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Nick Souter

@nicksouter

Postdoctoral Research Fellow at University of Sussex, studying ways of measuring the carbon footprint of fMRI data preprocessing and analysis 🌱🧠

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04.09.2023
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Latest posts by Nick Souter @nicksouter

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And another thank you to the whole @bhdonostia.bsky.social organising team for inviting me to speak about the carbon footprint of neuroimaging computing!

(I think the subtitles shown on the screen here were from people all over the room, not me just mumbling incoherently)

22.11.2025 11:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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A massive thank you to the team who actually did the hard work of putting this together:

MONIKA UTROSA
CLÉMENTINE LÉVY-FIDEL
FÁBIO LOBATO
GABRIEL PIΕ VEJC

Everything we developed is available open source on GitHub: github.com/NickESouter/...

22.11.2025 11:12 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

So, a CALL TO ACTION:

Are you currently in an institution where the energy usage of various MRI sequences is already being recorded? Are you in a position to start doing this? Please get in touch! We’d love to source some more representative input data and understand which factors matter most

22.11.2025 11:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

A caveat, we’ve taken energy consumption metrics from specifications provided by scanner manufacturers. The numbers generated as output seem to be a pretty big underestimation of the impact we’d expect from fMRI research scanning. The numbers are probably more relevant to clinical scanning…

22.11.2025 11:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The tool takes input information including:

🟒 Field strength
🟒 Scanner model
🟒 Country in which data was collected
🟒 Year of data collection
🟒 Sample size

From this, it generates an environmental impact statement which can be popped into a grant application or journal paper

22.11.2025 11:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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This week I attended my first ever hackathon with @bhdonostia.bsky.social! We put together a functioning dashboard to estimate the carbon footprint of MRI data collection 🧠

You can access the neuro-impact-calculator here: nicksouter.shinyapps.io/neuro-impact...

(Not yet optimised for phones) 🧡

22.11.2025 11:12 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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We just wrapped an excellent keynote from @nicksouter.bsky.social on reducing the carbon footprint of research computing. A powerful reminder that scientific progress and sustainability can β€” and should β€” go hand in hand! πŸŒπŸ’‘ #BHDonostia2025 #sustainability #GreenScience

20.11.2025 11:57 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

‼️ If you're interested in getting involved with the SEA-SIG, we are accepting nominations for the roles of Chair, Secretary, and Treasurer until OCTOBER 5! ‼️

✨ πŸ’« 🌍 🌱 πŸƒ

01.10.2025 03:38 πŸ‘ 3 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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πŸ—“οΈ Only ONE WEEK to register for the OHBM Virtual Satellite Meeting, hosted with the SEA-SIG @ohbmenvironment.bsky.social! There will be an educational course, 3 symposia, and a can’t-miss keynote from Dr. Michael Breakspear! You won’t want to miss it!

28.08.2025 11:01 πŸ‘ 4 πŸ” 4 πŸ’¬ 1 πŸ“Œ 1
Photo of Cambridge River and view over King's College with a group of people punting.

Photo of Cambridge River and view over King's College with a group of people punting.

Photo of the Heart and Lungs Research Institute on Cambridge Biomedical Campus. The building is bronze-colour and in front of a pond.

Photo of the Heart and Lungs Research Institute on Cambridge Biomedical Campus. The building is bronze-colour and in front of a pond.

πŸ“£ Interested in the environmental (un)sustainability of AI (and how to support positive change)? Or know someone who is? I have an open position for a postdoctoral researcher to join my group in Cambridge, UK 🌱

🚨Closing June 5th

www.jobs.cam.ac.uk/job/51255/

Topics below πŸ‘‡

#AcademicSky #GreenSky

09.05.2025 12:36 πŸ‘ 20 πŸ” 16 πŸ’¬ 1 πŸ“Œ 1
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Save the date ! Co-organized with @inserm.bsky.social bLORIER, @nicksouter.bsky.social from @sussexfss.bsky.social will talk about Β« How to reduce the carbon footprint of your research computing? Β»
tinyurl.com/4hck9xbh
An event affiliated with @ohbmenvironment.bsky.social !

08.01.2025 21:08 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 2

Som staggering statistics from @ourworldindata.org

07.12.2024 11:38 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Are you a neuroscientist interested in sustainability, but don't know who to follow? πŸ€”

You're in luck! Here's a starter pack of neuroscientists who post about climate, and researchers who work in the intersection of neuro/psych and climate change!

🌱Msg if you want to be added!

go.bsky.app/E1iW12T

26.11.2024 16:39 πŸ‘ 22 πŸ” 12 πŸ’¬ 5 πŸ“Œ 5
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Ten recommendations for reducing the carbon footprint of research computing in human neuroimaging Abstract. Given that scientific practices contribute to the climate crisis, scientists should reflect on the planetary impact of their work. Research computing can have a substantial carbon footprint ...

Weekends are a great time to let ideas percolate, so why not give @nicksouter.bsky.social's paper on "10 recommendations for reducing the carbon footprint of neuroimaging research" a read and let it sink in while you head outside and get some fresh air?

direct.mit.edu/imag/article...

15.11.2024 23:10 πŸ‘ 8 πŸ” 5 πŸ’¬ 0 πŸ“Œ 1
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Climate crisis and ecological emergency: Why they concern (neuro)scientists, and what we can do - Charlotte L. Rae, Martin Farley, Kate J. Jeffery, Anne E. Urai, 2022 Our planet is experiencing severe and accelerating climate and ecological breakdown caused by human activity. As professional scientists, we are better placed t...

