Dan Visioni
@danvisioni.bsky.social
Climate scientist studying aerosols, chemistry, radiation, climate & society from Volcanoes 🌋and Climate Intervention. Assistant Professor at Cornell EAS, from 🇮🇹proudly🏳️🌈 More at https://dan-visioni.github.io/ and https://www.wcrp-climate.org/ci-overview
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Dan Visioni
@danvisioni.bsky.social
· Jan 30
We’re being told (or it is being implied) that we shouldn’t make political statements right now. But here’s the thing: respecting and recognizing the humanity of our transgender brothers and sisters (and of the whole LGBTQ community) is a matter of humanity, and one I am not willing to be silent on.
Reposted by Dan Visioni
Happy new year, and a terrible new year to your enemies
January 1, 2026 at 5:15 AM
Happy new year, and a terrible new year to your enemies
2025 was a weird year with its ups and downs, and its big fights and tears and lots of what I think is valuable work, and I said yes to many things I shouldn’t have, but I guess above all it was when I ended up on stage with NDT and on his podcast and we partook of his alcohol stash after.
January 1, 2026 at 4:49 AM
2025 was a weird year with its ups and downs, and its big fights and tears and lots of what I think is valuable work, and I said yes to many things I shouldn’t have, but I guess above all it was when I ended up on stage with NDT and on his podcast and we partook of his alcohol stash after.
Every "best movies" list that doesn't include Love Actually is cursed.
December 29, 2025 at 3:54 PM
Every "best movies" list that doesn't include Love Actually is cursed.
Reposted by Dan Visioni
I like Ramez a lot but I disagree with him here. First, let's agree that oil and gas production are a complex case to model, because oil at least is subject to the behavior of a cartel (OPEC) and gas is increasingly international, with a few big buyers and sellers
Because the fossil fuel industry talking point of "We're just little humble neutral suppliers meeting the demand asked of us" is making a comeback, please consider the words of a senior exec at one of America's largest gas suppliers:
December 28, 2025 at 9:46 PM
I like Ramez a lot but I disagree with him here. First, let's agree that oil and gas production are a complex case to model, because oil at least is subject to the behavior of a cartel (OPEC) and gas is increasingly international, with a few big buyers and sellers
Reposted by Dan Visioni
my editor told us to try to keep our "best of" lists to five or less, but i found a workaround...
the climate story of the year, imo, was attacks on science
the climate story of the year, imo, was attacks on science
Reflecting on a year of attacks on climate science (and three other stories)
One of the defining themes of the past 11 months, and certainly one most pertinent to the climate beat, was “attacks on science and expertise,” which seem likely to continue into 2026.
thebulletin.org
December 26, 2025 at 3:44 PM
my editor told us to try to keep our "best of" lists to five or less, but i found a workaround...
the climate story of the year, imo, was attacks on science
the climate story of the year, imo, was attacks on science
Just hopping in here to brag about my best gift this year courtesy of my mom. Happy holidays y’all!
December 25, 2025 at 8:49 PM
Just hopping in here to brag about my best gift this year courtesy of my mom. Happy holidays y’all!
Springer Nature sending me a “Your 2025 in review” like a Spotify wrapped is both hilarious and uh alarming
December 23, 2025 at 4:23 PM
Springer Nature sending me a “Your 2025 in review” like a Spotify wrapped is both hilarious and uh alarming
Being harassed at an NBA game by the “public relations” guy of a startup you just wrote an op-ed against and ending it in a shouting match is definitely an experience I did not have in my AGU bingo for 2025.
December 19, 2025 at 2:38 AM
Being harassed at an NBA game by the “public relations” guy of a startup you just wrote an op-ed against and ending it in a shouting match is definitely an experience I did not have in my AGU bingo for 2025.
Reposted by Dan Visioni
At an @agu.org Town Hall today, @ncar-ucar.bsky.social President Antonio Busalacchi spoke to #AGU25 attendees about what's at stake if NCAR is dismantled.
One attendee asked anyone who uses NCAR research to stand up. Almost everyone in the room stood.
Read more here:
eos.org/research-and...
One attendee asked anyone who uses NCAR research to stand up. Almost everyone in the room stood.
Read more here:
eos.org/research-and...
December 18, 2025 at 8:30 PM
At an @agu.org Town Hall today, @ncar-ucar.bsky.social President Antonio Busalacchi spoke to #AGU25 attendees about what's at stake if NCAR is dismantled.
One attendee asked anyone who uses NCAR research to stand up. Almost everyone in the room stood.
Read more here:
eos.org/research-and...
One attendee asked anyone who uses NCAR research to stand up. Almost everyone in the room stood.
Read more here:
eos.org/research-and...
