Per Unneberg
@percyfal.bsky.social
Population genomicist. Musician. Allergic to cosmic debris.
Reposted by Per Unneberg
As projected here www.nature.com/articles/s41... we are steadily moving toward a situation where are major town or city runs out of water
There are early signs of this everywhere, right now Iran seems to be a hotspot at ~1.5ºC of heating
We are *utterly* unprepared for what comes at 1.6, 1.7 & 2ºC
There are early signs of this everywhere, right now Iran seems to be a hotspot at ~1.5ºC of heating
We are *utterly* unprepared for what comes at 1.6, 1.7 & 2ºC
November 23, 2025 at 8:28 AM
As projected here www.nature.com/articles/s41... we are steadily moving toward a situation where are major town or city runs out of water
There are early signs of this everywhere, right now Iran seems to be a hotspot at ~1.5ºC of heating
We are *utterly* unprepared for what comes at 1.6, 1.7 & 2ºC
There are early signs of this everywhere, right now Iran seems to be a hotspot at ~1.5ºC of heating
We are *utterly* unprepared for what comes at 1.6, 1.7 & 2ºC
Sign the pact, record your story. Join the global movement to make polluters pay: act.gp/3RIc9dq
Polluters broke it, we're paying for it. Make Polluters Pay
Sign the pact, record your story. Join the global movement to make polluters pay.
act.gp
November 20, 2025 at 2:46 PM
Sign the pact, record your story. Join the global movement to make polluters pay: act.gp/3RIc9dq
Reposted by Per Unneberg
We recently published a report that serves as a warning to humanity that we are hurtling towards climate chaos. More info here: doi.org/10.1093/bios...
November 20, 2025 at 4:16 AM
We recently published a report that serves as a warning to humanity that we are hurtling towards climate chaos. More info here: doi.org/10.1093/bios...
Bra artikel av @peteralestig.bsky.social som tar upp problemen med ekonomisk tillväxtteori och effektivisering. Dessa ämnen berörs alltför lite i dagens media.
www.dn.se/ekonomi/pete...
www.dn.se/ekonomi/pete...
Peter Alestig: Trump spår oljeboom – och han kan få rätt
Donald Trump har fått internationella energiorganet IEA att backa – och spå en boom inom fossil energi. Och han kan ha rätt, skriver DN:s Peter Alestig.
www.dn.se
November 15, 2025 at 10:04 AM
Bra artikel av @peteralestig.bsky.social som tar upp problemen med ekonomisk tillväxtteori och effektivisering. Dessa ämnen berörs alltför lite i dagens media.
www.dn.se/ekonomi/pete...
www.dn.se/ekonomi/pete...
Reposted by Per Unneberg
Impact of flights on global warming severely underestimated by many carbon calculators & offset schemes that don’t properly account for taxiing, sub-optimal routing or non-CO2 climate effects which are larger component:
www.newscientist.com/article/2502...
Research paper:
doi.org/10.1038/s432...
www.newscientist.com/article/2502...
Research paper:
doi.org/10.1038/s432...
Your flight emissions are way higher than carbon calculators suggest
Existing tools that work out the carbon footprint of flights greatly underestimate their warming impact, say the makers of a new calculator
www.newscientist.com
November 3, 2025 at 8:12 AM
Impact of flights on global warming severely underestimated by many carbon calculators & offset schemes that don’t properly account for taxiing, sub-optimal routing or non-CO2 climate effects which are larger component:
www.newscientist.com/article/2502...
Research paper:
doi.org/10.1038/s432...
www.newscientist.com/article/2502...
Research paper:
doi.org/10.1038/s432...
Reposted by Per Unneberg
"You can’t reboot the planet if you crash it" | My commentary on Bill Gates' flawed new climate missive for @thebulletin.org: thebulletin.org/2025/10/you-...
You can’t reboot the planet if you crash it
What Gates is putting forward aren’t legitimate arguments that can be made in good faith. They are shopworn fossil fuel industry talking points.
thebulletin.org
October 31, 2025 at 6:35 PM
"You can’t reboot the planet if you crash it" | My commentary on Bill Gates' flawed new climate missive for @thebulletin.org: thebulletin.org/2025/10/you-...
