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micheltsamados.bsky.social

@micheltsamados.bsky.social
333 followers 429 following 145 posts

Physicist, Associate Professor at CPOM, @ES_UCL. Study climate of polar regions. Also dynamics of complex systems. Main current interest : sea ice. www.ucl.ac.uk/earth-sciences/people…

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micheltsamados.bsky.social @micheltsamados.bsky.social · 29/09/2026
📢 New special issue now open for submissions! I'm pleased to be co-editing Machine Learning and AI in Arctic and Antarctic Research. If you're applying AI/ML to polar science, wed love to see your work. iopscience.iop.org/collections/... #AI #MachineLearning #Arctic #Antarctic #Cryosphere
iopscience.iop.org
Focus on Machine Learning and AI in Arctic and Antarctic Research: Observation, Prediction, and Discovery - IOPscience
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micheltsamados.bsky.social @micheltsamados.bsky.social · 29/09/2026
1/n New paper out: "Satellite-Derived Volume Budget of Antarctic Sea Ice." This project started during Covid and took years of collaboration to bring together. agupubs.onlinelibrary.wiley.com/doi/10.1029/... A huge effort led by an amazing team, led by Sabina Sulikova (MSc @es-ucl.bsky.social)
agupubs.onlinelibrary.wiley.com
Satellite‐Derived Volume Budget of Antarctic Sea Ice
We decompose Antarctic sea ice volume (SIV) into dynamic and thermodynamic terms over 2014–2020, using a novel year-round, dual-frequency sea ice thickness product Winter SIV is largely determine...
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Fabrice Ardhuin @fabriceardhuin.bsky.social · 27/09/2026
🌊 From logs to waves: measuring ocean currents is not so easy as it sounds. Mariners used to throw logs overboard. The most accurate methods today use the motion of waves. This preprint is now in review, and it show the most accurate current measurements ever made. eartharxiv.org/repository/v...
Example map of current (magnitude and direction), vorticity and divergence, in the South Madagascar Coastal Current, obtained from a single pair of Sentinel 2 tandem images. The measurement noise at 1 km resolution is about 1 cm/s.  The current is estimated as the phase speed of surface waves minus their expected linear wave theory celerity (as usually done with HF radars).
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micheltsamados.bsky.social @micheltsamados.bsky.social · 20/09/2026
Reassuring to hear a more optimistic (French) point of view from Yann Le Cun here interesting digs at some of the big multi-nationals and their over-relience on LLMs, and limits of robotics... www.youtube.com/watch?v=Y4s8...
youtube.com
Yann Le Cun : où va l’intelligence artificielle ?
YouTube video by Sciences Po
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The Copernicus Marine Service @copernicusmarine.bsky.social · 18/09/2026
As the #Arctic loses its ice, it loses its inhabitants. With the Arctic warming, it has lost a third of summer sea ice since 1993, reducing the habitat availability for some of its most iconic species. #DataViz #OSR10 #CopernicusMarine
The infographic illustrates the decline of Arctic sea ice from 1993 to 2023 with graphs showing average sea ice extent and temperature changes. It highlights the impact on species like the Polar Bear, Pacific Walrus, Ringed Seal, and Ivory Gull, including statistics on their populations and ranges. The bottom section features a map of the Arctic region, emphasizing climate change's impact on ice loss.
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micheltsamados.bsky.social @micheltsamados.bsky.social · 31/08/2026
1/n A couple of years ago we had the pleasure to welcome Wenxuan Liu as a visiting PhD student from Wuhan University. His work with us led to an exciting series of papers of which the later is now just out now: tc.copernicus.org/articles/20/...
tc.copernicus.org
Year-Round High-Resolution Sea Ice Freeboard Retrieval Using ICESat-2 ATL03 Photon Data
Abstract. Arctic sea ice freeboard is critical for estimating ice thickness and characterizing surface morphology, yet it remains poorly constrained, especially during the melt season due to limitatio...
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micheltsamados.bsky.social @micheltsamados.bsky.social · 25/08/2026
An interesting year to be teaching Ocean Physics and Climate Change #GEOL0022 @es-ucl.bsky.social @ucl.ac.uk. Looking forward to the new cohort of students this year - we have lots to cover!
