James Heydon
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jheydon.bsky.social
James Heydon
@jheydon.bsky.social
770 followers 820 following 35 posts
Associate Prof. in #Criminology at the Uni of Nottingham. Environmental harm, deviance and regulation. Currently focusing on #airquality and #airpollution.
Posts Replies Media Videos
Reposted by James Heydon
monkemma.bsky.social
Ok, let’s do this🙄

We’ll start with an explainer covering:

🕒What is a 15-minute city
🏫What on Earth is going on with Oxford
👽Where the conspiracy theories have come from

And then we’ll look at the Telegraph article

🧵
1/25
February 1, 2026 at 11:13 AM
Reposted by James Heydon
mumsforlungs.bsky.social
A reminder that we have an #AirPollution UK starter pack. Please use and share!
January 29, 2026 at 2:51 PM
jheydon.bsky.social
With new UK consultations open on air quality and domestic #woodburning, I am resharing an article I wrote for The Conversation on wood-smoke, PM2.5 and the limits of current regulation.

theconversation.com/wood-burning...

#publichealth #airquality #cleanairnight
Wood-burning stoves face new restrictions – but a loophole from Britain’s smog years is fuelling the problem
The UK wants cleaner air. But its rules are stuck in the age of smog.
theconversation.com
January 23, 2026 at 11:46 AM
jheydon.bsky.social
I remember @rcrohit7.bsky.social and I recommending this back in our 2020 indoor emissions study (doi.org/10.3390/atmo...). Feels like a lifetime ago, but great to see some action on the issue #cleanairnight #woodburning #airquality #airpollution
January 22, 2026 at 4:23 PM
Reposted by James Heydon
dpcarrington.bsky.social
ICYM - Wood-burning stoves face new restrictions – but a loophole from Britain’s smog years is fuelling the problem, writes @jheydon.bsky.social

#airpollution
theconversation.com/wood-burning...
Wood-burning stoves face new restrictions – but a loophole from Britain’s smog years is fuelling the problem
The UK wants cleaner air. But its rules are stuck in the age of smog.
theconversation.com
January 22, 2026 at 3:06 PM
Reposted by James Heydon
drgaryfuller.bsky.social
"Recognising that wood-burning stoves are not harmless appliances is the first step in reducing exposure" - @jheydon.bsky.social

Wood burning and cooking are big sources of indoor #airpollution.

My latest for @theguardian.com, in case you missed it.

www.theguardian.com/environment/...
Staying at home could leave you exposed to indoor air pollution, study reveals
Secondhand tobacco smoke and routine tasks such as operating the stove shown to be biggest emitters of indoor pollution in UK homes
www.theguardian.com
December 29, 2025 at 1:32 PM
Reposted by James Heydon
drgaryfuller.bsky.social
Being indoors can give us some protection from outdoor air pollution, but it also traps pollution produced inside our homes.

"Consider not lighting fires when children, or people with health conditions, are in the same room" @jheydon.bsky.social

Piece by me.

www.theguardian.com/environment/...
Staying at home could leave you exposed to indoor air pollution, study reveals
Secondhand tobacco smoke and routine tasks such as operating the stove shown to be biggest emitters of indoor pollution in UK homes
www.theguardian.com
December 26, 2025 at 9:51 AM
Reposted by James Heydon
janrosenow.bsky.social
NEW RESEARCH: UK heat pumps can perform far better than many think.

Our analysis of HeatPumpMonitor.org data shows well-designed systems achieve ~40% higher efficiency than past trials (SCoP 3.86 vs 2.81), cutting bills (~£224/yr) and emissions.

Open access: www.sciencedirect.com/science/arti...
December 18, 2025 at 11:30 AM
jheydon.bsky.social
As #woodburning starts up again and the nights draw in, it's worth sharing this again. A lot can be done between no regulation on the one hand and total bans on the other 🔥 🔥 🔥 #airquality #airpollution #particulatematter #emissions #autumn #winter #publichealth

airqualitynews.com/health/whats...
What’s to be done about the UK’s Wood Burning Stove Problem?
Dr James Heydon is an Assistant Professor in the School of Sociology and Social Policy at the University of Nottingham. His research centres on how formal and informal social controls can be used to a...
airqualitynews.com
October 27, 2025 at 9:52 AM
Reposted by James Heydon
naomioreskes.bsky.social
If you think mis- and disinformation is no big deal , read this: www.nature.com/articles/s41...
Relative engagement with sources of climate misinformation is growing across social media platforms - Scientific Reports
Scientific Reports - Relative engagement with sources of climate misinformation is growing across social media platforms
www.nature.com
October 24, 2025 at 7:41 AM
Reposted by James Heydon
olivia.science
Finally! 🤩 Our position piece: Against the Uncritical Adoption of 'AI' Technologies in Academia:
doi.org/10.5281/zeno...

