Kevin Schwarzwald
@kschwarzwald.bsky.social
Not all those who wander are lost. Climate variability and impacts by day, cities by evening, rock violin by night (sometimes all three at once).
Reposted by Kevin Schwarzwald
The IRI DL is a uniquely valuable resource for NOAA (and more) climate data. Over the last 27 years it had a huge impact (positive!) on my career. So long, and thanks for all the fish!
Columbia University's IRI Data Library (which I still sometimes call INGRID) will be retired iri.columbia.edu/resources/da...
a man with a beard is pouring soda into a glass
ALT: a man with a beard is pouring soda into a glass
media.tenor.com
November 12, 2025 at 7:01 PM
The IRI DL is a uniquely valuable resource for NOAA (and more) climate data. Over the last 27 years it had a huge impact (positive!) on my career. So long, and thanks for all the fish!
Reposted by Kevin Schwarzwald
Looking for a PhD in climate science?
Great opportunity to help modernise one of the iconic climate time series - Central England Temperature.
Led by @timosbornclim.bsky.social, with myself and Met Office collaborators: www.uea.ac.uk/course/phd-d...
Great opportunity to help modernise one of the iconic climate time series - Central England Temperature.
Led by @timosbornclim.bsky.social, with myself and Met Office collaborators: www.uea.ac.uk/course/phd-d...
PhD Redeveloping Central England Temperature: Modernising a Historic Climate Series, CASE project with Met Office (OSBORNT_U26SCI) 2026/27 | UEA
PhD Redeveloping Central England Temperature: Modernising a Historic Climate Series, CASE project with Met Office (OSBORNT_U26SCI) 2026/27 | UEA
www.uea.ac.uk
November 12, 2025 at 5:38 PM
Looking for a PhD in climate science?
Great opportunity to help modernise one of the iconic climate time series - Central England Temperature.
Led by @timosbornclim.bsky.social, with myself and Met Office collaborators: www.uea.ac.uk/course/phd-d...
Great opportunity to help modernise one of the iconic climate time series - Central England Temperature.
Led by @timosbornclim.bsky.social, with myself and Met Office collaborators: www.uea.ac.uk/course/phd-d...
Reposted by Kevin Schwarzwald
I know BlueSky has problems with humour so just to be clear: I, like everyone else, am aware that postdocs aren't real. I'm not spreading misinformation when I refer to them as if they exist, they're jokes and everyone knows that. Chill, ok?
November 8, 2025 at 3:20 PM
I know BlueSky has problems with humour so just to be clear: I, like everyone else, am aware that postdocs aren't real. I'm not spreading misinformation when I refer to them as if they exist, they're jokes and everyone knows that. Chill, ok?
Reposted by Kevin Schwarzwald
Thanks to the Illinois’ massive investment in transit, Chicago has a bright transit future, with the dawn coming next year:
—50% increase in every-10-min bus routes to 30 citywide
—8-minute midday headways on rail lines
—24-hour Orange Line service (Red & Blue already have it)
—50% increase in every-10-min bus routes to 30 citywide
—8-minute midday headways on rail lines
—24-hour Orange Line service (Red & Blue already have it)
Acting CTA President Nora Leerhsen’s ambitious plan would also expand — from 20 to 30 routes — the so-called “Frequent Bus Network” that provides service “every ten minutes or better” between 6 a.m. and 9 p.m.
trib.al/Va4Ri0r
trib.al/Va4Ri0r
CTA plans 24-hour service on Orange Line to Midway, thanks to mass transit bailout
Acting CTA President Nora Leerhsen’s ambitious plan would also expand — from 20 to 30 routes — the so-called “Frequent Bus Network” that provides service “every ten minutes or better” between 6 a.m. and 9 p.m.
trib.al
November 7, 2025 at 12:23 AM
Thanks to the Illinois’ massive investment in transit, Chicago has a bright transit future, with the dawn coming next year:
—50% increase in every-10-min bus routes to 30 citywide
—8-minute midday headways on rail lines
—24-hour Orange Line service (Red & Blue already have it)
—50% increase in every-10-min bus routes to 30 citywide
—8-minute midday headways on rail lines
—24-hour Orange Line service (Red & Blue already have it)
Reposted by Kevin Schwarzwald
Looking for a #PhD in #ClimateExtremes?