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micheltsamados.bsky.social @micheltsamados.bsky.social · 16/08/2026
We need to show rightwing newspapers that actions have consequences. Add your name: goodlawproject.org/s/abb8a1
goodlawproject.org
Jason Arday: Demand a public inquiry now | Good Law Project
Commission an immediate public inquiry into how to ensure a responsible press given its contribution to Dr Arday’s tragic death.
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Zack Labe @zacklabe.com · 13/08/2026
We're not too far off from the all-time highest sea surface temperature recorded in Niño 3.4. Join our next webinar covering the record July U.S./global temperatures, recent extreme events, and El Niño of course. 📣 Sign up at climatecentral-org.zoom.us/webinar/regi..., also open Q/A at the end.
Line graph time series of daily Nino 3.4 sea surface temperatures from 1982 to 2026. This year is currently a record high for this time of year through August 11, 2026. Data is from NOAA OISSTv2.1, and the graphic is created by Climate Central at https://www.climatecentral.org/climate-briefings.
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micheltsamados.bsky.social @micheltsamados.bsky.social · 06/08/2026
1/n Out now in The Cryosphere: "Bayesian inversion of satellite altimetry for Arctic sea ice and snow thickness" by Elie René-Bazin et al. The paper addresses a problem in sea ice remote sensing: retrieving sea ice thickness from satellite altimetry without using an independent snow depth estimate.
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David Ho @davidho.bsky.social · 25/07/2026
A wealth tax would lead to a more equal society.
bbc.com
Gary Lineker among millionaires asking Andy Burnham to tax them more
A group including the former England footballer write to the new PM telling him "we can afford it".
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Simon Evans @drsimevans.carbonbrief.org · 25/06/2026
NEW ANALYSIS: UK sales of electric vehicles just overtook petrol cars for the first time What's that you say? Something something demand, something something ZEV mandate? Take a look at the data: www.carbonbrief.org/...
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Prof Bill McGuire @profbillmcguire.bsky.social · 07/06/2026
Sea-surface temperature across El Nino region 3.4 heading into unknown territory We don't know where this will end up
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micheltsamados.bsky.social @micheltsamados.bsky.social · 07/06/2026
Fascinating #AI4EO #GEOL0069 project by @es-ucl.bsky.social student Simone Pang! The satellite data shows how initiatives like #ULEZ are successfully clearing our city's air. Video: www.youtube.com/watch?v=_bFP... Code: github.com/muimui9/lond... #London #AirQuality #EarthObservation #AI
youtube.com
Classifying Urban NO₂ Pollution Zones over Greater London
YouTube video by muimui
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Dr Ella Gilbert @drgilbz.bsky.social · 26/05/2026
Climate heating is making heatwaves hotter, longer and more frequent. Breaking records by 2C is unusual - as is this kind of heat this early in the year.
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micheltsamados.bsky.social @micheltsamados.bsky.social · 24/05/2026
Great work by Connor Neloson @es-ucl.bsky.social. Snow Depth on Arctic Sea Ice Retrieval Using a Synergy of Sentinel‐3's Active and Passive Microwave Instruments - Nelson - 2026 - Geophysical Research Letters - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/full/10....
agupubs.onlinelibrary.wiley.com
Snow Depth on Arctic Sea Ice Retrieval Using a Synergy of Sentinel‐3's Active and Passive Microwave Instruments
We use Sentinel-3's active and passive microwave instruments synergistically to produce retrievals of snow depth on Arctic sea ice The resultant snow depths achieve a root mean square error (RMSE...
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Helen Czerski @helenczerski.bsky.social · 23/05/2026
Solar power is generating 46.3% of the UK's electricity right now. Only 7.2% is from fossil fuels. And so many rooftops don't yet have solar panels on them - this is only going to get better. Balcony solar panels will also soon be available in the UK: no middle man between you & the sun. 🎉☀️😎
Screenshot of dashboard for the UK electricity supply, showing 46.3% solar.
