Florian U. Jehn
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florianjehn.fediscience.org.ap.brid.gy
Florian U. Jehn
@florianjehn.fediscience.org.ap.brid.gy
Aggressively agreeable | currently exploring the overlap of #ExistentialRisk, #FoodSecurity, #NuclearWinter and #Collapse | also quite interested in […]

🌉 bridged from https://fediscience.org/@florianjehn on the fediverse by https://fed.brid.gy/
Reposted by Florian U. Jehn
Next round of updates for my #LivingLiteratureReview. This means I go back to the old posts and add new papers I found, to make sure that everything stays as up to date as possible. Posts which got updated this time:
* Mapping out collapse research ( […]

[Original post on fediscience.org]
December 17, 2025 at 9:12 AM
Next round of updates for my #LivingLiteratureReview. This means I go back to the old posts and add new papers I found, to make sure that everything stays as up to date as possible. Posts which got updated this time:
* Mapping out collapse research ( […]

[Original post on fediscience.org]
December 17, 2025 at 9:12 AM
Reposted by Florian U. Jehn
For #globalwarming it seems that we are on a pathway to be clearly above 1.5°C and arguably also clearly above 2°C. In my new post I summarize research that highlights why this is the case and also how much of these higher temperatures ranges we really have […]

[Original post on fediscience.org]
November 30, 2025 at 4:32 PM
For #globalwarming it seems that we are on a pathway to be clearly above 1.5°C and arguably also clearly above 2°C. In my new post I summarize research that highlights why this is the case and also how much of these higher temperatures ranges we really have […]

[Original post on fediscience.org]
November 30, 2025 at 4:32 PM
Reposted by Florian U. Jehn
"In August 2025, Google announced that starting next year, it will no longer be possible to develop apps for the Android platform without first registering centrally with Google." What tis means for your rights, and how you can help: https://keepandroidopen.org
Keep Android Open
Advocating for Android as a free, open platform for everyone to build apps on.
keepandroidopen.org
October 31, 2025 at 11:54 AM
Reposted by Florian U. Jehn
Remember the beautiful auroras last year? These occur when solar particles interact with Earth's magnetic field. When #earth is hit by large amounts of these particles, this is called a #geomagneticstorm. Geomagnetic storms can induce currents into the […]

[Original post on fediscience.org]
October 29, 2025 at 10:45 AM
Remember the beautiful auroras last year? These occur when solar particles interact with Earth's magnetic field. When #earth is hit by large amounts of these particles, this is called a #geomagneticstorm. Geomagnetic storms can induce currents into the […]

[Original post on fediscience.org]
October 29, 2025 at 10:45 AM
I have written a new draft for my blog about the potential damages that can be caused by a #geomagneticstorm. I am looking for someone familiar with this topic to review it for accuracy. If this is you, please write me a message. If this is not you, please consider boosting this message.
October 11, 2025 at 5:41 PM
Reposted by Florian U. Jehn
New post on my blog. I summarized Peter Turchin's book "End Times: Elites, Counter-Elites, and the Path of Political Disintegration". The post gives an overview of how #structuraldemographictheory works and how this explains the present political and social […]

[Original post on fediscience.org]
October 1, 2025 at 11:38 AM
New post on my blog. I summarized Peter Turchin's book "End Times: Elites, Counter-Elites, and the Path of Political Disintegration". The post gives an overview of how #structuraldemographictheory works and how this explains the present political and social […]

[Original post on fediscience.org]
October 1, 2025 at 11:38 AM
Reposted by Florian U. Jehn
(1/4) We modeled how global food trade would collapse after catastrophic events like nuclear war or infrastructure loss. It matters enormously where damage occurs, not just how much. Especially, in nuclear winter many countries would loose the majority of […]