Reposted by Per Unneberg
I strongly agree with this thread, with one clarification: Whether civilization will survive 3C is in my view at least an open question. Human survival is different from survival of civilization. The former is likely, even for the worst expected climate impacts, but the latter is not assured
I wanted to offer some thoughts on the Gates climate memo that has been circulating this week. While I can't directly speak for others, I can say that my own response is one of dismay & deep frustration (and that this view is shared by many climate/Earth scientists). [1/n]
October 30, 2025 at 6:07 PM
I strongly agree with this thread, with one clarification: Whether civilization will survive 3C is in my view at least an open question. Human survival is different from survival of civilization. The former is likely, even for the worst expected climate impacts, but the latter is not assured
Reposted by Per Unneberg
I keep having the experience of people in this world relating to me their shock upon hearing my (pretty "mainstream") climate science perspective on these kinds of issues. So many influential people still believe a +3C warmer world is just "the exact weather from the 20th century, but 3C warmer."
October 30, 2025 at 8:18 PM
I keep having the experience of people in this world relating to me their shock upon hearing my (pretty "mainstream") climate science perspective on these kinds of issues. So many influential people still believe a +3C warmer world is just "the exact weather from the 20th century, but 3C warmer."
Reposted by Per Unneberg
In a 2024 paper criticizing the 'billion-dollar-disasters' database, Roger Pielke Jr. published analysis that is best described as a Russian-doll of errors.
Here's my in-depth take down of his appallingly bad work.
economicsfromthetopdown.com/2025/10/26/r...
Here's my in-depth take down of his appallingly bad work.
economicsfromthetopdown.com/2025/10/26/r...
Roger Pielke Jr.’s Appallingly Bad Analysis of Billion Dollar Disasters – Economics from the Top Down
In a recent paper called Scientific integrity and U.S. “Billion Dollar Disasters”, Roger Pielke Jr. published a chart that's so bad I've devoted a whole essay to debunking it.
economicsfromthetopdown.com
October 26, 2025 at 3:24 PM
In a 2024 paper criticizing the 'billion-dollar-disasters' database, Roger Pielke Jr. published analysis that is best described as a Russian-doll of errors.
Here's my in-depth take down of his appallingly bad work.
economicsfromthetopdown.com/2025/10/26/r...
Here's my in-depth take down of his appallingly bad work.
economicsfromthetopdown.com/2025/10/26/r...
Reposted by Per Unneberg
This well-made documentary series is asking the questions we should all be.
Given that it's FREE to view, it would make an excellent starting point for discussions in schools, universities, and community centres.
Highly recommended.
Given that it's FREE to view, it would make an excellent starting point for discussions in schools, universities, and community centres.
Highly recommended.
Global Warning: Ep 2 Against the tide.
How do we adapt to what is coming?
The nice people at Al Jazeera have made this series free to watch. I hope you all share it widely.
#Climate #ClimateCrisis #PublicServiceBroadcasting
📺 👉 www.aljazeera.com/video/featur...
How do we adapt to what is coming?
The nice people at Al Jazeera have made this series free to watch. I hope you all share it widely.
#Climate #ClimateCrisis #PublicServiceBroadcasting
📺 👉 www.aljazeera.com/video/featur...
October 18, 2025 at 10:42 AM
This well-made documentary series is asking the questions we should all be.
Given that it's FREE to view, it would make an excellent starting point for discussions in schools, universities, and community centres.
Highly recommended.
Given that it's FREE to view, it would make an excellent starting point for discussions in schools, universities, and community centres.
Highly recommended.
Reposted by Per Unneberg
Holy wow, +3.5 ppm CO₂ last year, up from +2.4 ppm average the past decade, and +0.6 ppm in the 1960s.
It gets scarier the closer you look at it. All this is a stress test for the planet, and it's buckling.
Two big reasons for the massive increase: wildfires, and the ocean sinks are shutting down.
