Jussi T. Eronen
@jussiteronen.bsky.social
Socio-ecological systems, just transition, ecology, environment, natural resources, climate, paleo, anthropology.. | Prof. & Vice-Dean at FBES @helsinki.fi | History, Fantasy & sci-fi | Hopeful for better tomorrow. He/Him. Personal account. posts ENG/FIN
What will happen next..? This is happening in very critical moment geopolitically also.
Top Zelenskyy aide quits amid corruption probe on.ft.com/3XjxFbb
Top Zelenskyy aide quits amid corruption probe
Andriy Yermak’s resignation adds to trouble for beleaguered Ukrainian president
on.ft.com
November 28, 2025 at 3:35 PM
What will happen next..? This is happening in very critical moment geopolitically also.
Same situation in Finland...
Fewer workers. Fewer international students. More people leaving.
A "step in the right direction" according to the PM.
Impossible to take PM/govt seriously on growth if they are deliberately reducing it (and making the fiscal position worse) *as a matter of policy*.
www.bbc.co.uk/news/article...
A "step in the right direction" according to the PM.
Impossible to take PM/govt seriously on growth if they are deliberately reducing it (and making the fiscal position worse) *as a matter of policy*.
www.bbc.co.uk/news/article...
UK net migration falls sharply with drop in arrivals for work and study
Provisional figures for net migration to the UK show levels dropped to 204,000 in the year to June 2025.
www.bbc.co.uk
November 28, 2025 at 8:14 AM
Same situation in Finland...
Taantumaa pukkaa, kiitos "tuntematon jarru"..
Black Fridayn odotettu lukema. Ollaan virallisesti taantumassa😦
Tilastokeskus: Bruttokansantuotteen volyymi pieneni 2025 heinä-syyskuussa 0,3 % edellisestä vuosineljänneksestä. Työpäiväkorjattu bkt pieneni 0,6 % vuoden 2024 kolmannen neljänneksen tasolta.
👇
stat.fi/julkaisu/cm1...
Tilastokeskus: Bruttokansantuotteen volyymi pieneni 2025 heinä-syyskuussa 0,3 % edellisestä vuosineljänneksestä. Työpäiväkorjattu bkt pieneni 0,6 % vuoden 2024 kolmannen neljänneksen tasolta.
👇
stat.fi/julkaisu/cm1...
Bruttokansantuote pieneni 0,3 prosenttia vuoden 2025 kolmannella neljänneksellä | Tilastokeskus
stat.fi
November 28, 2025 at 7:22 AM
Taantumaa pukkaa, kiitos "tuntematon jarru"..
Fascinating mystery of the first farmers in Europe, and how they turned (or did they?) to violence... (and also about headless corpses)
www.science.org/content/arti...
www.science.org/content/arti...
Headless bodies hint at why Europe’s first farmers vanished
Wave of mass brutality accompanied the collapse of the first pan-European culture
www.science.org
November 27, 2025 at 7:52 PM
Fascinating mystery of the first farmers in Europe, and how they turned (or did they?) to violence... (and also about headless corpses)
www.science.org/content/arti...
www.science.org/content/arti...
Reposted by Jussi T. Eronen
Now that COP is over, rich countries can go back to not pretending. Until next COP when both them and their pet journalists can celebrate their climate leadership
November 26, 2025 at 10:45 AM
Now that COP is over, rich countries can go back to not pretending. Until next COP when both them and their pet journalists can celebrate their climate leadership
Climate change and geopolitics might become the ruin of the French wines..
www.theguardian.com/world/2025/n...
www.theguardian.com/world/2025/n...
French winemakers ‘battle for survival’ as minister prepares for crisis talks
Vineyard owners say sales slump, Trump tariffs and worst harvest in 70 years have put producers in danger of closure
www.theguardian.com
November 26, 2025 at 10:59 AM
Climate change and geopolitics might become the ruin of the French wines..
www.theguardian.com/world/2025/n...
www.theguardian.com/world/2025/n...
Worth reading
🔴 NEW 🔴
MEPs Call for Urgent Review of €1.5 Billion EU Food Scheme Pushing ‘Misleading’ Claims
📝 @lauravilladiego.bsky.social 👇
www.desmog.com/2025/11/25/m...
