Paul Zander
@zanderland.bsky.social
Husband and cat dad. Born at 353 ppm 🌎 Earth lover. Researcher interested in paleoclimate, biogeochemistry, carbon cycle, lakes, soils. Skier, climber, hiker. Fan of music and basketball.
https://zanderland.wixsite.com/drpaulzander
https://zanderland.wixsite.com/drpaulzander
Pinned
Paul Zander
@zanderland.bsky.social
· Nov 15
Subdecadal Holocene Warm‐Season Temperature Variability in Central Europe Recorded by Biochemical Varves
10,800-year-long, 3-year-resolution, warm-season temperature reconstruction from biochemical varves from Lake Żabińskie, Poland
Peak summer temperatures occurred during the early Holocene with de...
agupubs.onlinelibrary.wiley.com
New publication out today in GRL! 🧪Varves and high-res Holocene Paleoclimate!
"Subdecadal Holocene Warm-Season Temperature Variability in Central Europe Recorded by Biochemical Varves"
agupubs.onlinelibrary.wiley.com/doi/full/10....
🧵 below for the nerdy details
"Subdecadal Holocene Warm-Season Temperature Variability in Central Europe Recorded by Biochemical Varves"
agupubs.onlinelibrary.wiley.com/doi/full/10....
🧵 below for the nerdy details
New paper in QSR on the well-studied varved sediments of Soppensee with colleagues from @unibe.ch. Stan Schouten led this nice study looking at the effects of climate and nutrient cycles on lake eutrophication during a warming event in the past.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Climate-eutrophication-anoxia interactions in Late Glacial Soppensee, Switzerland: Forcings, non-linear responses and recovery
Combined effects of climate warming and anthropogenic nutrient loadings lead to lake eutrophication and anoxia globally. Because of chemical feedbacks…
www.sciencedirect.com
January 15, 2026 at 5:46 PM
New paper in QSR on the well-studied varved sediments of Soppensee with colleagues from @unibe.ch. Stan Schouten led this nice study looking at the effects of climate and nutrient cycles on lake eutrophication during a warming event in the past.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
🌡️🥵
Well, it's now official (per NOAA): Dec (and Nov-Dec) 2025 were the warmest such periods on record for Western U.S. (and also for most individual Western states). It has been an extraordinarily sustained period of winter warmth, and this eerily balmy winter continues into Jan.
January 14, 2026 at 5:57 AM
🌡️🥵
We have a new preprint out here: www.researchsquare.com/article/rs-8...
We found a somewhat unexpected result - leaf wax hydrogen isotopes become consistently depleted in response to the rapid warming events of the last glacial period (DO events).
We found a somewhat unexpected result - leaf wax hydrogen isotopes become consistently depleted in response to the rapid warming events of the last glacial period (DO events).
Leaf wax isotopes reveal enhanced humidity and earlier growing season during Dansgaard-Oeschger warming events in Europe
The study of past abrupt warming events provides knowledge of climate dynamics that are critical for future projections. During the last glacial period, Dansgaard-Oeschger (D/O) cycles caused rapid te...
www.researchsquare.com
January 5, 2026 at 2:48 AM
We have a new preprint out here: www.researchsquare.com/article/rs-8...
We found a somewhat unexpected result - leaf wax hydrogen isotopes become consistently depleted in response to the rapid warming events of the last glacial period (DO events).
We found a somewhat unexpected result - leaf wax hydrogen isotopes become consistently depleted in response to the rapid warming events of the last glacial period (DO events).
Reposted by Paul Zander
Please join the American Geophysical Union in advocating to safeguard NCAR. agu.quorum.us/campaign/151...
Save NCAR from being dismantled today!
The Trump Administration has vowed to dissolve the center that provides critical extreme weather and climate data for our nation.
agu.quorum.us
December 18, 2025 at 6:21 PM
Please join the American Geophysical Union in advocating to safeguard NCAR. agu.quorum.us/campaign/151...
Reposted by Paul Zander
🚨 Happening NOW at #AGU25!
Town Hall on Protecting NSF NCAR - UCAR President Antonio Busalacchi discusses what the nation stands to lose if NSF NCAR is dismantled and steps being taken to support this critical community resource.