We are advertising a project attributing causes of recent #droughts using counter-factual storylines.
Based in #Edinburgh, working with Andrew Schurer, me, @gabihegerl.bsky.social, & @edhawkins.org
tinyurl.com/5n7b52fr
We are advertising a project attributing causes of recent #droughts using counter-factual storylines.
Based in #Edinburgh, working with Andrew Schurer, me, @gabihegerl.bsky.social, & @edhawkins.org
tinyurl.com/5n7b52fr
November 6, 2025 at 1:38 PM
Looking for a #PhD in #ClimateExtremes?
We are advertising a project attributing causes of recent #droughts using counter-factual storylines.
Based in #Edinburgh, working with Andrew Schurer, me, @gabihegerl.bsky.social, & @edhawkins.org
tinyurl.com/5n7b52fr
We are advertising a project attributing causes of recent #droughts using counter-factual storylines.
Based in #Edinburgh, working with Andrew Schurer, me, @gabihegerl.bsky.social, & @edhawkins.org
tinyurl.com/5n7b52fr
Reposted by Kevin Schwarzwald
New paper out in @egu.eu's Climate of the Past together with economists (@mbennedsen.bsky.social @erichillebrand.bsky.social) to apply their rate prediction tools to the Cenozoic stack for detecting the timing and duration of breakpoints. Really fun. @au.dk
cp.copernicus.org/articles/21/...
cp.copernicus.org/articles/21/...
Estimating breakpoints in the Cenozoic Era: an econometric approach
Abstract. This study presents a statistical time-domain approach for identifying transitions between climate states, referred to as breakpoints, using well-established econometric tools. Our approach ...
cp.copernicus.org
November 6, 2025 at 10:38 AM
New paper out in @egu.eu's Climate of the Past together with economists (@mbennedsen.bsky.social @erichillebrand.bsky.social) to apply their rate prediction tools to the Cenozoic stack for detecting the timing and duration of breakpoints. Really fun. @au.dk
cp.copernicus.org/articles/21/...
cp.copernicus.org/articles/21/...
first chinese-built trains in Central Europe about to go live with private operator WESTbahn, which is using them to enable an increase to half-hourly freqs on their Vienna - Salzburg (and beyond) service. (This is on top of the 2-4 tph by the federal railways on the same route)
Die Westbahn präsentierte heute 4 neue hochmoderne Doppelstockzüge. 🚆
Damit wächst die Gesamtkapazität der Flotte um +28% auf knapp 10.000 Sitzplätze.
Damit wächst die Gesamtkapazität der Flotte um +28% auf knapp 10.000 Sitzplätze.
November 3, 2025 at 5:38 PM
first chinese-built trains in Central Europe about to go live with private operator WESTbahn, which is using them to enable an increase to half-hourly freqs on their Vienna - Salzburg (and beyond) service. (This is on top of the 2-4 tph by the federal railways on the same route)
I know this is a result of construction costs and local opposition to construction impacts limiting investment primarily to existing (often former freight) ROWs ; but its just infuriating how many US cities’ rail networks look like they’re doing their best to avoid the people who would take them
October 29, 2025 at 6:34 PM
I know this is a result of construction costs and local opposition to construction impacts limiting investment primarily to existing (often former freight) ROWs ; but its just infuriating how many US cities’ rail networks look like they’re doing their best to avoid the people who would take them
Reposted by Kevin Schwarzwald
If you are interested in a postdoc position on the Stanford campus on the climate effects of a slowdown/shutdown of the Atlantic Meridional Overturning Circulation, please contact me.
Atmosphere or ocean modeling experience is a plus.
sustainablesolutions.stanford.edu/people/ken-c...
Atmosphere or ocean modeling experience is a plus.
sustainablesolutions.stanford.edu/people/ken-c...
October 28, 2025 at 1:50 PM
If you are interested in a postdoc position on the Stanford campus on the climate effects of a slowdown/shutdown of the Atlantic Meridional Overturning Circulation, please contact me.
