Sign in

Stefan Urbat

@stefanurb.bsky.social
1.8K followers 3K following 3.5K posts

Pirat,Dipl.-Phys.,Ex-Stadtrat Stuttgart(2014-2024),Fan von allianz-mtv-stuttgart.de #Scientists4Future geboren bei 320 ppm CO2(geglättet)Spezialinteressen: Erdsystemanalyse und Fusionsenergie/special interests Earth system analysis and fusion energy

PostsRepliesMedia
Stefan Urbat @stefanurb.bsky.social · 17h
Optimization of ARC-like tokamak stationary operation via core plasma composition and boundary shaping doi.org/10.1088/1361... via @ioppublishing.bsky.social
doi.org
Optimization of ARC-like tokamak stationary operation via core plasma composition and boundary shaping
Optimization of ARC-like tokamak stationary operation via core plasma composition and boundary shaping, Saltzman, Audrey, Rodriguez-Fernandez, Pablo, Ho, Aaron, Snoep, Garud, Han, Jiyun, Hall, Jo, Ana...
010
Stefan Urbat @stefanurb.bsky.social · 18h
this is the eletron temperature, not relevant for fusion, ion (Deuteron) temperature was lower, just 0,46 keV, a little above 5 million K
000
Reposted by Stefan Urbat
arXiv physics.plasm-ph Plasma Physics @physicsplasmph-bot.bsky.social · 09/10/2026
S. J. Howard, et al.: Compressional heating above 1 keV on the LM26 magnetized target fusion machine arxiv.org/abs/2610.11890 arxiv.org/pdf/2610.11890 arxiv.org/html/2610.11890
011
Stefan Urbat @stefanurb.bsky.social · 09/10/2026
that Avalanche will likely not make it doesn't mean nobody will, the best financed ($ US 4 billion) and most employees having (1500 to 2000) company @cfs.energy will show net energy production in 2027 and builds power plant ARC in Virginia also beginning 2027, electricity production scheduled 2032
000
Stefan Urbat @stefanurb.bsky.social · 09/10/2026
denn tatsächlich werden diese Tokamaks anders als die NIF tatsächlich MEHR Fusionsenergie erzeugen, als insgesamt an Energie hinein gesteckt wird, bei SPARC physikalisch schon bei der ersten Kampagne 1,4 mal so viel, technisch/insgesamt ca. 1,1 mal so viel, später mindestens 8 mal bzw. 6 mal
000
Stefan Urbat @stefanurb.bsky.social · 09/10/2026
mehrere Ungenauigkeiten im Artikel: es werden die Plasmahauptradien wiedergegeben (wie üblich), nicht der Durchmesser des Tokamaks, auch bauen die Chinesen gerade ihren erfolgreichen Tokamak HL-3 (Huanliu 3) auf D-T Betrieb um und wollen damit wie @cfs.energy schon 2027 echte Nettoenergie zeigen
100
Reposted by Stefan Urbat
Glen Peters @glenpeters.bsky.social · 09/10/2026
A very notable thing about this graph is that it is not a long list of developed countries. Developing countries also list high on the list, well above the EU average (and long above the US). EVs are better than ICE, people are noticing, and the transition is happening...
510038
Reposted by Stefan Urbat
Prof Ian Hall @ianhall.bsky.social · 08/10/2026
Climate change isn’t taking us to one new, stable place. It’s pushing us into a future of constant change and growing uncertainty. So the question isn’t: What will the new normal be? It’s: How do we prepare for a climate that won’t stand still? Worth reading: theconversation.com/hoping-for-a...
theconversation.com
Hoping for a ‘new normal’ climate is pointless. We must learn to adapt
It’s increasingly common to hear climate-fuelled disasters described as the ‘new normal’. But our desire for normality and predictability is wishful thinking
46129
Reposted by Stefan Urbat
Commonwealth Fusion Systems @cfs.energy · 08/10/2026
3/3 Our partners in the effort are four National Laboratories, four businesses, and two universities. For more details, check our press release. cfs.energy/news-and-med...