It gets scarier the closer you look at it. All this is a stress test for the planet, and it's buckling.
Two big reasons for the massive increase: wildfires, and the ocean sinks are shutting down.
October 16, 2025 at 7:02 AM
Holy wow, +3.5 ppm CO₂ last year, up from +2.4 ppm average the past decade, and +0.6 ppm in the 1960s.
It gets scarier the closer you look at it. All this is a stress test for the planet, and it's buckling.
Two big reasons for the massive increase: wildfires, and the ocean sinks are shutting down.
It gets scarier the closer you look at it. All this is a stress test for the planet, and it's buckling.
Two big reasons for the massive increase: wildfires, and the ocean sinks are shutting down.
Reposted by Per Unneberg
I was honoured to be invited to give a talk on AviList, the new unified global checklist of birds, at the Delta Birding Festival 2+ weeks ago, and the organizers just sent me a link to a YouTube video of my talk: www.youtube.com/watch?v=QO5x... #birds #ornithology #taxonomy
AviList: a unified global bird checklist - Per Alström
YouTube video by Delta Birding Festival
www.youtube.com
October 6, 2025 at 7:42 PM
I was honoured to be invited to give a talk on AviList, the new unified global checklist of birds, at the Delta Birding Festival 2+ weeks ago, and the organizers just sent me a link to a YouTube video of my talk: www.youtube.com/watch?v=QO5x... #birds #ornithology #taxonomy
Reposted by Per Unneberg
Speaking of voices under attack…can we be just as loud about Black journalists and comedians who are silenced, even by our so-called liberal outlets.
• Joy Reid
• Don Lemon
• Melissa Harris-Perry
• Tiffany Cross
• Jemele Hill
• Marc Lamont Hill
• Karen Attiah
• Amber Ruffin
• Joy Reid
• Don Lemon
• Melissa Harris-Perry
• Tiffany Cross
• Jemele Hill
• Marc Lamont Hill
• Karen Attiah
• Amber Ruffin
September 25, 2025 at 4:40 AM
Speaking of voices under attack…can we be just as loud about Black journalists and comedians who are silenced, even by our so-called liberal outlets.
• Joy Reid
• Don Lemon
• Melissa Harris-Perry
• Tiffany Cross
• Jemele Hill
• Marc Lamont Hill
• Karen Attiah
• Amber Ruffin
• Joy Reid
• Don Lemon
• Melissa Harris-Perry
• Tiffany Cross
• Jemele Hill
• Marc Lamont Hill
• Karen Attiah
• Amber Ruffin
Reposted by Per Unneberg
In the first seven days since I launched this new game, almost ten thousand people from 82 countries have played it. (Top cities so far: New York City, Zurich, Toronto, Chicago, Berlin, Vienna, Stockholm)
What topics would you like me to add next?
dataguessr.com
What topics would you like me to add next?
dataguessr.com
Dataguessr
Update your knowledge of the world. One quiz at a time.
dataguessr.com
September 19, 2025 at 3:17 PM
In the first seven days since I launched this new game, almost ten thousand people from 82 countries have played it. (Top cities so far: New York City, Zurich, Toronto, Chicago, Berlin, Vienna, Stockholm)
What topics would you like me to add next?
dataguessr.com
What topics would you like me to add next?
dataguessr.com
Reposted by Per Unneberg
SINGER, our ARG inference method, is finally published and freely available online:
doi.org/10.1038/s415...
It was a long journey – 16 months from initial submission to acceptance. Is it just me, or has peer review gotten more arduous lately? 4+ rounds of review isn't so unusual these days...
doi.org/10.1038/s415...
It was a long journey – 16 months from initial submission to acceptance. Is it just me, or has peer review gotten more arduous lately? 4+ rounds of review isn't so unusual these days...
Robust and accurate Bayesian inference of genome-wide genealogies for hundreds of genomes - Nature Genetics
SINGER is a method for creating ancestral recombination graphs to understand the genealogical history of genomes. The method has increased speed, and thus scalability, without sacrificing accuracy.
doi.org
September 11, 2025 at 3:50 AM
SINGER, our ARG inference method, is finally published and freely available online:
doi.org/10.1038/s415...