Atmosphere or ocean modeling experience is a plus.
sustainablesolutions.stanford.edu/people/ken-c...
Atmosphere or ocean modeling experience is a plus.
sustainablesolutions.stanford.edu/people/ken-c...
Reposted by Kevin Schwarzwald
Climate change DEFINITELY affects hurricane:
STRENGTH: Warmer water is hurricane food
RAINFALL: Warm air holds more water vapor
SURGE: Warmer water expands, warmer ice melts, sea levels rise
PREDICTION: hotter seas mean faster intensification
STRENGTH: Warmer water is hurricane food
RAINFALL: Warm air holds more water vapor
SURGE: Warmer water expands, warmer ice melts, sea levels rise
PREDICTION: hotter seas mean faster intensification
October 28, 2025 at 1:48 PM
Climate change DEFINITELY affects hurricane:
STRENGTH: Warmer water is hurricane food
RAINFALL: Warm air holds more water vapor
SURGE: Warmer water expands, warmer ice melts, sea levels rise
PREDICTION: hotter seas mean faster intensification
STRENGTH: Warmer water is hurricane food
RAINFALL: Warm air holds more water vapor
SURGE: Warmer water expands, warmer ice melts, sea levels rise
PREDICTION: hotter seas mean faster intensification
Reposted by Kevin Schwarzwald
Possibly controversial opinion: Model spread is unconnected to real uncertainty. It can both underpredict (response of ENSO), and overpredict (CMIP6 ECS). Actual uncertainty needs a much more careful assessment of both model structural variations alongside observational constraints & model bias.
October 24, 2025 at 7:00 PM
Possibly controversial opinion: Model spread is unconnected to real uncertainty. It can both underpredict (response of ENSO), and overpredict (CMIP6 ECS). Actual uncertainty needs a much more careful assessment of both model structural variations alongside observational constraints & model bias.
Private Austrian rail operator WESTbahn is expanding, starting service on the southern line from Vienna, via the new high speed line between Graz and Klagenfurt. Still making a healthy profit on 2tph from Vienna west to Salzburg (on top of 2-4 tph by the federal railways)
wien.orf.at/stories/3326...
wien.orf.at/stories/3326...
Westbahn will Strecken von ÖBB übernehmen
Die Westbahn erweitert und verdichtet ihr Streckennetz. Ihre Züge sollen ab März auch auf der Südstrecke durch den neuen Koralmtunnel fahren. Als verzerrend empfindet die Westbahn die Finanzierung der...
wien.orf.at
October 24, 2025 at 1:52 AM
Private Austrian rail operator WESTbahn is expanding, starting service on the southern line from Vienna, via the new high speed line between Graz and Klagenfurt. Still making a healthy profit on 2tph from Vienna west to Salzburg (on top of 2-4 tph by the federal railways)
wien.orf.at/stories/3326...
wien.orf.at/stories/3326...
Reposted by Kevin Schwarzwald
He resigned as governor 4 years ago in the face of multiple scandals. He’s shown no contrition whatsoever. He gets a free pass every time a camera is in front of his face, and he’s a carpetbagger on top of it all.
October 21, 2025 at 12:33 PM
He resigned as governor 4 years ago in the face of multiple scandals. He’s shown no contrition whatsoever. He gets a free pass every time a camera is in front of his face, and he’s a carpetbagger on top of it all.
Ok the amount of time and effort saved for uptown folks by being able to catch an upstate-bound train in Harlem (with none of the Penn bullsh) instead of Penn would be lovely. I hope the run times aren’t too much slower than Amtrak…
ACTUAL GOOD TRANSIT NEWS ALERT: Metro-North will run to Albany, starting this spring.
And Amtrak is adding back one train to NYP-ALB and capping prices at $99.
And Amtrak is adding back one train to NYP-ALB and capping prices at $99.
October 20, 2025 at 6:30 PM
Ok the amount of time and effort saved for uptown folks by being able to catch an upstate-bound train in Harlem (with none of the Penn bullsh) instead of Penn would be lovely. I hope the run times aren’t too much slower than Amtrak…
Reposted by Kevin Schwarzwald
You've got to love studies like these: New carbon tax paper out in @aeajournals.bsky.social: Macroeconomics.