cfs.energy
Commonwealth Fusion Systems to Lead AI-enabled Digital Twin Fusion Project in Second Phase of Genesis Mission  | Commonwealth Fusion Systems
011
Reposted by Stefan Urbat
Commonwealth Fusion Systems @cfs.energy · 08/10/2026
We’re getting another useful tool in our fusion toolkit with a Genesis Mission award from the @departmentofenergy.bsky.social. Through the program, CFS will lead a group of U.S. labs, universities, and companies to use AI and digital twins to help catalyze commercial fusion energy work. 1/3
CFS Chief Science Officer and Co-founder Brandon Sorbom speaking at the White House
121
Reposted by Stefan Urbat
Tom Quinn @tomquinn.bsky.social · 08/10/2026
Absolutely huge announcement out of Korea with KGX now announced. Total package of 1,000 trillion won (that's ~1 trillion AUD!). Steel is a key focus. SK wants to become the first country to mass-produce hydrogen-reduced steel and use that capability to compete in the global green steel market.
esgnews.com
South Korea Announces $747 Billion Energy Transition Plan Through 2035
South Korea’s K-GX strategy mobilizes $747 billion through 2035, combining government spending and climate finance to accelerate the country’s energy
0123
Reposted by Stefan Urbat
Rachel Carson Center for Environment & Society @carsoncenter.bsky.social · 08/10/2026
We just added James Fleming’s “Excuse Us, While We Fix the Weather” to our 𝘚𝘱𝘳𝘪𝘯𝘨𝘴 archive–now with a new foreword! Originally published in 𝘙𝘊𝘊 𝘗𝘦𝘳𝘴𝘱𝘦𝘤𝘵𝘪𝘷𝘦𝘴, the piece highlights the male-dominated culture surrounding proposals for weather and climate interventions: springs-rcc.org/excuse-us-wh...
275
Reposted by Stefan Urbat
EUROfusion @eurofusion.bsky.social · 08/10/2026
JOREK, the code simulating plasma instabilities in fusion devices, is now open source 🔓 20+ years of development, contributors from Europe to Asia to the US, and now open for anyone to use and improve Read more: buff.ly/sYmMXTY
011
Stefan Urbat @stefanurb.bsky.social · 08/10/2026
Nach dem Vorbild des @departmentofenergy.bsky.social in USA gibt es jetzt via @sprind-de.bsky.social auch in Deutschland ein Meilenstein Programm für Fusionskraftwerksentwicklung durch deutsche Firmen: www.sprind.org/worte/magazi... auch korrekt aus Sondervermögen Klimaneutralität finanziert
sprind.org
SPRIND | NÄCHSTER SCHRITT ZUM FUSIONSKRAFTWERK
SPRIND startet Meilensteinprogramm im Bereich der Kernfusion.
011
Reposted by Stefan Urbat
Richard Waite @waiterich.bsky.social · 08/10/2026
Re-wetting drained peatlands is a powerful and underappreciated climate solution.
29634
Reposted by Stefan Urbat
Peter Gleick @petergleick.bsky.social · 08/10/2026
San Diego's problem isn't an Iranian attack. It's a climate-change-enhanced hurricane.
NOAA track projection of Hurricane Rachel heading to northern Mexico and southern California.
28823
Reposted by Stefan Urbat
Fusion Industry Association @fusionindustry.bsky.social · 07/10/2026
Today, Germany launched a milestone-based fusion program, providing €500 million through 2029, with total public funding expected to increase to €2.5 billion. @sprind-de.bsky.social
111
Reposted by Stefan Urbat
Christian Breyer @christianonre.bsky.social · 07/10/2026
Spain to require data centers to source 80% of electricity from renewables - www.pv-magazine.com/2026/08/26/e...
pv-magazine.com
Spain to require data centers to source 80% of electricity from renewables - pv magazine Global
Spain has proposed new rules requiring data centers to source at least 80% of their electricity from additional renewable generation, with hourly matching of consumption and supply. The framework woul...
0183
Reposted by Stefan Urbat
Chris Gloninger @climatechris.bsky.social · 07/10/2026
They had to move the y axis The El Niño chart topped out at 30C. The 2026 line went through the top and they extended the axis to 31. Warmest water ever measured there, and it does not peak until December. Wet California, dry Australia, probably the warmest year on record in 2027.