📍 La Nouvelle C (NOLA CC)
⏰ 1:00-1:30pm
#AGUEPSP #EPSPatAGU25
Town Hall on Protecting NSF NCAR - UCAR President Antonio Busalacchi discusses what the nation stands to lose if NSF NCAR is dismantled and steps being taken to support this critical community resource.
📍 La Nouvelle C (NOLA CC)
⏰ 1:00-1:30pm
#AGUEPSP #EPSPatAGU25
December 18, 2025 at 4:07 PM
🚨 Happening NOW at #AGU25!
Town Hall on Protecting NSF NCAR - UCAR President Antonio Busalacchi discusses what the nation stands to lose if NSF NCAR is dismantled and steps being taken to support this critical community resource.
📍 La Nouvelle C (NOLA CC)
⏰ 1:00-1:30pm
#AGUEPSP #EPSPatAGU25
Town Hall on Protecting NSF NCAR - UCAR President Antonio Busalacchi discusses what the nation stands to lose if NSF NCAR is dismantled and steps being taken to support this critical community resource.
📍 La Nouvelle C (NOLA CC)
⏰ 1:00-1:30pm
#AGUEPSP #EPSPatAGU25
Reposted by Paul Zander
Unraveling the mysteries of ancient solar storms and earthquakes using tree rings research.arizona.edu/news/unravel...
Unraveling the mysteries of ancient solar storms and earthquakes
Tree-ring and planetary scientists are preparing for the big natural events thanks to a Big Idea Challenge grant and a new laboratory.
research.arizona.edu
November 25, 2025 at 2:37 PM
Unraveling the mysteries of ancient solar storms and earthquakes using tree rings research.arizona.edu/news/unravel...
Reposted by Paul Zander
We're hiring! I'm recruiting a Postdoctoral Research Associate in climate & paleoclimate modeling of the tropical Americas. Come obsess over the tropical rain belt with me! :) Please share w/folks who may be interested. Ad here: wustl.wd1.myworkdayjobs.com/en-US/Extern...
Postdoctoral Research Associate - Earth, Environmental, and Planetary Sciences
Position Summary The Climate and Paleoclimate Lab in the Department of Earth, Environmental, and Planetary Sciences at WashU in St. Louis seeks a Postdoctoral Research Associate in tropical climate/pa...
wustl.wd1.myworkdayjobs.com
October 29, 2025 at 5:25 PM
We're hiring! I'm recruiting a Postdoctoral Research Associate in climate & paleoclimate modeling of the tropical Americas. Come obsess over the tropical rain belt with me! :) Please share w/folks who may be interested. Ad here: wustl.wd1.myworkdayjobs.com/en-US/Extern...
Reposted by Paul Zander
What a pleasure and a privilege to contribute to @pages-ipo.bsky.social magazine with @zanderland.bsky.social And, among the others, there is some Lake Żabińskie on the cover!
🥳 It's out!
The latest PAGES Mag on "New Analytical Techniques in #Paleoscience" is online!
🌍 This issue highlights how novel imaging methods and machine-learning approaches are revolutionizing paleoscientific research and expanding our ability to decode past Earth’s history.
🔗 shorturl.at/LOJj5
The latest PAGES Mag on "New Analytical Techniques in #Paleoscience" is online!
🌍 This issue highlights how novel imaging methods and machine-learning approaches are revolutionizing paleoscientific research and expanding our ability to decode past Earth’s history.
🔗 shorturl.at/LOJj5
October 29, 2025 at 3:34 PM
What a pleasure and a privilege to contribute to @pages-ipo.bsky.social magazine with @zanderland.bsky.social And, among the others, there is some Lake Żabińskie on the cover!
Reposted by Paul Zander
I am currently seeking a Lab Manager for our Organic Geochemistry Lab at the University of Arizona! Full time position with benefits. If you have a chemistry/biology/geology degree and like fixing things and working with students, this position could be for you! arizona.csod.com/ux/ats/caree...