The headline: "I find that carbon taxes reduce emissions
as expected but also impair macroeconomic activity."
What to make of this, a quick 🧵
The headline: "I find that carbon taxes reduce emissions
as expected but also impair macroeconomic activity."
What to make of this, a quick 🧵
October 18, 2025 at 3:12 PM
You've got to love studies like these: New carbon tax paper out in @aeajournals.bsky.social: Macroeconomics.
The headline: "I find that carbon taxes reduce emissions
as expected but also impair macroeconomic activity."
What to make of this, a quick 🧵
The headline: "I find that carbon taxes reduce emissions
as expected but also impair macroeconomic activity."
What to make of this, a quick 🧵
Reposted by Kevin Schwarzwald
Join us for the next @iiasa.ac.at AI for Climate Science Seminar with Dim Coumou (VU Amsterdam/Beyond Weather) on
AI for (sub)seasonal forecasting-boosting predictability and understanding teleconnections
Register: iiasa.ac.at/events/oct-2...
Past and Future seminars: iiasa.ac.at/projects/ai-...
AI for (sub)seasonal forecasting-boosting predictability and understanding teleconnections
Register: iiasa.ac.at/events/oct-2...
Past and Future seminars: iiasa.ac.at/projects/ai-...
September 24, 2025 at 12:03 PM
Join us for the next @iiasa.ac.at AI for Climate Science Seminar with Dim Coumou (VU Amsterdam/Beyond Weather) on
AI for (sub)seasonal forecasting-boosting predictability and understanding teleconnections
Register: iiasa.ac.at/events/oct-2...
Past and Future seminars: iiasa.ac.at/projects/ai-...
AI for (sub)seasonal forecasting-boosting predictability and understanding teleconnections
Register: iiasa.ac.at/events/oct-2...
Past and Future seminars: iiasa.ac.at/projects/ai-...
Reposted by Kevin Schwarzwald
A lot of comments on Mars rovers or Moon landings, but it's important to remember that the planet NASA studies most is Earth. This is less about cutting flashy things like moonwalks and more about keeping communities in the dark on climate, weather, agriculture, pollution, natural hazards, and more.
NASA's Jet Propulsion Laboratory to lay off about 550 workers reut.rs/4302N2L
NASA's Jet Propulsion Laboratory to lay off about 550 workers
NASA's Jet Propulsion Laboratory said on Monday it will cut nearly 550 jobs as part of a restructuring, not related to the current U.S. government shutdown.
reut.rs
October 13, 2025 at 10:43 PM
A lot of comments on Mars rovers or Moon landings, but it's important to remember that the planet NASA studies most is Earth. This is less about cutting flashy things like moonwalks and more about keeping communities in the dark on climate, weather, agriculture, pollution, natural hazards, and more.
Reposted by Kevin Schwarzwald
An atmospheric general circulation model you can run on a Python Jupyter notebook?! Heck yeah! Check out this project- both an educational tool for undergraduates/graduate students, and a research tool for scientists interested in idealized climate modeling.
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
journals.ametsoc.org
October 13, 2025 at 7:35 PM
An atmospheric general circulation model you can run on a Python Jupyter notebook?! Heck yeah! Check out this project- both an educational tool for undergraduates/graduate students, and a research tool for scientists interested in idealized climate modeling.
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
Reposted by Kevin Schwarzwald
For so long, fossil fuel projects have said their contribution to climate change is "negligible".
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Quantifying the regional to global climate impacts of individual fossil fuel projects to inform decision-making - npj Climate Action
npj Climate Action - Quantifying the regional to global climate impacts of individual fossil fuel projects to inform decision-making
www.nature.com
October 13, 2025 at 10:07 AM
For so long, fossil fuel projects have said their contribution to climate change is "negligible".
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Reposted by Kevin Schwarzwald
We 👏🏻 are 👏🏻 the 👏🏻 three 👏🏻 percent
How many browsing tabs do you typically have open?*
1: 6%
2-5: 54%
6-10: 14%
11-20: 8%
21-30: 2%
More than 30: 3%
*across all windows, on desktop/laptop
yougov.co.uk/topics/techn...