It was a long journey – 16 months from initial submission to acceptance. Is it just me, or has peer review gotten more arduous lately? 4+ rounds of review isn't so unusual these days...
doi.org/10.1038/s415...
It was a long journey – 16 months from initial submission to acceptance. Is it just me, or has peer review gotten more arduous lately? 4+ rounds of review isn't so unusual these days...
Reposted by Per Unneberg
De tre mest profilerade skolorna/förskolorna med den allt mer kritiserade engelska profileringen har alla tydliga kopplingar till regeringspartierna. Varför säger vi inte rätt ut att det här är stört?
September 3, 2025 at 6:21 PM
De tre mest profilerade skolorna/förskolorna med den allt mer kritiserade engelska profileringen har alla tydliga kopplingar till regeringspartierna. Varför säger vi inte rätt ut att det här är stört?
Reposted by Per Unneberg
Such an exciting diversity and quality of presentations related to the evolution of vision and opsins at #ESEB2025! I regret we did not organize an associated symposium on these topics. To make up for it, please pop by my poster today (035) and we can have a mini symposium right here!
August 18, 2025 at 11:01 AM
Such an exciting diversity and quality of presentations related to the evolution of vision and opsins at #ESEB2025! I regret we did not organize an associated symposium on these topics. To make up for it, please pop by my poster today (035) and we can have a mini symposium right here!
Want to know more about ecological adaption in krill? Come listen to me talk about population genomics of the Northern krill. Session Evolutionary genomics (S23.02). #eseb2025
August 18, 2025 at 6:37 AM
Want to know more about ecological adaption in krill? Come listen to me talk about population genomics of the Northern krill. Session Evolutionary genomics (S23.02). #eseb2025
Reposted by Per Unneberg
1. "'Trusting the experts is not a feature of either a science or democracy," Kennedy said."
It's literally a vital feature of both science and of representative democracy.
I've written a fair bit about trust in expertise as a vital mechanism in the collective epistemology of science.
It's literally a vital feature of both science and of representative democracy.
I've written a fair bit about trust in expertise as a vital mechanism in the collective epistemology of science.
RFK Jr. in interview with Scripps News: ‘Trusting the experts is not science’
HHS Secretary RFK Jr. sat down with Scripps News for a wide-ranging interview, discussing mRNA vaccine funding policy changes and a recent shooting at the Centers for Disease Control and Prevention.
www.scrippsnews.com
August 12, 2025 at 4:48 AM
1. "'Trusting the experts is not a feature of either a science or democracy," Kennedy said."
It's literally a vital feature of both science and of representative democracy.
I've written a fair bit about trust in expertise as a vital mechanism in the collective epistemology of science.
It's literally a vital feature of both science and of representative democracy.
I've written a fair bit about trust in expertise as a vital mechanism in the collective epistemology of science.
Reposted by Per Unneberg
Our new piece is out in @nature.com big mihi to all my co-authors it was a pleasure to work with you on this @lanipai.bsky.social @niiyokamigaabaw.bsky.social @napaaqtuk.bsky.social @sereananaepi.bsky.social @1nativesoilnerd.bsky.social Bradley Moggridge and Brittany Kamai
tinyurl.com/yc4y9kfk
tinyurl.com/yc4y9kfk
Decolonize scientific institutions, don’t just diversify them | Nature
Indigenous scholars set out eight steps to stop marginalization in academia and to enable a shared Indigenous agenda in science. Indigenous scholars set out eight steps to stop marginalization in academia and to enable a shared Indigenous agenda in science.
www.nature.com
August 8, 2025 at 7:25 PM
Our new piece is out in @nature.com big mihi to all my co-authors it was a pleasure to work with you on this @lanipai.bsky.social @niiyokamigaabaw.bsky.social @napaaqtuk.bsky.social @sereananaepi.bsky.social @1nativesoilnerd.bsky.social Bradley Moggridge and Brittany Kamai
tinyurl.com/yc4y9kfk
tinyurl.com/yc4y9kfk
Reposted by Per Unneberg
🥼 In an escalating climate and nature emergency there are *so* many ways that scientists use our skills and influence positively.