We unpick the tech industry’s marketing, hype, & harm; and we argue for safeguarding higher education, critical
thinking, expertise, academic freedom, & scientific integrity.
1/n
Abstract: Under the banner of progress, products have been uncritically adopted or even imposed on users — in past centuries with tobacco and combustion engines, and in the 21st with social media. For these collective blunders, we now regret our involvement or apathy as scientists, and society struggles to put the genie back in the bottle. Currently, we are similarly entangled with artificial intelligence (AI) technology. For example, software updates are rolled out seamlessly and non-consensually, Microsoft Office is bundled with chatbots, and we, our students, and our employers have had no say, as it is not considered a valid position to reject AI technologies in our teaching and research. This is why in June 2025, we co-authored an Open Letter calling on our employers to reverse and rethink their stance on uncritically adopting AI technologies. In this position piece, we expound on why universities must take their role seriously toa) counter the technology industry’s marketing, hype, and harm; and to b) safeguard higher education, critical thinking, expertise, academic freedom, and scientific integrity. We include pointers to relevant work to further inform our colleagues. Figure 1. A cartoon set theoretic view on various terms (see Table 1) used when discussing the superset AI (black outline, hatched background): LLMs are in orange; ANNs are in magenta; generative models are in blue; and finally, chatbots are in green. Where these intersect, the colours reflect that, e.g. generative adversarial network (GAN) and Boltzmann machine (BM) models are in the purple subset because they are both generative and ANNs. In the case of proprietary closed source models, e.g. OpenAI’s ChatGPT and Apple’s Siri, we cannot verify their implementation and so academics can only make educated guesses (cf. Dingemanse 2025). Undefined terms used above: BERT (Devlin et al. 2019); AlexNet (Krizhevsky et al. 2017); A.L.I.C.E. (Wallace 2009); ELIZA (Weizenbaum 1966); Jabberwacky (Twist 2003); linear discriminant analysis (LDA); quadratic discriminant analysis (QDA). Table 1. Below some of the typical terminological disarray is untangled. Importantly, none of these terms are orthogonal nor do they exclusively pick out the types of products we may wish to critique or proscribe. Protecting the Ecosystem of Human Knowledge: Five Principles
September 6, 2025 at 8:13 AM
Reposted by James Heydon
drgaryfuller.bsky.social
Burning ban on deep peat comes into force at the end of the month.

Piece by Helena Horton.

www.theguardian.com/uk-news/2025...
Burning on England’s deep peat banned
New rules come into force from 30 September in order to restore habitats and reduce flooding
www.theguardian.com
September 9, 2025 at 8:33 PM
Reposted by James Heydon
globalecoguy.bsky.social
Yep.

"…clear that fossil-fuel companies, and their adjacent organizations, are the primary lobbyists for CCUS subsidies and that these subsidies benefit fossil-fuel companies at the expense of both taxpayers and the future health of our planet"

www.sciencedirect.com/science/arti...
Tracing sources of funds used to lobby the US government about carbon capture, use, and storage
Analysis of U.S. federal lobbying disclosures from 2005 through 2024 identifies the fossil fuel sector as the primary force behind a multipronged $954…
www.sciencedirect.com
September 6, 2025 at 5:00 PM
Reposted by James Heydon
drjennings.bsky.social
How did the ‘Island of Strangers’ speech impact Labour support? Negatively, especially among 2024 Labour voters.
September 5, 2025 at 9:08 AM
Reposted by James Heydon
ianwalker.bsky.social
"UK government trial of M365 Copilot finds no clear productivity boost"
www.theregister.com/2025/09/04/m...
M365 Copilot fails to up productivity in UK government trial
: AI tech shows promise writing emails or summarizing meetings. Don't bother with anything more complex
www.theregister.com
September 5, 2025 at 5:28 AM
Reposted by James Heydon
nicolacarr.bsky.social
Important information for anyone attending the European Society of Criminology in Athens and for members of ESC. Petition outlines serious concerns. Consider what you can do to support 👇👇 👇#eurocrim
amycortvriend.bsky.social Amy Cortvriend @amycortvriend.bsky.social · Aug 24
ESC colleagues: petition & important vote at the General Assembly. If not boycotting, vote. Or a 3rd option: use presentation time to discuss complicity and promote attendance at the GE?