1: 6%
2-5: 54%
6-10: 14%
11-20: 8%
21-30: 2%
More than 30: 3%
*across all windows, on desktop/laptop
yougov.co.uk/topics/techn...
October 8, 2025 at 7:11 PM
We 👏🏻 are 👏🏻 the 👏🏻 three 👏🏻 percent
Reposted by Kevin Schwarzwald
hope EU member states take this historical opportunity to NOT be weird xenophobic loser-monkeys and instead fast-track citizenship for researchers who relocate (as well as for their families)
This is probably a desired goal for the Trump regime? They have inconsistent preferences mind you so there's another sense in which this is undesired. But "drive out the intelligentsia and weaken academia" is, under this aspect, a favoured policy goal of theirs.
www.politico.eu/article/euro...
www.politico.eu/article/euro...
Top US researchers rush to relocate to Europe
U.S.-based applicants to a prestigious EU research scheme have increased five-fold.
www.politico.eu
October 3, 2025 at 6:52 AM
hope EU member states take this historical opportunity to NOT be weird xenophobic loser-monkeys and instead fast-track citizenship for researchers who relocate (as well as for their families)
Reposted by Kevin Schwarzwald
⚠️new(-ish) paper in Journal of Climate⚠️ i evaluated CMIP6 models' Pacific decadal SST variability and teleconnections... big takeaway is that models under-simulate temporal PDO/IPO variability on decadal timescales, likely affecting precip trends in the Southwest
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
journals.ametsoc.org
October 2, 2025 at 6:16 PM
⚠️new(-ish) paper in Journal of Climate⚠️ i evaluated CMIP6 models' Pacific decadal SST variability and teleconnections... big takeaway is that models under-simulate temporal PDO/IPO variability on decadal timescales, likely affecting precip trends in the Southwest
journals.ametsoc.org/view/journal...
journals.ametsoc.org/view/journal...
All the more reason for a Parigo-style regular feature about MTA news like they have in Paris :p
Back when I did this kind of thing, the pitch for why more NYC newsrooms should have dedicated MTA reporters—not even "transportation" generally, just MTA—was that the MTA's annual budget was larger than that of 10 states.
You see this particularly in the crime discussion nationally, but folks outside of New York City (and often times in New York City) do not grasp the scale and scope of the Metropolitan Transportation Authority.
October 2, 2025 at 2:35 PM
All the more reason for a Parigo-style regular feature about MTA news like they have in Paris :p
Reposted by Kevin Schwarzwald
my takeaway from climate week nyc is that "climate storytelling" is a little too much "we must reimagine our deepest souls in relationship to mother nature and the moral abyss of the polycrisis into which we must now stare" and not enough "ok but get a heat pump"
September 28, 2025 at 6:52 PM
my takeaway from climate week nyc is that "climate storytelling" is a little too much "we must reimagine our deepest souls in relationship to mother nature and the moral abyss of the polycrisis into which we must now stare" and not enough "ok but get a heat pump"
Reposted by Kevin Schwarzwald
New paper out. In which we helped the folks at the Allen Institute for AI (AI2) show that their climate emulator does a good (though not perfect) job at reproducing E3SMs' response to different SST boundary conditions.
1/
agupubs.onlinelibrary.wiley.com/doi/full/10....
1/
agupubs.onlinelibrary.wiley.com/doi/full/10....
Applying the ACE2 Emulator to SST Green's Functions for the E3SMv3 Global Atmosphere Model
The Ai2 Climate Emulator broadly captures the top-of-atmosphere (TOA) radiative response to local sea surface temperature (SST) anomalies ACE and EAMv3's global TOA radiation sensitivity to all S...
agupubs.onlinelibrary.wiley.com
September 25, 2025 at 5:30 PM
New paper out. In which we helped the folks at the Allen Institute for AI (AI2) show that their climate emulator does a good (though not perfect) job at reproducing E3SMs' response to different SST boundary conditions.
1/
agupubs.onlinelibrary.wiley.com/doi/full/10....
1/
agupubs.onlinelibrary.wiley.com/doi/full/10....