0113
Reposted by Stefan Urbat
Scripps Institution of Oceanography @scrippsocean.bsky.social · 07/10/2026
‼️Happening now: We’re educating the community about #ElNiño! ▶️ More about the event: luma.com/g812l4au ▶️ Check out our El Niño Resource Hub: scripps.ucsd.edu/news/el-nino
0171
Reposted by Stefan Urbat
Yung En Chee @yungenchee.bsky.social · 08/10/2026
"AI is being used widely in government departments including the health department, ASIC, the Australian Competition and Consumer Commission, the agriculture department, the Department of Industry, Science and Resources and the Commonwealth Ombudsman"
sbs.com.au
Widely used, rarely disclosed: The extent of AI inside government, revealed​‌
AI is spreading across government departments, but experts say 'shadow' use may be harder to track.
12110
Reposted by Stefan Urbat
Commonwealth Fusion Systems @cfs.energy · 07/10/2026
"SPARC was designed with the intent not to be connected to the grid but to have 13 of the 17 systems you need in a power plant to show the world that we have a near-scale fusion machine that can work as a power plant... 1/4
261
Reposted by Stefan Urbat
Rupert Read @rupertread.bsky.social · 07/10/2026
"Revealed: Government quietly dropped plan to prepare England for wildfires." Great work here by my friend Guy Shrubsole, covered by the Guardian. www.theguardian.com/world/2026/o...
theguardian.com
Revealed: Government quietly dropped plan to prepare England for wildfires
FOI request shows wildfire risk scheme scrapped, as data highlights many fire services lack proper protective gear
094
Reposted by Stefan Urbat
Copernicus ECMWF @copernicusecmwf.bsky.social · 07/10/2026
Explore the CAMS #AtmosphereWatch: atmosphere.copernicus.eu/air-quality/...
084
Reposted by Stefan Urbat
Carbon Brief @carbonbrief.org · 07/10/2026
In this issue... 🪾 More than 4.6m square kilometres of forest is degraded, said the UN. 💵 Ahead of COP17, businesses called for nature-harming subsidy reform. 🌊 More than 100 nations ratified the High Seas Treaty. 🦗 Coastal areas could face invasive species due to sea level rise, said a study
151
Stefan Urbat @stefanurb.bsky.social · 07/10/2026
this gets interesting: how much from it will it make to the summary for policy makers? vested interests with some country agents will for sure oppose to large parts of it
100
Reposted by Stefan Urbat
Prof Lisa Schipper 🌍🍉💪 @lisaschipper.bsky.social · 07/10/2026
For those not too far from Bonn, you might find the fight with Deutsche Bahn worthwhile for this event on 20.10 where we explore why there is an entire chapter on Loss and Damage is the next IPCC report. www.geographie.uni-bonn.de/en/events/lo...
geographie.uni-bonn.de
Loss and Damage in the IPCC, (why) does it matter?
For the first time in its history, the Intergovernmental Panel on Climate Change (IPCC) will dedicate a standalone chapter to loss and damage (L&D) in its upcoming 7th Assessment Report. This further ...
1113
Reposted by Stefan Urbat
Eos @eos.org · 07/10/2026
UPDATE: The Forest Service may be undercounting comments about the Roadless Rule change. Its site logged ~345,00 comments, but environmental orgs say that people have sent *more than 1 million* comments opposing the rule change through pre-drafted message systems. 🧪🌲 eos.org/research-and...
eos.org
Forest Service to End Protection for 45 Million Acres of Forest - Eos
The U.S. Forest Service has moved forward with a rule to withdraw protections from 45 million acres of pristine national forests.
01411
Reposted by Stefan Urbat
Tadzio Mueller @tadziomueller.bsky.social · 07/10/2026
Deutschland, Deine Prios: oben, ein Mensch, der auf einer Wahlparty der Berliner Linken war, hat danach Hamas Funktionäre getroffen. Unten, der Beginn der faschistischen Machtübernahme in Sachsen-Anhalt. Danke @spiegel.de, dass Du das so klar darstellst.
0101
Reposted by Stefan Urbat
Union of Concerned Scientists @ucs.org · 07/10/2026
"This Super El Niño will no doubt significantly impact the Southwestern US this winter, with effects from record-high sea levels and coastal erosion to the potential for excessive rainfall and consequent flash flooding throughout the southern half of the country."— @marc-alessi.bsky.social
blog.ucs.org
Strongest El Niño on Record Triggers California State of Emergency and Is Already Affecting Global Weather Patterns
And it’s only September— El Niño doesn’t typically peak until November-January.