I'm scheduled to present on asylum seekers & everyday resistance. It would be unethical if I didn't resist too
stevetombs.bsky.social Steve Tombs @stevetombs.bsky.social · Aug 24
... and if you still intend to attend, get behind the motion to be discussed and voted on at the General Assembly of the 25th Eurocrim Annual Conference, on 05.09.2025 at 13:00

criminologists4palestine.wordpress.com
August 30, 2025 at 11:03 AM
Reposted by James Heydon
science.org
The population directly exposed to wildland fires increased by 40% globally from 2002 to 2021, according to a new study in Science. https://scim.ag/4oUL1Y1
Increasing global human exposure to wildland fires despite declining burned area
Although half of Earth’s population resides in the wildland-urban interface, human exposure to wildland fires remains unquantified. We show that the population directly exposed to wildland fires incre...
scim.ag
August 29, 2025 at 4:27 PM
Reposted by James Heydon
cleanairlondon.bsky.social
Top story: #Beddington Incinerator broke #AirPollution limits 916 times www.bbc.com/news/article...
Croydon incinerator broke pollution limits 916 times in two years
The Environment Agency are currently considering enforcement action against the operator, Viridor.
www.bbc.com
August 28, 2025 at 1:02 PM
Reposted by James Heydon
alasdairmsmith.bsky.social
Perceptions have real effects

www.kcl.ac.uk/policy-insti...
August 27, 2025 at 10:17 AM
Reposted by James Heydon
iansociologo.bsky.social
Many measurements of AI's carbon footprint just focus on data centers. But this narrow approach obscures other emissions that AI facilitates.

If Shell is using AI to support fossil fuel extraction and burning, then why not include that in AI's carbon footprint?

www.shell.com/what-we-do/d...
Artificial Intelligence | Shell Global
Find out how Shell works with Artificial Intelligence: from machine learning to computer vision, from deep learning and virtual assistants to robotics.
www.shell.com
August 23, 2025 at 5:13 PM
Reposted by James Heydon
kevinclimate.bsky.social
New piece on Carbon Colonialism, net-zero nonsense, and how the UK Government's climate advisors (and many experts) shy away from speaking truth to power. We need a fundamental reboot of climate policy; - physics doesn't care about political sensibilities. theconversation.com/the-uks-year...
The UK’s year of climate U-turns exposes a deeper failure
Breaking free of the dangerous pretence that current efforts suffice demands a fundamental rethink of the UK’s climate policy consensus.
theconversation.com
August 22, 2025 at 9:28 AM
Reposted by James Heydon
benpatrickwill.bsky.social
Let's be clear: all the AI in edtech stuff (Canvas, Blackboard, Grammarly, Duolingo, OpenAI, the rest) is all about the "lock-in" - locking in students as subscribers or institutions via long-term license agreements for value generation. Is there good pedagogic evidence for it? No.
August 22, 2025 at 8:46 PM
Reposted by James Heydon
drgaryfuller.bsky.social
“More pollutants are being released ... from rockets and satellites than ever before.

We’re in uncharted territory, as humans have never added this much pollution to the upper layers of the atmosphere."

- Prof Eloise Marais @ucl.ac.uk

Piece by me

www.theguardian.com/environment/...
Scientists call for action to address air pollution from space launches
Satellite mega-constellation missions behind threefold increase in emissions of climate-altering soot and CO2
www.theguardian.com
August 22, 2025 at 7:22 AM
Reposted by James Heydon
monicapons.bsky.social
"The Paradox of Saving Fish by Eating Them: Food Crime at the Intersection of Green Criminology and Political Ecology" is out!

I’m thrilled I got to work with the lovely @guillemrubio.bsky.social—I genuinely enjoyed and had fun working on the manuscript together 🧡
link.springer.com/article/10.1...
The Paradox of Saving Fish by Eating them: Food Crime at the Intersection of Green Criminology and Political Ecology - European Journal on Criminal Policy and Research
Aquaculture is framed as a key contributor to global food security and sustainable food production. Yet, in its industrial form, it involves several harmful practices that negatively impact food secur...
link.springer.com
August 13, 2025 at 1:00 PM
Reposted by James Heydon
rosaleenduffy.bsky.social
Really important article examining #harms from @monicapons.bsky.social & @guillemrubio.bsky.social comparing #AtlanticSalmon & #EuropeanEel in #Aquaculture. The narrative of ecological sustainability & reduced pressure on ‘wild’ fish needs a fundamental rethink #PoliticalEcology #GreenCriminology ⬇️
August 14, 2025 at 10:02 AM