. This is related to Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than that needed to produce it. Example: refuting one sentence.
11
368
167
reposted by
Graeme MacGilchrist
Paul Higgins
29 days ago
AMS released a statement on climate change today that points out five foundational flaws with the Department of Energy's 2025 climate report:
www.ametsoc.org/ams/about-am...
loading . . .
The Practice and Assessment of Science: Five Foundational Flaws in the Department of Energy's 2025 Climate Report
Adopted by the Executive Committee of the AMS Council on 27 August 2025
https://www.ametsoc.org/ams/about-ams/ams-statements/statements-of-the-ams-in-force/the-practice-and-assessment-of-science-five-foundational-flaws-in-the-department-of-energys-2025-climate-report/
0
57
30
reposted by
Graeme MacGilchrist
David Henig
about 1 month ago
Too many folk overthinking this. "Mass deportations are an abhorrence that a civilised country should not countenance". That's all. No need for logistical advice, the spirit of Churchill, or picking your favourite previous action down the slippery slope.
add a skeleton here at some point
9
520
188
Moral incoherence is the zeitgeist of our age.
about 1 month ago
1
2
1
reposted by
Graeme MacGilchrist
The Australia Institute
about 1 month ago
"People kind of think of centrism as evidence-based policy. 'We'll be sensible and we'll follow the evidence.’ "I hate to break it to you, evidence is often quite radical." Catch Richard Denniss on his tour for his new Vantage Point essay Dead Centre!
@richarddenniss.bsky.social
#auspol
loading . . .
9
243
105
reposted by
Graeme MacGilchrist
David Ho
about 1 month ago
This photo of a humpback whale entangled in fishing gear*. 🥺 It's shameful that the global plastic pollution treaty went nowhere. *from Oceanographic Magazine's Ocean Photographer of the Year competition. 🌊
www.theatlantic.com/photography/...
1
118
51
reposted by
Graeme MacGilchrist
AGU (American Geophysical Union)
about 1 month ago
Sign AGU’s letter to defend climate science. The Trump administration has proposed overturning the EPA’s endangerment finding — the science-based determination that greenhouse gases threaten public health.
loading . . .
Sign on to Defend EPA Peer-Reviewed Climate Science | WorkForms
From requests, feedback to data collection and more. Turn your insights into action with customizable WorkForms.
https://wkf.ms/4lRodWp
2
25
22
Welcoming anyone willing to fact check me on this — ironically, I don’t want to get it wrong.
add a skeleton here at some point
about 1 month ago
0
2
2
Made up quotes in the DOE CWG report? In Ch8, authors claim to quote IPCC AR5 and AR6 summary statements suggesting difficulty attributing climate change due to decadal variability. I suspected out-of-context, but I can't find the quotes (or anything like them) *at all*. Anyone know any better?
about 1 month ago
2
0
5
reposted by
Graeme MacGilchrist
Nahel Belgherze
about 1 month ago
Unbelievable footage from NOAA’s Hurricane Hunters inside the eye of Hurricane Erin. Simply incredible.
loading . . .
63
2766
1052
reposted by
Graeme MacGilchrist
Paris Marx
about 1 month ago
The worst thing about EVs is that automakers are using them as an opportunity to effectively turn cars into digital devices with all the worst aspects that come with it to extract more profit: data collection, screen first, subscription business models, etc.
add a skeleton here at some point
17
549
150
reposted by
Graeme MacGilchrist
Jason Sawle
about 1 month ago
How can England possibly be running out of water?
www.theguardian.com/news/ng-inte...
loading . . .
How can England possibly be running out of water?
While famously rainswept, climate crisis, population growth and profligacy mean the once unthinkable could be possible
https://www.theguardian.com/news/ng-interactive/2025/aug/17/how-can-england-possibly-be-running-out-of-water?CMP=share_btn_url
0
7
4
Independent and comprehensive.
add a skeleton here at some point
about 1 month ago
0
0
0
The current stance of the UK government is frankly beyond belief. It must change, and the more people willing to speak out against it the better.
add a skeleton here at some point
about 1 month ago
0
0
0
reposted by
Graeme MacGilchrist
Matt King
about 1 month ago
Wonderful interview with colleague
@profmattengland.bsky.social
talking about the science cuts in the US that will result in harm to us all
www.abc.net.au/listen/progr...
loading . . .
The Science Show - ABC listen
Is the US shooting itself in the foot, or shooting itself in the head? As Donald Trump removes funding for medical research, climate research and more, Matthew England reflects on how science will hel...
https://www.abc.net.au/listen/programs/scienceshow/the-science-show/105576226
1
7
2
reposted by
Graeme MacGilchrist
Me,
@codeandcurrents.bsky.social
, and ChatGPT had an excellent time vibe-coding our way to an assessment of the citations in the DOE's "critical review" of climate science. A wee 🧵 of highlights... 1/n
about 1 month ago
1
6
6
Load more
feeds!
log in