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Royal Institution @rigb.org · 28/04/2026
We are deeply saddened to hear of the passing of Julian Hunt, who served as a Trustee of the Royal Institution from 2012 to 2021. Julian’s contributions helped shape our direction and strengthened our charitable mission to connect people of all ages and backgrounds with science. (1/2)
Julian Hunt posing for a portrait with his hands behind his back, wearing a colourful orange tie
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UK Charity News @uk-charity.bsky.social · 28/04/2026
Remembering Lord Julian Hunt: a passionate advocate for science and education at the Royal Institution. How do you honor impactful leaders? #Legacy www.rigb.org/explore-science/explor…
rigb.org
Ri Director, Katherine Mathieson, pays tribute to Lord Julian Hunt
On behalf of the Staff, Trustees, Patrons and Members of the Royal Institution (Ri), Director, Katherine Mathieson, has today
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David Ho @davidho.bsky.social · 09/04/2026
Our burning of fossil fuels is melting sea ice and drowning emperor penguin chicks, putting them in danger of extinction. 😱
theguardian.com
Mass drowning of chicks puts emperor penguins at risk of extinction
Record low levels of Antarctic sea ice is having grim consequences for penguins yet to grow waterproof feathers
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Robert Reich @rbreich.bsky.social · 07/04/2026
"The Peace President." This madman must be removed from office. www.nbcnews.com/politics/white-hous…
nbcnews.com
Trump says 'a whole civilization will die tonight' ahead of deadline for Iran
Trump's threat is among his most extreme rhetoric toward Iran since the war started.
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Dr Ella Gilbert @drgilbz.bsky.social · 03/04/2026
Coverage of our open letter in the Financial Times this morning. New fossil fuels are the opposite of what we need in the face of the climate crisis.
ft.com
Leading UK climate scientists warn against new North Sea drilling
Intervention comes as political pressure rises for British government response to energy crisis caused by Iran war
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Simon Evans @drsimevans.carbonbrief.org · 02/04/2026
NEW ANALYSIS: Record wind and solar generation saved UK from gas imports worth £1bn in March 2026 📈Wind+solar were up 22% year-on-year in March to a record high for the month ⛴️This avoided the need for gas imports worth £1bn at current high prices www.carbonbrief.org/...
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Zack Labe @zacklabe.com · 29/03/2026
I had a feeling this was going to happen. Sad news, especially given the poor state of sea ice after this winter. Looks like we won't be getting any more data for Arctic sea-ice thickness and volume for a while from PIOMAS. See: psc.apl.uw.edu/research/pro...
Screenshot of text that says: "Important Notice (3/24/2026): 
NOAA NWS/NCEP has terminated the NCEP/NCAR R1 reanalysis as of March 18th, 2026. NCEP/NCAR R1 has been used as the atmospheric forcing data in the PIOMAS reanalysis . We had not been aware of this change in service which was apparently formally announced Feb 13. 2026. This means that we will have to find alternatives and generate a replacement. It will take considerable effort and time to update data streams, re-calibrate the model and generate updated time series. We don’t yet have a good sense if that’s possible with available funds and if so, when we will be able to resume production of a new PIOMAS time series. While a replacement of the NCAR/NCEP R1 as the forcing product makes ultimate sense, we would have wished for a longer time period to facilitate the transition. We are sorry what this means to our many users.  PIOMAS has been in production since March 2010 and we rarely missed updates by more than a couple of weeks (except for  government shutdowns). This will be longer. Check back here for updates! "
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David Ho @davidho.bsky.social · 24/03/2026
I’d rather live next to wind turbines and solar panels.
apnews.com
Large oil refinery explosion near Texas coast forces residents to shelter in place
Officials say a large explosion at an oil refinery near the Texas coast has shot plumes of smoke into the air and forced nearby residents to shelter in place.
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David Ho @davidho.bsky.social · 13/03/2026
Oil isn’t getting through the Strait of Hormuz but sunlight and wind are.
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David Ho @davidho.bsky.social · 25/02/2026
Oh
time.com
Anthropic Drops Flagship Safety Pledge
In an abrupt shift, the company may release future AI models without ironclad safety guarantees
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micheltsamados.bsky.social @micheltsamados.bsky.social · 23/02/2026
www.linkedin.com/posts/michel...
linkedin.com
#ai4eo #earthobservation #artificialintelligence #ucl #climatetech #opensource #environmentalimpact #sustainability | Michel Tsamados
AI can be daunting—sparking timely concerns about job displacement, data sovereignty, and surveillance. But like it or not, it is ubiquitous in research today and here to stay. As we navigate this tec...
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UCL News @uclnews.bsky.social · 11/02/2026
💜 Today, @ucl.ac.uk marks 200 years since its foundation. Throughout 2026, we will celebrate two centuries of learning and innovation and share those achievements with our global community. ➡️Discover our exciting #UCL200 programme of events and learn how you can get involved.
ucl.ac.uk
UCL celebrates 200 years: A landmark year begins
Today, UCL marks 200 years since its foundation. Based in the heart of London, UCL is rooted in curiosity, tolerance and academic excellence. Throughout the year we will celebrate two centuries of lea...