Laboratory Coordinator I - Geosciences
Maintenance and repair of the Organic Geochemistry Laboratory equipment, including but not limited to gas chromatographs, liquid chromatographs & ...
arizona.csod.com
October 15, 2025 at 5:27 PM
I am currently seeking a Lab Manager for our Organic Geochemistry Lab at the University of Arizona! Full time position with benefits. If you have a chemistry/biology/geology degree and like fixing things and working with students, this position could be for you! arizona.csod.com/ux/ats/caree...
Reposted by Paul Zander
We often hear folks skeptical of climate change claim that "the climate is always changing" or "temperatures rise before CO2" or "its the sun". In a new episode of PBS's Weathered, @leafwax.bsky.social and I try and address these questions: www.youtube.com/watc...
Did Climate Skeptics Get THIS Right?!
Is global warming just part of Earth’s natural cycle? In this episode of Weathered, we break down why that’s not the full story. From ice ages and Milankovitch cycles to the role of CO2 and fossil fuels, today’s climate change is unlike anything in Earth’s deep past. Learn why the speed of warming m
www.youtube.com
May 27, 2025 at 7:18 PM
We often hear folks skeptical of climate change claim that "the climate is always changing" or "temperatures rise before CO2" or "its the sun". In a new episode of PBS's Weathered, @leafwax.bsky.social and I try and address these questions: www.youtube.com/watc...
Reposted by Paul Zander
Just your regular reminder of where global CO2 emissions are tracking compared to scenarios that keep warming to below 1.5C in 2100, with "no or low overshoot" (maximum temperature around 1.6C).
journals.sagepub.com/doi/full/10....
C1/
journals.sagepub.com/doi/full/10....
C1/
April 16, 2025 at 11:29 AM
Just your regular reminder of where global CO2 emissions are tracking compared to scenarios that keep warming to below 1.5C in 2100, with "no or low overshoot" (maximum temperature around 1.6C).
journals.sagepub.com/doi/full/10....
C1/
journals.sagepub.com/doi/full/10....
C1/
Reposted by Paul Zander
🚨 Junior Professorship Job Offer! 🚨
Join @cerege.bsky.social as a Junior Professor (CPJ) 2025 to study Pleistocene & Holocene paleoenvironments and human settlements. A unique opportunity to explore past landscapes and their impact on societies!
Job ad here : nuage.osupytheas.fr/s/GoSt7kcKMp...
Join @cerege.bsky.social as a Junior Professor (CPJ) 2025 to study Pleistocene & Holocene paleoenvironments and human settlements. A unique opportunity to explore past landscapes and their impact on societies!
Job ad here : nuage.osupytheas.fr/s/GoSt7kcKMp...
March 24, 2025 at 1:53 PM
🚨 Junior Professorship Job Offer! 🚨
Join @cerege.bsky.social as a Junior Professor (CPJ) 2025 to study Pleistocene & Holocene paleoenvironments and human settlements. A unique opportunity to explore past landscapes and their impact on societies!
Job ad here : nuage.osupytheas.fr/s/GoSt7kcKMp...
Join @cerege.bsky.social as a Junior Professor (CPJ) 2025 to study Pleistocene & Holocene paleoenvironments and human settlements. A unique opportunity to explore past landscapes and their impact on societies!
Job ad here : nuage.osupytheas.fr/s/GoSt7kcKMp...
Obviously complaints about free speech from the right meant their speech. They never cared about the principle.
Fascism is here.
The list of words Trump is banning from government is the most stunning document of our time. Click the image below to see how many words Trump and Musk have canceled as part of their new Reich.
🔗: www.nytimes.com/interactive/...
The list of words Trump is banning from government is the most stunning document of our time. Click the image below to see how many words Trump and Musk have canceled as part of their new Reich.
🔗: www.nytimes.com/interactive/...
March 10, 2025 at 2:53 PM
Obviously complaints about free speech from the right meant their speech. They never cared about the principle.
Reposted by Paul Zander
Fascism is here.
The list of words Trump is banning from government is the most stunning document of our time. Click the image below to see how many words Trump and Musk have canceled as part of their new Reich.
🔗: www.nytimes.com/interactive/...
