John Kennedy
@micefearboggis.bsky.social
Occasional climate scientist, diagram monkey, probabilistic historian, science anti-communicator. All views and opinions are my own. This is not, sadly, a promise of novelty: it’s a disclaimer. He/him. https://www.jkclimate.fr/
Reposted by John Kennedy
A long day, but grabbed some painting time before the light became too poor. Oil on panel, 40 x 50cm
#oilpainting #landscape #hills
#oilpainting #landscape #hills
November 24, 2025 at 5:51 PM
A long day, but grabbed some painting time before the light became too poor. Oil on panel, 40 x 50cm
#oilpainting #landscape #hills
#oilpainting #landscape #hills
Reposted by John Kennedy
Journals - all journals - exist to launder expert judgement. The more prestigious the journal, the cleaner the product.
In Nature, you can say you did something "based on…our expert judgement". 🫠
November 13, 2025 at 12:56 PM
Journals - all journals - exist to launder expert judgement. The more prestigious the journal, the cleaner the product.
Say hello to my little friend, Charlie Brown.
Rosebud, Charlie Brown.
I wish for you in the future to find someone who will mourn you when you are gone, Charlie Brown. Respectfully.
November 24, 2025 at 1:56 PM
Say hello to my little friend, Charlie Brown.
Reposted by John Kennedy
November 22, 2025 at 5:37 PM
Reposted by John Kennedy
Let's compare our world models. I find that different people seem to have rather distinct internal world models. E.g. I personally have neither visual imagination nor an inner voice, found it weird others do. Here is a quick google forms to check idea:
docs.google.com/forms/d/e/1F...
docs.google.com/forms/d/e/1F...
World-models in your head
Talking with a lot of people, they have rather shocking different kinds of world-models. I believe that people have somewhat specialized simulators. Let me list some and then give you the chance to ad...
docs.google.com
November 24, 2025 at 1:31 AM
Let's compare our world models. I find that different people seem to have rather distinct internal world models. E.g. I personally have neither visual imagination nor an inner voice, found it weird others do. Here is a quick google forms to check idea:
docs.google.com/forms/d/e/1F...
docs.google.com/forms/d/e/1F...
November 22, 2025 at 5:37 PM
Reposted by John Kennedy
It’s that time of year when we celebrate the celebrated, reward the rewarded, and cite the cited in a game everyone knows is meaningless and rigged.
diagrammonkey.wordpress.com/2021/11/17/t...
diagrammonkey.wordpress.com/2021/11/17/t...
The 7590 most puissant researchers of the year
Our biannual list recognises the most influential researchers, the true pioneers of science, the giants on whose shoulders the rest of us stand like so many flakes of dandruff, the ones who made th…
diagrammonkey.wordpress.com
November 17, 2025 at 2:26 PM
It’s that time of year when we celebrate the celebrated, reward the rewarded, and cite the cited in a game everyone knows is meaningless and rigged.
diagrammonkey.wordpress.com/2021/11/17/t...
diagrammonkey.wordpress.com/2021/11/17/t...
Reposted by John Kennedy
The thirty year period is a sort of convenient compromise. For some variables it is longer than it needs to be, for others shorter. And yet, it’s become this weird magic number that somehow “defines” climate.
November 17, 2025 at 6:46 PM
The thirty year period is a sort of convenient compromise. For some variables it is longer than it needs to be, for others shorter. And yet, it’s become this weird magic number that somehow “defines” climate.
It’s that time of year when we celebrate the celebrated, reward the rewarded, and cite the cited in a game everyone knows is meaningless and rigged.
diagrammonkey.wordpress.com/2021/11/17/t...
diagrammonkey.wordpress.com/2021/11/17/t...
The 7590 most puissant researchers of the year
Our biannual list recognises the most influential researchers, the true pioneers of science, the giants on whose shoulders the rest of us stand like so many flakes of dandruff, the ones who made th…
diagrammonkey.wordpress.com
November 17, 2025 at 2:26 PM
It’s that time of year when we celebrate the celebrated, reward the rewarded, and cite the cited in a game everyone knows is meaningless and rigged.
diagrammonkey.wordpress.com/2021/11/17/t...
diagrammonkey.wordpress.com/2021/11/17/t...
Reposted by John Kennedy
Taking the Monte Carlo out of Monte Carlo
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Taking the Monte Carlo out of Monte Carlo
A typical undergraduate laboratory experiment will have you measure a few quantities, calculate some combination of these and then estimate uncertainty in the calculated value. Usually, the example…
diagrammonkey.wordpress.com
November 13, 2025 at 3:49 PM
Taking the Monte Carlo out of Monte Carlo
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Taking the Monte Carlo out of Monte Carlo
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Taking the Monte Carlo out of Monte Carlo
A typical undergraduate laboratory experiment will have you measure a few quantities, calculate some combination of these and then estimate uncertainty in the calculated value. Usually, the example…
diagrammonkey.wordpress.com
November 13, 2025 at 3:49 PM
Taking the Monte Carlo out of Monte Carlo
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Notes on a paper about a systematic approach for reducing the size of ensembles needed for Monte Carlo style uncertainty calculations.
diagrammonkey.wordpress.com/2025/11/13/t...
Do you take 10,000 Monte Carlo samples into the shower*? Now you can just wash and go**.
* uncertainty estimation
** use far fewer samples.
www.ptb.de/cms/en/ptb/f...
* uncertainty estimation
** use far fewer samples.
www.ptb.de/cms/en/ptb/f...
A practically oriented efficient alternative to the Monte Carlo method for measurement uncertainty estimation
A novel method for numerical measurement uncertainty estimation has been recently developed at the PTB, offering a computationally efficient alternative to the widely used Monte Carlo method (MCM). Th...
www.ptb.de
November 13, 2025 at 2:09 PM
Do you take 10,000 Monte Carlo samples into the shower*? Now you can just wash and go**.