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micheltsamados.bsky.social @micheltsamados.bsky.social · 31/01/2026
www.linkedin.com/posts/michel...
linkedin.com
Should the Arctic be refrozen? | Michel Tsamados
Interesting and well written article in The Economist this week on the climate intervention ideas around refreezing the Arctic. Our very own Alistair Duffey from UCL Earth Sciences and Matthew Henry d...
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micheltsamados.bsky.social @micheltsamados.bsky.social · 31/01/2026
Another good video on forced and free motion with nice analogies between basketball 🏀 and ocean physics 🌊 #GEOL0022 by the excellent Tyler Fairbairn www.youtube.com/watch?v=XEEH...
youtube.com
Tyler Fairbairn Ocean Physics
YouTube video by tyler fairbairn
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Private Eye Magazine @privateeyenews.bsky.social · 07/01/2026
Happy New Fear! The new Private Eye is out now.
A photo of the front cover of issue 1666 of Private Eye magazine with the caption "on shelves now." The headline reads: “Happy New Fear!” The cover image shows a staged photograph of senior US political figures in suits gathered around a table in a darkened room, resembling a war-room scenario. Speech bubbles add satirical dialogue: one figure says “We’ve invaded Venezuela,” another replies “Caracas?”, and a seated Donald Trump declares, “Yes, I’m completely insane.” A banner at the bottom reads: “INSIDE: HAS TRUMP GONE BARKING MADURO?”
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Zack Labe @zacklabe.com · 28/12/2025
Comparison of monthly temperature anomalies in the #Arctic versus the #Antarctic so far in 2025 (yellow lines). The other lines show the monthly anomalies for years from 1940 (blue) to 2024 (red). Note the long-term trends through the color gradient. Data from @copernicusecmwf.bsky.social ERA5.
Line graph time series of monthly mean surface temperature anomalies for the Arctic region only. Every month is shown from 1940 to 2025. There is a long-term warming trend in all months of the year.Line graph time series of monthly mean surface temperature anomalies for the Antarctic region only. Every month is shown from 1940 to 2025. There is a long-term warming trend in all months of the year, but less obvious than the other regions.
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micheltsamados.bsky.social @micheltsamados.bsky.social · 28/12/2025
One of my highligths of 2025 was to listen to the conference by @cedricvillani.bsky.social and interview him this summer in Crete Hania as part of the #FestumPi series of conferences. His talk entitled "Is AI the doom of ecology?" is a must watch www.youtube.com/watch?v=3pFT...
youtube.com
Cédric Villani and Michel Tsamados: Is AI the doom of ecology?
YouTube video by FESTUM-PI
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micheltsamados.bsky.social @micheltsamados.bsky.social · 27/12/2025
#wearethierrybreton back off Donald
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Zack Labe @zacklabe.com · 20/12/2025
A few days before Christmas and near record high temperatures are occurring around the North Pole in the #Arctic 🎅🥵 Download at zacklabe.com/arctic-tempe...
Line graph time series of daily Arctic temperatures north of 80°N latitude for every year from 1958 through 2025. There is a long-term warming trend for every day of the year and a clear seasonal cycle. 2025 is currently much warmer than average.
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European Geosciences Union (EGU) @egu.eu · 15/12/2025
⏳ Abstract submission countdown is already on! -30 DAYS to go! 👇 Your next steps? ✔️Your Copernicus.org login details ✔️ An EGU membership (www.egu.eu/0ZFO4P) ✔️ Your abstract🥳! Submit here: www.egu26.eu or email egu26@copernicus.org for help. 📅 Deadline: 15 January 2026, 13.00CET
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micheltsamados.bsky.social @micheltsamados.bsky.social · 12/12/2025
"Wave bureau" A short movie for Ocean Physics and Climate Change #GEOL0022 by Fjodors Aleksejevs with amazing photography, music and humour reminding of me of the late David Lynch www.youtube.com/watch?v=5uTB... This one deserves a price! @es-ucl.bsky.social @ucl.ac.uk
youtube.com
Wave Bureau
YouTube video by Fjodors Aleksejevs
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micheltsamados.bsky.social @micheltsamados.bsky.social · 06/12/2025
Another gem from my wonderful students in Ocean Physics and Climage Change #GEOL0022. This time it is by Ceren Baylan singing an ode to the Gulf Stream with her soothing guitar. Perfect way to start a relaxing week end www.youtube.com/watch?v=PRjS...
youtube.com
Gulf Stream - Keep Me Moving
YouTube video by Ceren Baylan
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Michael E. Mann @michaelemann.bsky.social · 04/12/2025
"War is peace. Freedom is slavery. Ignorance is strength" -- George Orwell (1949)
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David Ho @davidho.bsky.social · 27/11/2025
And how many witches we’d be burning.