The list of words Trump is banning from government is the most stunning document of our time. Click the image below to see how many words Trump and Musk have canceled as part of their new Reich.
🔗: www.nytimes.com/interactive/...
March 10, 2025 at 12:22 AM
Fascism is here.
The list of words Trump is banning from government is the most stunning document of our time. Click the image below to see how many words Trump and Musk have canceled as part of their new Reich.
🔗: www.nytimes.com/interactive/...
The list of words Trump is banning from government is the most stunning document of our time. Click the image below to see how many words Trump and Musk have canceled as part of their new Reich.
🔗: www.nytimes.com/interactive/...
Reposted by Paul Zander
I am one of these NSF postdocs. NSF has frozen everyone’s access to their salaries and research stipends (that were already awarded) with no information about when they might be expected to be unfrozen. It still appears like we are expected to continue doing our work though.
Apparently all the PhD researchers holding prestigious NSF-funded research fellowships are having their salaries withheld until some unspecified time when the leadership figures out how to eliminate any grant funding that doesn’t align with the president’s political ideology.
It’s official: all funding requests made on Tuesday by postdocs for their salaries have been unilaterally rejected by NSF.
January 31, 2025 at 12:43 AM
I am one of these NSF postdocs. NSF has frozen everyone’s access to their salaries and research stipends (that were already awarded) with no information about when they might be expected to be unfrozen. It still appears like we are expected to continue doing our work though.
Reposted by Paul Zander
LA is in a high fire risk region & fire weather conditions are complex. So we @wwattribution.bsky.social looked at many lines of evidence. All show: our burning of fossil fuels increased the likelihood of such extreme fire weather conditions www.worldweatherattribution.org/climate-chan...
January 29, 2025 at 8:04 AM
LA is in a high fire risk region & fire weather conditions are complex. So we @wwattribution.bsky.social looked at many lines of evidence. All show: our burning of fossil fuels increased the likelihood of such extreme fire weather conditions www.worldweatherattribution.org/climate-chan...
Reposted by Paul Zander
For my first scientific post here, I want to talk about the Phanerozoic temperature record we published last Fall, which unfortunately has been making rounds in the climate denier circuit 👀 First though hopefully you can appreciate the beauty of this reconstruction ✨...
January 27, 2025 at 3:50 PM
For my first scientific post here, I want to talk about the Phanerozoic temperature record we published last Fall, which unfortunately has been making rounds in the climate denier circuit 👀 First though hopefully you can appreciate the beauty of this reconstruction ✨...
Reposted by Paul Zander
Here's a schematic I published in this 2021 piece to illustrate how even a modest delay in onset of rainy season in Southern California can dramatically amplify wildfire risk by lengthening seasonal overlap between dry vegetation and strong offshore winds during Oct-Jan. #CAfire
January 10, 2025 at 1:45 AM
Here's a schematic I published in this 2021 piece to illustrate how even a modest delay in onset of rainy season in Southern California can dramatically amplify wildfire risk by lengthening seasonal overlap between dry vegetation and strong offshore winds during Oct-Jan. #CAfire
Reposted by Paul Zander
Our paper on "Hydroclimate volatility on a Warming Earth" is out in Nature Reviews Earth & Environment. We assess existing scientific literature & conduct new analysis--concluding that "#HydroclimateWhiplash" is increasing due to #ClimateChange. [Thread] www.nature.com/artic...
Hydroclimate volatility on a warming Earth
Nature Reviews Earth & Environment - Rapid transitions between extreme wet and extreme dry conditions — ‘hydroclimate whiplash’ — have marked environmental and societal...
www.nature.com
January 11, 2025 at 12:18 AM
Our paper on "Hydroclimate volatility on a Warming Earth" is out in Nature Reviews Earth & Environment. We assess existing scientific literature & conduct new analysis--concluding that "#HydroclimateWhiplash" is increasing due to #ClimateChange. [Thread] www.nature.com/artic...
Reposted by Paul Zander
Remember that we have a Starter Pack for researchers who work(ed) with molecules, such as leaf wax, algal, archaeal, and bacterial lipids and pyrogenic compounds.