01710
Stefan Urbat @stefanurb.bsky.social · 07/10/2026
due @weatherprof.bsky.social it's unlikely to become a hurricane due to unfavorable conditions (shear winds) caused by current "Hyper" El Nino
000
Reposted by Stefan Urbat
Eric Holthaus @ericholthaus.com · 07/10/2026
Tropical Storm Isaias is looking very spinny today. Landfall is likely between Mobile, AL and Destin, FL on Friday PM.
182
Reposted by Stefan Urbat
Commonwealth Fusion Systems @cfs.energy · 06/10/2026
"We forget that up until the Wright brothers, there were people saying that [flight] was physically impossible — despite the evidence that birds fly." 1/3
youtube.com
Fusion energy is approaching its Kitty Hawk moment
YouTube video by Commonwealth Fusion Systems
201
Reposted by Stefan Urbat
Bulletin of the Atomic Scientists @thebulletin.org · 06/10/2026
A new study finds that 67% of US respondents support the Treaty on the Prohibition of Nuclear Weapons which calls for nuclear abolition. But only 22% of those respondents support reducing the US nuclear arsenal. How to square the difference? buff.ly/o7TVzJQ
1126
Reposted by Stefan Urbat
The Angry Astronaut @angryastro.bsky.social · 06/10/2026
Here's my first IAC 2026 video! Europe has a new space plane under construction! Pulsar Fusion is building the biggest ion engines in Europe! And that's just the beginning! youtu.be/UGh54hRlytY
youtu.be
Pulsar Fusion Update! European Space Plane almost ready for flight! IAC 2026 Coverage!
YouTube video by The Angry Astronaut
233
Stefan Urbat @stefanurb.bsky.social · 06/10/2026
that's right, of course, but also as a matter of fact we see no significant bending down of the Keeling curve so far (look here: gml.noaa.gov/ccgg/trends/... ), and globally this is the only measure, which matters - therefore the reducing GHG players can't compensate so far the growing ones
gml.noaa.gov
Trends in CO2 - NOAA Global Monitoring Laboratory
GML conducts research on greenhouse gas and carbon cycle feedbacks, changes in aerosols, and surface radiation, and recovery of stratospheric ozone.
011
Reposted by Stefan Urbat
Zeke Hausfather @zekehausfather.com · 05/10/2026
Check out the full piece over at The Climate Brink:
theclimatebrink.com
What if the world hadn't built wind and solar?
Clean energy does not simply “add to” global energy use; it displaces fossil sources that would otherwise get built.
4362
Reposted by Stefan Urbat
Jonathan Overpeck @greatlakespecktwo.bsky.social · 06/10/2026
A global view from Michigan - an unprecedented El Niño is on the way. Be careful. "I do want to push back on the idea that we can prepare for and adapt and be ready for all of these hazards, even in the wealthiest countries. We can’t." lsa.umich.edu/lsa/news-eve...
lsa.umich.edu
What to Expect from the 2026-27 Super El Niño | U-M LSA U-M College of LSA
Five questions with Julia Cole, chair of the U-M Department of Earth and Environmental Sciences and lead author of a new study about the growing intensity of El Niños.
031
Reposted by Stefan Urbat
Christian Stöcker @christianstoecker.de · 06/10/2026
Irgendwann sollte doch auch der deutschen Industrie dämmern, dass Katherina Reiche nicht ihre Interessen (sinkende Strompreise, perspektivisch Schutz vor fossilen Preisschocks) vertritt. Auch nicht die der Steuerzahler und Stromkunden. Sondern andere.
t-online.de
Brief an den Kanzler: Günther beschwert sich bei Merz über Reiches EEG-Pläne
Wirtschaftsministerin Reiche will den Ausbau der erneuerbaren Energien in Deutschland neu ordnen. Doch an den Plänen gibt es harsche Kritik – jetzt auch von einem prominenten Parteikollegen.
281576480
Reposted by Stefan Urbat
Claudia Kemfert @ckemfert.bsky.social · 06/10/2026
Heute in Berlin: „Economics of a livable planet“ bei #LivingWithinPlanetaryBoundaries – mit Stanislav Shmelev, Anna Valero, Subhra Bhattacharjee, Matthias Schmelzer & Richard Damania. Wohlstand innerhalb planetarer Grenzen braucht mehr als Effizienz. @umweltrat.bsky.social
0227
Reposted by Stefan Urbat
TechCrunch @techcrunch.com · 06/10/2026
Type One Energy raised $200M to build a fusion power plant by 2034
techcrunch.com
Type One Energy raised $200M to build a fusion power plant by 2034
Type One Energy is betting that its lean approach to fusion power will get a power plant on the grid faster, and investors have rewarded it with $200 million.