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EUMETSAT @eumetsat.int · 27/11/2025
Our new article explores how @copernicusmarine.bsky.social uses data from EUMETSAT-operated Sentinel-3 satellites to support the ocean sector. From algae monitoring to sea level & ice forecasts, @mercatorocean.bsky.social’s Pierre-Yves Le Traon explains why these services are vital: bit.ly/4pcwp64
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micheltsamados.bsky.social @micheltsamados.bsky.social · 20/11/2025
Amazing Ocean Physics and Climate Change #GEOL0022 presentation South Park style by Samirah Khatun...Very timely in view of risks of AMOC tipping if beaufort Gyre Arctic freshwater released to North Atlantic. Any resemblance to real persons is purely coincidental 😅 www.youtube.com/watch?v=P6qt...
youtube.com
Ekman & Geostrophic Motion. f.t. Beaufort Gyre (samirah khatun)
YouTube video by s
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 16/11/2025
Is the Atlantic Ocean circulation close to tipping? Hear the latest science as I presented it last month at the ATLAS25 event in Helsinki. Let me know if anything is unclear, or if you see good reasons why your government shouldn't immediately act on this. 🌊 youtu.be/ULJXqOZuY-8
youtu.be
Is the Atlantic Ocean circulation close to tipping?
YouTube video by Earth System Analysis - Potsdam Institute
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micheltsamados.bsky.social @micheltsamados.bsky.social · 14/11/2025
1/3 A lot of people are contacting me to do a PhD in polar remote sensing and modelling. Here are two advertised PhD studentship led by colleagues of mine that are super cool and in collaboration with me and UCL @es-ucl.bsky.social
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Zack Labe @zacklabe.com · 11/11/2025
Average temperature departures by month in the #Antarctic since the year 1940. Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Line graph time series of monthly mean surface temperature anomalies for the Antarctic region only. Every month is shown from 1940 to 2025. There is a long-term warming trend in all months of the year, but less obvious than the other regions.
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Private Eye Magazine @privateeyenews.bsky.social · 12/11/2025
BBC Under Attack: Pot and Kettle Special The new Private Eye is out now.
A photo of the front cover of issue 1662 of Private Eye magazine with the caption "on shelves now." The front cover reads “BBC Under Attack: Pot and Kettle Special” and shows Broadcasting House with speech bubbles coming from the building. The quotes include “Donald Trump says we broadcast fake news!”, “Nigel Farage says we’re totally biased!”, “Boris Johnson says we’re liars!”, “The Daily Mail says we’re peddling conspiracy theories!”, “Kemi Badenoch highlights poor leadership!”, “The Daily Telegraph says we’re editing for political purposes!”, and “Liz Truss says we’ve done huge damage to the country!”
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David Ho @davidho.bsky.social · 26/10/2025
One day, when this national nightmare is over and speaking up has no consequences, everyone will claim they were against this.
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micheltsamados.bsky.social @micheltsamados.bsky.social · 26/10/2025
#GEOL0022 all you ever wanted to know about the key role of the Southern Ocean in our climate system summarized in a great 5 minutes video by one of my students www.youtube.com/watch?v=f_zZ... Great work Billy Liu 👍. See credits at the end for inspiration from @jbsallee.bsky.social and others...
youtube.com
The Southern Ocean
YouTube video by Xin Liu
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micheltsamados.bsky.social @micheltsamados.bsky.social · 17/10/2025
As part of my ocean physics and climate change module #GEOL0022 students put together quick summaries of my previous class. Here is one of these presentation that really stand out due to the creativity and acting talents of its author James Ge. Great job James! www.youtube.com/watch?v=A2MQ...
youtube.com
The Ocean Heat Budget Video Presentation
YouTube video by Jamez
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