* uncertainty estimation
** use far fewer samples.
www.ptb.de/cms/en/ptb/f...
* uncertainty estimation
** use far fewer samples.
www.ptb.de/cms/en/ptb/f...
Journals - all journals - exist to launder expert judgement. The more prestigious the journal, the cleaner the product.
In Nature, you can say you did something "based on…our expert judgement". 🫠
November 13, 2025 at 12:56 PM
Journals - all journals - exist to launder expert judgement. The more prestigious the journal, the cleaner the product.
Reposted by John Kennedy
📢Global Carbon Budget 2025📢
Fossil CO2 emissions continue to rise in 2025 while the terrestrial carbon sink recovers to pre-El Niño strength.
The key findings are covered in two reports this year:
* ESSDD (preprint): essd.copernicus.org/preprints/es...
* Nature: www.nature.com/articles/s41...
1/
Fossil CO2 emissions continue to rise in 2025 while the terrestrial carbon sink recovers to pre-El Niño strength.
The key findings are covered in two reports this year:
* ESSDD (preprint): essd.copernicus.org/preprints/es...
* Nature: www.nature.com/articles/s41...
1/
November 13, 2025 at 7:07 AM
📢Global Carbon Budget 2025📢
Fossil CO2 emissions continue to rise in 2025 while the terrestrial carbon sink recovers to pre-El Niño strength.
The key findings are covered in two reports this year:
* ESSDD (preprint): essd.copernicus.org/preprints/es...
* Nature: www.nature.com/articles/s41...
1/
Fossil CO2 emissions continue to rise in 2025 while the terrestrial carbon sink recovers to pre-El Niño strength.
The key findings are covered in two reports this year:
* ESSDD (preprint): essd.copernicus.org/preprints/es...
* Nature: www.nature.com/articles/s41...
1/
Reposted by John Kennedy
The most valid question (I don't seeing asked outside philosophy circles), is whether our quality of life (is there something else relevant?) is bettered by the technology. If not, wth are we playing at?
November 13, 2025 at 2:36 AM
The most valid question (I don't seeing asked outside philosophy circles), is whether our quality of life (is there something else relevant?) is bettered by the technology. If not, wth are we playing at?
Reposted by John Kennedy
Climate indicators - Global mean temperature
November 11, 2025 at 3:56 PM
Climate indicators - Global mean temperature
Climate indicators - Global mean temperature
November 11, 2025 at 3:56 PM
Climate indicators - Global mean temperature
Reposted by John Kennedy
Monthly climate dashboard
Now with all global temperature datasets updated to September or October.
www.jkclimate.fr/MonthlyDashb...
Now with all global temperature datasets updated to September or October.
www.jkclimate.fr/MonthlyDashb...
November 11, 2025 at 8:50 AM
Monthly climate dashboard
Now with all global temperature datasets updated to September or October.
www.jkclimate.fr/MonthlyDashb...
Now with all global temperature datasets updated to September or October.
www.jkclimate.fr/MonthlyDashb...
Reposted by John Kennedy
The thing about “intentional” cheesemaking is that it has to be preceded by “unintentional” cheesemaking and then “intentional” consumption of whatever the hell that was followed by a period in which the kind of person who would do that has to convince everyone else it’s a good idea too.
November 6, 2025 at 10:15 AM
The thing about “intentional” cheesemaking is that it has to be preceded by “unintentional” cheesemaking and then “intentional” consumption of whatever the hell that was followed by a period in which the kind of person who would do that has to convince everyone else it’s a good idea too.
Reposted by John Kennedy
At some point I played my last game of chasing with my friends in school, without realising it would be our last game.
However, that means one of us is still IT, and doesn't even know. Forever chasing people who don't know they're being chased.
I think about this all the time. Is it me? Am I IT?
However, that means one of us is still IT, and doesn't even know. Forever chasing people who don't know they're being chased.
I think about this all the time. Is it me? Am I IT?
November 9, 2025 at 12:22 PM
At some point I played my last game of chasing with my friends in school, without realising it would be our last game.
However, that means one of us is still IT, and doesn't even know. Forever chasing people who don't know they're being chased.
I think about this all the time. Is it me? Am I IT?
However, that means one of us is still IT, and doesn't even know. Forever chasing people who don't know they're being chased.
I think about this all the time. Is it me? Am I IT?
Reposted by John Kennedy
Artist be like if I shift this line 0.05 cm to the left, increase overlay by 2%, and move this character’s head slightly by 3° will make a life changing difference that everyone notices
November 7, 2025 at 1:40 AM
Artist be like if I shift this line 0.05 cm to the left, increase overlay by 2%, and move this character’s head slightly by 3° will make a life changing difference that everyone notices
Reposted by John Kennedy
Quasi monthly update of the monthly climate dashboard
Update with:
• preliminary October data
• smaller files for faster loading
• bug fix for overlong plot titles
Some things to look out for, a short 🧵
www.jkclimate.fr/MonthlyDashb...
Update with:
• preliminary October data
• smaller files for faster loading
• bug fix for overlong plot titles
Some things to look out for, a short 🧵
www.jkclimate.fr/MonthlyDashb...
November 7, 2025 at 12:03 PM
Quasi monthly update of the monthly climate dashboard
Update with:
• preliminary October data
• smaller files for faster loading
• bug fix for overlong plot titles
Some things to look out for, a short 🧵
www.jkclimate.fr/MonthlyDashb...
Update with:
• preliminary October data
• smaller files for faster loading
• bug fix for overlong plot titles
Some things to look out for, a short 🧵
www.jkclimate.fr/MonthlyDashb...