Good to be here amongst family. @ncar-ucar.bsky.social
December 18, 2025 at 7:01 PM
Good to be here amongst family. @ncar-ucar.bsky.social
I’m going to be brutal: I think anyone that will engage with NSF on their request for feedback about how best to dismantle NCAR without just being clear it’s a shitty stupid plan - in the hope of getting some spoil, perhaps - needs to be shunned forever and globally.
December 17, 2025 at 11:11 PM
I’m going to be brutal: I think anyone that will engage with NSF on their request for feedback about how best to dismantle NCAR without just being clear it’s a shitty stupid plan - in the hope of getting some spoil, perhaps - needs to be shunned forever and globally.
Anything I were to say today about the NCAR news would probably put me at risk of having my Green Card revoked, so I'm going to have to shut up and turn my heartbreak and anger into something productive.
December 17, 2025 at 4:59 PM
Anything I were to say today about the NCAR news would probably put me at risk of having my Green Card revoked, so I'm going to have to shut up and turn my heartbreak and anger into something productive.
Kasatochi (2008), Sarychev (2009), Nabro (2011), and Raikoke (2019) all had higher sulfur contents than HT but a few things made HT stand out:
1) the WV, while huge, was rather far away from the tropopause, and advected up even higher, leading to a very small LW forcing
\cont
1) the WV, while huge, was rather far away from the tropopause, and advected up even higher, leading to a very small LW forcing
\cont
December 11, 2025 at 5:46 PM
Kasatochi (2008), Sarychev (2009), Nabro (2011), and Raikoke (2019) all had higher sulfur contents than HT but a few things made HT stand out:
1) the WV, while huge, was rather far away from the tropopause, and advected up even higher, leading to a very small LW forcing
\cont
1) the WV, while huge, was rather far away from the tropopause, and advected up even higher, leading to a very small LW forcing
\cont
I’m glad that Italian Cuisine has UNESCO status now because I look forward to my “Yes I’m Italian and I love pineapple on pizza” opinion having Crime Against Humanity status.
December 10, 2025 at 7:08 PM
I’m glad that Italian Cuisine has UNESCO status now because I look forward to my “Yes I’m Italian and I love pineapple on pizza” opinion having Crime Against Humanity status.
Reposted by Dan Visioni
Just published to wrap up the year: “Response of Tipping Elements to Different Strategies of Stratospheric Aerosol Injection”
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
December 2, 2025 at 2:50 PM
Just published to wrap up the year: “Response of Tipping Elements to Different Strategies of Stratospheric Aerosol Injection”
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
Just published to wrap up the year: “Response of Tipping Elements to Different Strategies of Stratospheric Aerosol Injection”
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
December 2, 2025 at 2:50 PM
Just published to wrap up the year: “Response of Tipping Elements to Different Strategies of Stratospheric Aerosol Injection”
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
We analyzed the response of various climate metrics relevant to a set of climate tipping element under SSP2-4.5 and under a set of SAI scenarios modeled using CESM2.
Reposted by Dan Visioni
Watch our new WCRP video!
See how global climate scientists work together to provide trusted, actionable climate information: https://loom.ly/pZxvxTg
#WCRP #WMO #OceanScience #OceanAction #ISC
See how global climate scientists work together to provide trusted, actionable climate information: https://loom.ly/pZxvxTg
#WCRP #WMO #OceanScience #OceanAction #ISC
December 2, 2025 at 7:00 AM
Watch our new WCRP video!
See how global climate scientists work together to provide trusted, actionable climate information: https://loom.ly/pZxvxTg
#WCRP #WMO #OceanScience #OceanAction #ISC
See how global climate scientists work together to provide trusted, actionable climate information: https://loom.ly/pZxvxTg
#WCRP #WMO #OceanScience #OceanAction #ISC
It’s so very easy to weaponize uncertainty:“We just can’t know if it’s safe, so better not to act at all”. Everyone is glad when the precautionary principle is used as a cudgel against something they already dislike, but the problem comes when it’s used to ban something you know works-like vaccines🤓
November 29, 2025 at 11:16 PM
It’s so very easy to weaponize uncertainty:“We just can’t know if it’s safe, so better not to act at all”. Everyone is glad when the precautionary principle is used as a cudgel against something they already dislike, but the problem comes when it’s used to ban something you know works-like vaccines🤓
For unfathomable reasons, the last class of the semester makes me *so emotional*, and that, coupled with the fact the students have the sweet yet terrible vice to clap when the last class ends and I say goodbye means I always conclude the semester muttering inaudible things trying not to cry.
November 24, 2025 at 10:02 PM
For unfathomable reasons, the last class of the semester makes me *so emotional*, and that, coupled with the fact the students have the sweet yet terrible vice to clap when the last class ends and I say goodbye means I always conclude the semester muttering inaudible things trying not to cry.