MEPs Call for Urgent Review of €1.5 Billion EU Food Scheme Pushing ‘Misleading’ Claims
📝 @lauravilladiego.bsky.social 👇
www.desmog.com/2025/11/25/m...
MEPs Call for Urgent Review of €1.5 Billion EU Food Scheme Pushing 'Misleading' Claims
EU taxpayers are funding a multi-year campaign blitz which frequently overstates the environmental benefits of eating meat and dairy while featuring bizarre and misleading claims. Since 2017, the Euro...
www.desmog.com
November 26, 2025 at 10:30 AM
Worth reading
Things look pretty stark for France (and for Europe)... doesn't really matter whether it is LePen or Bardella if they end up being president...
Don’t say you weren’t warned.
New poll suggests Jordan Bardella would win second round of 🇫🇷 presidential election against any other of four tested candidates ⬇️
New poll suggests Jordan Bardella would win second round of 🇫🇷 presidential election against any other of four tested candidates ⬇️
November 26, 2025 at 8:16 AM
Things look pretty stark for France (and for Europe)... doesn't really matter whether it is LePen or Bardella if they end up being president...
Reposted by Jussi T. Eronen
The biggest misunderstanding of Carbon Dioxide Removal (CDR), IMHO, is that many assume it is a replacement for emissions reductions. As in, more CDR, less emission reductions. No. Emissions need to go down as fast as possible, even faster, no matter how much (~feasible) CDR you have.
2/
2/
November 25, 2025 at 9:10 PM
The biggest misunderstanding of Carbon Dioxide Removal (CDR), IMHO, is that many assume it is a replacement for emissions reductions. As in, more CDR, less emission reductions. No. Emissions need to go down as fast as possible, even faster, no matter how much (~feasible) CDR you have.
2/
2/
And there goes another layer of (modest) transparency...
In a potentially dramatic change to how it chooses what science to fund, NIH is ending a long-running practice at many of its institutes of establishing, and making public, a threshold peer-review score needed for a grant application’s approval. https://scim.ag/48ck2zu
NIH shake-up to grant decision-making draws concerns of political meddling
Policy drops “paylines” based on peer-review scores and requires geography and other factors to guide approvals
scim.ag
November 25, 2025 at 3:20 PM
And there goes another layer of (modest) transparency...
Yeah, spot on. This is going to be bumpy ride...
Uhh... this whole banking on Germany to be the military backbone for Europe (with less US)... may not have been thought through. At least no one told the Germans.
With Berlin saying nein to EU defense integration, this by default means Germany defending Europe
koerber-stiftung.de/site/assets/...
With Berlin saying nein to EU defense integration, this by default means Germany defending Europe
koerber-stiftung.de/site/assets/...
November 25, 2025 at 3:19 PM
Yeah, spot on. This is going to be bumpy ride...
Reposted by Jussi T. Eronen
I keep saying, Google intentionally making its search worse is a world-historical fumble, and it's a huge opportunity for so many others across the internet, if they'll just seize it..
Google at its peak was basically the best information retrieval system in human history and they and every competitor decided going from there to “you didn’t want answers you wanted half-assed auto-complete 80%-wrong hallucinations” in a few years was the right idea
November 25, 2025 at 3:12 PM
I keep saying, Google intentionally making its search worse is a world-historical fumble, and it's a huge opportunity for so many others across the internet, if they'll just seize it..
Reposted by Jussi T. Eronen
📢📢PhD position available!! 📢📢
"Improving future climate prediction through
modelling and data of Earth’s past"
At the University of Bristol, UK.
More details and how to apply:
shorturl.at/wKh2W
..or message me here directly.
"Improving future climate prediction through
modelling and data of Earth’s past"
At the University of Bristol, UK.
More details and how to apply:
shorturl.at/wKh2W
..or message me here directly.
November 25, 2025 at 2:07 PM
📢📢PhD position available!! 📢📢
"Improving future climate prediction through
modelling and data of Earth’s past"
At the University of Bristol, UK.
More details and how to apply:
shorturl.at/wKh2W
..or message me here directly.