What is the relationship between neuroscience and climate change? At first these two topics can seem very distinct, but this article by Rae et al. makes a very compelling case for why we should incorporate environmental awareness into our research practices.

journals.sagepub.com/doi/10.1177/...

14.11.2024 16:17 πŸ‘ 6 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
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Interested in joining us? The Green Algorithms project promotes environmentally sustainable computational science through an online calculator, training material and other tools.

🚨We're recruiting! Interested in making science and computing more environmentally friendly? Now's the time!

Very excited to build a research group at Cambridge Uni to expand our Green Algorithms work thanks to the support of the Wellcome Trust
www.green-algorithms.org/join-us
#AcademicSky #SciSky

11.11.2024 17:15 πŸ‘ 28 πŸ” 20 πŸ’¬ 3 πŸ“Œ 5

‼️ NEW PAPER ALERT ‼️

@nicksouter.bsky.social et al. (including many of our SEA-SIG members) demonstrate the environmental impact of different fMRIprep preprocessing choices, and make recommendations for minimizing carbon emissions of your pipeline!

onlinelibrary.wiley.com/doi/10.1002/...

28.08.2024 15:45 πŸ‘ 3 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
Upcoming SIG elections 2024 – OHBM SEA-SIG

Are you looking to get involved with like-minded neuroimagers to make our field more sustainable?

Nominate yourself to be the new Chair, Secretary, or Treasurer of the SEA-SIG in our 2024 elections! Nominations accepted from August 15-September 15!

ohbm-environment.org/upcoming-sig...

11.08.2024 21:28 πŸ‘ 3 πŸ” 4 πŸ’¬ 0 πŸ“Œ 1
TikTok - Make Your Day

In this short 'PosterByte' video made for the British Neuroscience Association 2024 Members' Meeting, I discuss our recent work on the carbon footprint of neuroscience data processing 🌱🧠πŸ–₯️

shorturl.at/aguWY

#BNAMembersMeeting2024

25.04.2024 09:48 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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How to talk about climate change and the problem with doomerism Issue 107: We conducted one of the largest experiments ever on climate change behavior β€” with advice from MythBusters' Jamie Hyneman

The Problem with Doomerism:

Critics are right that doom and gloom can demoralize people into inaction.

We found that negative messages increase social media sharing, but had no effect on policy support or climate beliefs & even backfired for effortful action: powerofus.substack.com/p/how-to-tal...

27.02.2024 14:01 πŸ‘ 13 πŸ” 6 πŸ’¬ 0 πŸ“Œ 1

Big thanks to @loiclnlg.bsky.social, Gabby Samuel, Chris Racey, @lincoln81.bsky.social, Nikhil Bhagwat, Raghav Selvan, and Charlotte Rae for all their work on this paper!

08.02.2024 10:59 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

10. Talk about greener computing

Discussing the carbon footprint of data processing within your neuroimaging community will make it easier to think seriously about this issue. This will help in embedding sustainable ideas into standard practice 🌱

08.02.2024 10:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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9. Use existing data

Running analysis on previously collected and preprocessed data is a great way to test hypotheses without using additional energy to preprocess it yourself. We provide a table describing different open access datasets.

08.02.2024 10:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

8. Reflect on what needs to be shared

It's good practice to share all raw neuroimaging data on platforms like OpenNeuro. But this storage still has a carbon footprint. Consider whether just sharing preprocessed files would be enough to allow others to make use of your data.

08.02.2024 10:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Homepage The European High Performance Computing Joint Undertaking (EuroHPC JU) is a joint initiative between the EU, European countries and private partners to develop a World Class Supercomputing Ecosystem in Europe.

7. Push for publicly owned centralised data storage

Large centralised data centres tend to be more efficient, but this often means relying on big tech comapnies to host data. Alternatives like EuropHPC JU may allow storage that is efficient & sustainable:

eurohpc-ju.europa.eu/index_en

08.02.2024 10:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Tape Storage Might Be Computing’s Climate Savior Tape media generates just 3 percent of the carbon dioxide that hard disks do

6. Plan your long-term storage

For files you do need to keep, have a data management plan in place. This could include deleting data after a certain time period (e.g., 10 years) or transitioning it to tape storage.

See spectrum.ieee.org/tape-storage...

08.02.2024 10:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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5. Tidy up "junk" files

Energy is needed to store and backup data. you can reduce your footprint by deleting files you don't need. For #fMRIPrep, junk files make up to 96% of total size.

Our tool fMRIPrepCleanup, automatically finds/removes this data: github.com/NickESouter/...

08.02.2024 10:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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4b. Time and location matter

You can also consider choosing cloud computing services based in countries/regions with lower average carbon intensity.

2022 data for countries and US states ⬇️

08.02.2024 10:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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4a. Time and location matter

The carbon intensity of electricity peaks at busy times and drops overnight and at the weekend. By scheduling preprocessing/analysis to run at low intensity times, you can use the same amount of energy while emitting less carbon.

Data for the UK ⬇️

08.02.2024 10:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

3. Preprocess conservatively

Reduce compute required for your research by only performing preprocessing steps that are necessary. In our recent study, we provide tips on how to minimise emissions from #fMRIPrep while still getting good quality data:

osf.io/preprints/os...

08.02.2024 10:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0