Reposted by Dan Visioni
COP30 text failures are more than one: failing to mention the necessity of fossil-fuel phase-out is an obvious one, but gaslighting the world over the fact that there is a chance of “keeping 1.5°C within reach” is another. The latter however is not any lighter: it directly enables the former.
November 22, 2025 at 11:25 PM
COP30 text failures are more than one: failing to mention the necessity of fossil-fuel phase-out is an obvious one, but gaslighting the world over the fact that there is a chance of “keeping 1.5°C within reach” is another. The latter however is not any lighter: it directly enables the former.
COP30 text failures are more than one: failing to mention the necessity of fossil-fuel phase-out is an obvious one, but gaslighting the world over the fact that there is a chance of “keeping 1.5°C within reach” is another. The latter however is not any lighter: it directly enables the former.
November 22, 2025 at 11:25 PM
COP30 text failures are more than one: failing to mention the necessity of fossil-fuel phase-out is an obvious one, but gaslighting the world over the fact that there is a chance of “keeping 1.5°C within reach” is another. The latter however is not any lighter: it directly enables the former.
When one reads reports/articles about “We’re on track for 2.6 degrees of warming” it would be useful to bear in mind that’s not peak warming that will be reached, that’s just an arbitrary cutoff value at a nice round date, 2100.
November 15, 2025 at 4:51 PM
When one reads reports/articles about “We’re on track for 2.6 degrees of warming” it would be useful to bear in mind that’s not peak warming that will be reached, that’s just an arbitrary cutoff value at a nice round date, 2100.
www.rollingstone.com/politics/pol...
@hollyjeanbuck.bsky.social, @davidho.bsky.social and I were interviewed by @rollingstone.com about the Trump admin and Climate Intervention research. Compared to initial hopes/worries, Trump admin has shown zero interest to support any kind of climate research.
@hollyjeanbuck.bsky.social, @davidho.bsky.social and I were interviewed by @rollingstone.com about the Trump admin and Climate Intervention research. Compared to initial hopes/worries, Trump admin has shown zero interest to support any kind of climate research.
Trump Is Kneecapping Some of the Boldest Plans to Fight Climate Change
Donald Trump's assault on climate innovation is also affecting scientists researching geoengineering methods like carbon-dioxide removal.
www.rollingstone.com
November 13, 2025 at 9:44 PM
www.rollingstone.com/politics/pol...
@hollyjeanbuck.bsky.social, @davidho.bsky.social and I were interviewed by @rollingstone.com about the Trump admin and Climate Intervention research. Compared to initial hopes/worries, Trump admin has shown zero interest to support any kind of climate research.
@hollyjeanbuck.bsky.social, @davidho.bsky.social and I were interviewed by @rollingstone.com about the Trump admin and Climate Intervention research. Compared to initial hopes/worries, Trump admin has shown zero interest to support any kind of climate research.
Reposted by Dan Visioni
Giving a bully your lunch money doesn't make them leave you alone. It shows them you're an easy mark and encourages them to demand more.
Appeasing fascists doesn't make them less fascist. It shows them you're weak and encourages them to demand more.
It's only ONE OF THE MOST REPEATED LESSONS EVER!
Appeasing fascists doesn't make them less fascist. It shows them you're weak and encourages them to demand more.
It's only ONE OF THE MOST REPEATED LESSONS EVER!
November 7, 2025 at 5:33 PM
Giving a bully your lunch money doesn't make them leave you alone. It shows them you're an easy mark and encourages them to demand more.
Appeasing fascists doesn't make them less fascist. It shows them you're weak and encourages them to demand more.
It's only ONE OF THE MOST REPEATED LESSONS EVER!
Appeasing fascists doesn't make them less fascist. It shows them you're weak and encourages them to demand more.
It's only ONE OF THE MOST REPEATED LESSONS EVER!
Reposted by Dan Visioni
We have more than enough evidence to conclude that the Trump administration
-is committed to attacking academia
-cannot be trusted to honor its commitments, nor to follow court orders
-has weaponized "fighting antisemitism" in bad faith
-will use Cornell's appeasement to go after other universities
-is committed to attacking academia
-cannot be trusted to honor its commitments, nor to follow court orders
-has weaponized "fighting antisemitism" in bad faith
-will use Cornell's appeasement to go after other universities
November 7, 2025 at 5:30 PM
We have more than enough evidence to conclude that the Trump administration
-is committed to attacking academia
-cannot be trusted to honor its commitments, nor to follow court orders
-has weaponized "fighting antisemitism" in bad faith
-will use Cornell's appeasement to go after other universities
-is committed to attacking academia
-cannot be trusted to honor its commitments, nor to follow court orders
-has weaponized "fighting antisemitism" in bad faith
-will use Cornell's appeasement to go after other universities