"Improving future climate prediction through
modelling and data of Earth’s past"
At the University of Bristol, UK.
More details and how to apply:
shorturl.at/wKh2W
..or message me here directly.
Not good...
You can even put an exact date on the day when Brussels finally gave up on its decade-long dream of seeking to be the predominant global tech regulator that would rein in American tech titans like Google and Apple.
It came last Wednesday — Nov. 19.
It came last Wednesday — Nov. 19.
Brussels is done being the world’s digital policeman
The “Brussels Effect” is dead. Now Washington is setting the pace on deregulation in Europe.
www.politico.eu
November 25, 2025 at 8:08 AM
Not good...
Reposted by Jussi T. Eronen
Two miles of ice core on the shelf at our national ice core facility in Lakewood, Colorado. The WAIS Divide core from West Antarctica is a 3400m long (deepest US core, 2nd deepest ice core ever) 68,000 year old record of high resolution climate.
November 24, 2025 at 5:03 PM
Two miles of ice core on the shelf at our national ice core facility in Lakewood, Colorado. The WAIS Divide core from West Antarctica is a 3400m long (deepest US core, 2nd deepest ice core ever) 68,000 year old record of high resolution climate.
Turns out that sucking CO2 from air is fairly expensive and not easy (and we won't be able to do it at the scale that is needed to ease CO2 emissions in any great quantity at timescales needed). Curbing CO2 emissions is the easiest and fastest way, if we can just agree on it as a society...
"The cost of removing large quantities of CO2 from the air will fall in the medium term, but not as much as previously hoped.
This is the conclusion reached by @ethz.ch researchers on the basis of new calculations. Efforts to reduce carbon emissions should therefore continue at pace"
This is the conclusion reached by @ethz.ch researchers on the basis of new calculations. Efforts to reduce carbon emissions should therefore continue at pace"
Cost of direct air carbon capture to remain higher than hoped
The cost of removing large quantities of CO2 from the air will fall in the medium term, but not as much as previously hoped. This is the conclusion reached by ETH researchers on the basis of new calcu...
ethz.ch
November 25, 2025 at 6:54 AM
Turns out that sucking CO2 from air is fairly expensive and not easy (and we won't be able to do it at the scale that is needed to ease CO2 emissions in any great quantity at timescales needed). Curbing CO2 emissions is the easiest and fastest way, if we can just agree on it as a society...
Reposted by Jussi T. Eronen
LLMs are fast becoming a major source of information.
In a new piece over at The Climate Brink, I argue that LLMs are fundamentally consensus machines, and could help defragment our information ecosystem – at least if their creators do not put thumbs on the digital scale.
In a new piece over at The Climate Brink, I argue that LLMs are fundamentally consensus machines, and could help defragment our information ecosystem – at least if their creators do not put thumbs on the digital scale.
Consensus machines
Will the AI future inadvertently recenter expertise?
www.theclimatebrink.com
November 24, 2025 at 5:18 PM
LLMs are fast becoming a major source of information.
In a new piece over at The Climate Brink, I argue that LLMs are fundamentally consensus machines, and could help defragment our information ecosystem – at least if their creators do not put thumbs on the digital scale.
In a new piece over at The Climate Brink, I argue that LLMs are fundamentally consensus machines, and could help defragment our information ecosystem – at least if their creators do not put thumbs on the digital scale.
Reposted by Jussi T. Eronen
Terrific new paper by @jessicalwarelab.bsky.social and others on dragonfly wings, in particular the hydrocarbons which act in multiple ways - structurally, pheromonally and in terms of water resistance. Wish I were still teaching, I'd use this as a great example. of multiple adaptations.
The secrets of the extreme durability of odonata wings
Abstract. Essential properties considered in the design, fabrication, and application of contemporary bio/nanomaterials have been modeled on adaptations of
academic.oup.com
November 24, 2025 at 5:45 PM
Terrific new paper by @jessicalwarelab.bsky.social and others on dragonfly wings, in particular the hydrocarbons which act in multiple ways - structurally, pheromonally and in terms of water resistance. Wish I were still teaching, I'd use this as a great example. of multiple adaptations.