1111
Reposted by Stefan Urbat
Remote Stake @remotestake.com · 06/10/2026
Type One Energy raised $200M to build a fusion power plant by 2034, per TechCrunch. Type One Energy is betting that its lean approach to fusion power will... Read more: remotestake.com/news/type-one-energ…
remotestake.com
Type One Energy raised $200M to build a fusion power plant by 2034
Type One Energy is betting that its lean approach to fusion power will get a power plant on the grid faster, and investors have rewarded it with $200 million. — per TechCrunch
001
Stefan Urbat @stefanurb.bsky.social · 06/10/2026
Still rooting for Annie Kritcher getting one day the physics nobel prize 🏆 for cracking the Lawson criterion in nuclear fusion by her innovative Laser target 🎯 design at NIF
010
Reposted by Stefan Urbat
Ketan Joshi @ketanjoshi.co · 06/10/2026
The LOVELY people at Klimakultur had me in to write about the unfathomable amount of death and destruction that can still be avoided if Norway + Equinor decide to allow a wind down of fossil fuel production A lot to lose here....but we are already saving lives!!! www.klimakultur.no/nyheter/esti...
18624
Reposted by Stefan Urbat
Tadzio Mueller @tadziomueller.bsky.social · 06/10/2026
I know we shouldn't respond to Trump's constant rhetorical escalations, but this one's beyond: Trump "suggested Iran could 'take out' Los Angeles and San Diego – two liberal cities in the blue state". The President suggesting that a foreign power ought to launch an attack on US soil... 😵‍💫
theguardian.com
Trump suggests he would let Iran ‘take out’ Los Angeles or San Diego
Gavin Newsom calls comments ‘deranged and dangerous’ after president tells Nebraska rally: ‘They can take out a city’
172
Stefan Urbat @stefanurb.bsky.social · 06/10/2026
Ja, einfach sich nicht unnötig an der Selbstzerstörung unserer Zivilisation beteiligen, eine völlig nachvollziehbare Haltung
040
Reposted by Stefan Urbat
Niklas Höhne @niklashoehne.bsky.social · 06/10/2026
Pre-COP in Fidschi: Kleininselstaaten könnten bald untergehen. Präsidentschaft Australien und Türkei setzen auf Elektrifizierung und weniger auf Ausstieg aus fossilen Energien. Trotz langsamer Diplomatie schreiten Erneuerbare und Elektro voran. Interview: www.deutschlandfunk.de/klimakonfere...
deutschlandfunk.de
Klimakonferenz: harte Vorverhandlung in Fidschi, Intv. Niklas Höhne
083
Reposted by Stefan Urbat
Reinhard Steurer @steurer.bsky.social · 06/10/2026
Es geht nicht mehr primär um Wirkung. Es geht um Haltung.
4447
Reposted by Stefan Urbat
Jonathan Overpeck @greatlakespecktwo.bsky.social · 06/10/2026
Time for Big Oil to start paying for the huge damages they cause: “You break it, you fix it. Why shouldn’t that apply to fossil fuel companies whose products have ruptured the climate?” www.nytimes.com/2026/10/06/o...
nytimes.com
Opinion | The Science That Has Oil Companies Running Scared
However the U.S. Supreme Court rules, the work of holding oil companies accountable for climate change has a bright future.
153
Reposted by Stefan Urbat
Tadzio Mueller @tadziomueller.bsky.social · 06/10/2026
#Kollaps News: "Rechtsextremer AfD-Politiker Tobias Rausch ist Landtagspräsident von Sachsen-Anhalt" Der #Faschismus ist sowohl Symptom, als auch Resultat des globalen ökol. & gesellschaftlichen Kollaps. Im Schnitt wird er deshalb immer stärker werden.
spiegel.de
(S+) Sachsen-Anhalt - Magdeburg: So läuft die erste Sitzung im neuen Landtag
35 Jahre jung und nun Landtagspräsident von Sachsen-Anhalt: Der AfD-Mann Tobias Rausch ist von einer Mehrheit gewählt, auch Abgeordnete anderer Parteien stimmten für den rechtsextremen Politiker. Die ...
3126