Want to know more? Check out Charlie's thread, and our brand new paper: www.nature.com/articles/s44168-025-00268-9
Want to know more? Check out Charlie's thread, and our brand new paper: www.nature.com/articles/s44168-025-00268-9
July 31, 2025 at 6:00 PM
🥼 In an escalating climate and nature emergency there are *so* many ways that scientists use our skills and influence positively.
Want to know more? Check out Charlie's thread, and our brand new paper: www.nature.com/articles/s44168-025-00268-9
Want to know more? Check out Charlie's thread, and our brand new paper: www.nature.com/articles/s44168-025-00268-9
Reposted by Per Unneberg
Claim: "Water vapor is a greenhouse gas!"
Reality: Yes, and there's more of it in a warmer atmosphere
-"CO2 is plant food!"
-pretty hard to eat when you're on fire
-"Climate has changed before!"
-We know, we told you that
-"Scientists don't know everything!"
- doesn't mean we know *nothing*
Reality: Yes, and there's more of it in a warmer atmosphere
-"CO2 is plant food!"
-pretty hard to eat when you're on fire
-"Climate has changed before!"
-We know, we told you that
-"Scientists don't know everything!"
- doesn't mean we know *nothing*
July 30, 2025 at 3:17 PM
Claim: "Water vapor is a greenhouse gas!"
Reality: Yes, and there's more of it in a warmer atmosphere
-"CO2 is plant food!"
-pretty hard to eat when you're on fire
-"Climate has changed before!"
-We know, we told you that
-"Scientists don't know everything!"
- doesn't mean we know *nothing*
Reality: Yes, and there's more of it in a warmer atmosphere
-"CO2 is plant food!"
-pretty hard to eat when you're on fire
-"Climate has changed before!"
-We know, we told you that
-"Scientists don't know everything!"
- doesn't mean we know *nothing*
Reposted by Per Unneberg
🧵Introducing the Trump Action Tracker website!
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
July 21, 2025 at 8:57 PM
🧵Introducing the Trump Action Tracker website!
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
Reposted by Per Unneberg
We see here a self-styled "honest broker" with decades of experience in downplaying climate change presenting an age-old climate denial trope: using *annual* rainfall data as argument against an increase in *extreme* rainfall.
Does he *really* not know better? Or assume his readers won't?
🧵1/5
Does he *really* not know better? Or assume his readers won't?
🧵1/5
July 12, 2025 at 2:59 PM
We see here a self-styled "honest broker" with decades of experience in downplaying climate change presenting an age-old climate denial trope: using *annual* rainfall data as argument against an increase in *extreme* rainfall.
Does he *really* not know better? Or assume his readers won't?
🧵1/5
Does he *really* not know better? Or assume his readers won't?
🧵1/5
Reposted by Per Unneberg
“Only 2 of 225 US biology PhD programs assessed offer annual salaries meeting basic living wages”
Sad parallel with our findings in Canada, recently published in PLOS One (Fraass et al. 2025)
Sad parallel with our findings in Canada, recently published in PLOS One (Fraass et al. 2025)
I've wanted to write this article for years. About my and other's struggles to even survive sometime in #academia. Thank you to the amazing editors at @plosbiology.org that gave me the forum to write this piece. #science
Too poor to science: How wealth determines who succeeds in STEM
From student to researcher, a career in science can come with a high price tag. This Perspective explores how persistent financial barriers limit who can succeed in science, revealing how wealth shape...
journals.plos.org
July 8, 2025 at 3:41 PM
“Only 2 of 225 US biology PhD programs assessed offer annual salaries meeting basic living wages”
Sad parallel with our findings in Canada, recently published in PLOS One (Fraass et al. 2025)
Sad parallel with our findings in Canada, recently published in PLOS One (Fraass et al. 2025)