Reposted by Jussi T. Eronen
UPDATE: Americans who use
YouTube 84%
Facebook 71%
Instagram 50%
TikTok 37%
WhatsApp 32%
Reddit 26%
Snapchat 25%
X (Twitter) 21%
Threads 8%
Bluesky 4%
Truth Social 3%
Full Pew Research Center report: https://www.pewresearch.org/internet/2025/11/20/americans-social-media-use-2025/
YouTube 84%
Facebook 71%
Instagram 50%
TikTok 37%
WhatsApp 32%
Reddit 26%
Snapchat 25%
X (Twitter) 21%
Threads 8%
Bluesky 4%
Truth Social 3%
Full Pew Research Center report: https://www.pewresearch.org/internet/2025/11/20/americans-social-media-use-2025/
November 23, 2025 at 9:55 PM
UPDATE: Americans who use
YouTube 84%
Facebook 71%
Instagram 50%
TikTok 37%
WhatsApp 32%
Reddit 26%
Snapchat 25%
X (Twitter) 21%
Threads 8%
Bluesky 4%
Truth Social 3%
Full Pew Research Center report: https://www.pewresearch.org/internet/2025/11/20/americans-social-media-use-2025/
YouTube 84%
Facebook 71%
Instagram 50%
TikTok 37%
WhatsApp 32%
Reddit 26%
Snapchat 25%
X (Twitter) 21%
Threads 8%
Bluesky 4%
Truth Social 3%
Full Pew Research Center report: https://www.pewresearch.org/internet/2025/11/20/americans-social-media-use-2025/
Really great news! (But only on 8-10+ years time range, as the possible drug development is slow business.. for good reasons)
Oh my gosh. This is... A thing. Please allow a microbiologist who has played with the microbe that makes this to waffle on for a bit in a short thread. (1)
British and Australian chemists have discovered a powerful new antibiotic called pre-methylenomycin C lactone, hiding in a well-known soil bacterium. This molecule kills drug-resistant bacteria without triggering resistance. buff.ly/YlXaONo
#ShareGoodNewsToo
#ShareGoodNewsToo
November 24, 2025 at 10:00 AM
Really great news! (But only on 8-10+ years time range, as the possible drug development is slow business.. for good reasons)
Reposted by Jussi T. Eronen
#cop30 decision's "recalling with concern" that "historical cumulative net carbon dioxide emissions account for at least four fifths of the total carbon budget for a 50% probability of limiting global warming to 1.5C" was true *in 2019*.
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
unfccc.int
November 23, 2025 at 8:18 PM
#cop30 decision's "recalling with concern" that "historical cumulative net carbon dioxide emissions account for at least four fifths of the total carbon budget for a 50% probability of limiting global warming to 1.5C" was true *in 2019*.
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
The hard truth is that overshoot is really really hard to get to also..
Now that we are likely to cross 1.5°C, there is increasing discussion on "overshoot".
There is a lot of uncertainties on overshoot, but there is one thing that we are 100% sure about:
GHG emissions need to go down >90% in decades for overshoot to be a reality.
www.swp-berlin.org/publikation/...
There is a lot of uncertainties on overshoot, but there is one thing that we are 100% sure about:
GHG emissions need to go down >90% in decades for overshoot to be a reality.
www.swp-berlin.org/publikation/...
November 24, 2025 at 9:55 AM
The hard truth is that overshoot is really really hard to get to also..
Reposted by Jussi T. Eronen
And if IPCC AR7 is not released until after the GST in 2028, then they will still be using the 2019 number until 2029, when the budget for 1.5°C would have been exceeded...
(unless someone comes up with new bigger budgets)
(unless someone comes up with new bigger budgets)
#cop30 decision's "recalling with concern" that "historical cumulative net carbon dioxide emissions account for at least four fifths of the total carbon budget for a 50% probability of limiting global warming to 1.5C" was true *in 2019*.
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
unfccc.int
November 24, 2025 at 9:11 AM
And if IPCC AR7 is not released until after the GST in 2028, then they will still be using the 2019 number until 2029, when the budget for 1.5°C would have been exceeded...
(unless someone comes up with new bigger budgets)
(unless someone comes up with new bigger budgets)