[Original post on fediscience.org]
September 30, 2025 at 10:23 AM
(1/4) We modeled how global food trade would collapse after catastrophic events like nuclear war or infrastructure loss. It matters enormously where damage occurs, not just how much. Especially, in nuclear winter many countries would loose the majority of […]

[Original post on fediscience.org]
September 30, 2025 at 10:23 AM
Reposted by Florian U. Jehn
New preprint: "The Largest Crop Production Shocks: Magnitude, Causes and Frequency"

Large #cropfailures happen regularly around the world, threatening #foodsecurity. We analyzed sixty years of global crop production data and found that every country has […]

[Original post on fediscience.org]
September 4, 2025 at 5:37 PM
New preprint: "The Largest Crop Production Shocks: Magnitude, Causes and Frequency"

Large #cropfailures happen regularly around the world, threatening #foodsecurity. We analyzed sixty years of global crop production data and found that every country has […]

[Original post on fediscience.org]
September 4, 2025 at 5:37 PM
Reposted by Florian U. Jehn
#climatechange, #nuclearwinter, and #stratosphericaerosolinjection are all human-made interventions in the climate system. They share the potential to be massively disruptive to the habitability of this planet. Usually, we see them as separate catastrophes […]

[Original post on fediscience.org]
September 3, 2025 at 9:05 AM
#climatechange, #nuclearwinter, and #stratosphericaerosolinjection are all human-made interventions in the climate system. They share the potential to be massively disruptive to the habitability of this planet. Usually, we see them as separate catastrophes […]

[Original post on fediscience.org]
September 3, 2025 at 9:05 AM
Reposted by Florian U. Jehn
New theory on how #societalcollapse works just dropped. In his book "Goliath’s Curse: The History and Future of Societal Collapse”, @lukekemp describes how human societies repeatedly fall into the same trap: when resources become easily controlled and people […]

[Original post on fediscience.org]
August 6, 2025 at 7:54 AM
New theory on how #societalcollapse works just dropped. In his book "Goliath’s Curse: The History and Future of Societal Collapse”, @lukekemp describes how human societies repeatedly fall into the same trap: when resources become easily controlled and people […]

[Original post on fediscience.org]
August 6, 2025 at 7:54 AM
Reposted by Florian U. Jehn
Der wichtigste Gedanke, wenn mal wieder berichtet wird, dass die Bahn „Verluste“ macht:

Wie hoch sind doch gleich die jährlichen Gewinne im Bundeshaushalt durch den Betrieb der Autobahnen?
August 1, 2025 at 11:02 AM
Have been doing some nature photography for the last two years or so. Was thinking about sharing a few here. Starting with one of my favorites. This very cute little #mouse.

#nature #photography
July 24, 2025 at 3:38 PM
Reposted by Florian U. Jehn
New paper is out: The State of Global Catastrophic Risk Research: A Bibliometric Review.

I am quite happy with this one. I think the paper gives a nice overview of what people in the global catastrophic risk community think about and what their research […]

[Original post on fediscience.org]
July 22, 2025 at 10:21 AM
New paper is out: The State of Global Catastrophic Risk Research: A Bibliometric Review.

I am quite happy with this one. I think the paper gives a nice overview of what people in the global catastrophic risk community think about and what their research […]

[Original post on fediscience.org]
July 22, 2025 at 10:21 AM
Can really recommend to go hiking along the #rhine
July 21, 2025 at 10:34 AM
Time for updates on my blog again. However, not only the articles, but also the infrastructure. Thanks to @rogue_scholar now every post has a DOI and can be cited. Also, to make things look nicer, every post now has its on fitting picture at the start.

When […]

[Original post on fediscience.org]
July 16, 2025 at 8:14 AM
Reposted by Florian U. Jehn
To prepare you need to know what you might face. This is true for an individual, as well as a society. To make it a bit easier to figure this out on a societal level, I aggregated a number of sources that try to assess what challenges humanity might face […]

[Original post on fediscience.org]
June 19, 2025 at 6:45 AM