Featuring but not restricted to #GDGT lovers, #PaleoSky people, geologists ⚒️, and/or (pale)oceanographers 🌊
go.bsky.app/RC38uDF
Featuring but not restricted to #GDGT lovers, #PaleoSky people, geologists ⚒️, and/or (pale)oceanographers 🌊
go.bsky.app/RC38uDF
October 3, 2024 at 3:42 PM
Remember that we have a Starter Pack for researchers who work(ed) with molecules, such as leaf wax, algal, archaeal, and bacterial lipids and pyrogenic compounds.
Featuring but not restricted to #GDGT lovers, #PaleoSky people, geologists ⚒️, and/or (pale)oceanographers 🌊
go.bsky.app/RC38uDF
Featuring but not restricted to #GDGT lovers, #PaleoSky people, geologists ⚒️, and/or (pale)oceanographers 🌊
go.bsky.app/RC38uDF
Reposted by Paul Zander
In case you missed it, our insightful panel discussion on careers outside academia for paleo scientists is on youtube:
www.youtube.com/watch?v=hRjG...
www.youtube.com/watch?v=hRjG...
May 1, 2024 at 11:07 AM
In case you missed it, our insightful panel discussion on careers outside academia for paleo scientists is on youtube:
www.youtube.com/watch?v=hRjG...
www.youtube.com/watch?v=hRjG...
Ever wanted to get just a little bit more out of your lipid extracts when measuring compound specific isotopes?
If yes, here's a new paper that might be of interested to you:
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
with @amglab.bsky.social
If yes, here's a new paper that might be of interested to you:
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
with @amglab.bsky.social
Large‐Volume Injection and Assessment of Reference Standards for n‐Alkane δD and δ13C Analysis via Gas Chromatography Isotope Ratio Mass Spectrometry
Rationale
Compound-specific stable isotope analysis of hydrogen (δD) and carbon (δ13C) in organic compounds is a valuable tool in biogeochemical research. A key limitation of this method is the rela.....
analyticalsciencejournals.onlinelibrary.wiley.com
December 5, 2024 at 3:43 AM
Ever wanted to get just a little bit more out of your lipid extracts when measuring compound specific isotopes?
If yes, here's a new paper that might be of interested to you:
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
with @amglab.bsky.social
If yes, here's a new paper that might be of interested to you:
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
with @amglab.bsky.social
Reposted by Paul Zander
By now, I made three Earth ⚒️ and Marine 🌊 Sciences 🧪 Starter Packs:
Paleoenvironmental researchers:
bsky.app/starter-pack...
Scientific Drilling ( #IODP / #ICDP ) researchers:
bsky.app/starter-pack...
Marine biogeochemistry researchers:
bsky.app/starter-pack...
One of them may be interesting.
Paleoenvironmental researchers:
bsky.app/starter-pack...
Scientific Drilling ( #IODP / #ICDP ) researchers:
bsky.app/starter-pack...
Marine biogeochemistry researchers:
bsky.app/starter-pack...
One of them may be interesting.
November 16, 2024 at 9:24 AM
By now, I made three Earth ⚒️ and Marine 🌊 Sciences 🧪 Starter Packs:
Paleoenvironmental researchers:
bsky.app/starter-pack...
Scientific Drilling ( #IODP / #ICDP ) researchers:
bsky.app/starter-pack...
Marine biogeochemistry researchers:
bsky.app/starter-pack...
One of them may be interesting.
Paleoenvironmental researchers:
bsky.app/starter-pack...
Scientific Drilling ( #IODP / #ICDP ) researchers:
bsky.app/starter-pack...
Marine biogeochemistry researchers:
bsky.app/starter-pack...
One of them may be interesting.
New publication out today in GRL! 🧪Varves and high-res Holocene Paleoclimate!
"Subdecadal Holocene Warm-Season Temperature Variability in Central Europe Recorded by Biochemical Varves"
agupubs.onlinelibrary.wiley.com/doi/full/10....
🧵 below for the nerdy details
"Subdecadal Holocene Warm-Season Temperature Variability in Central Europe Recorded by Biochemical Varves"
agupubs.onlinelibrary.wiley.com/doi/full/10....
🧵 below for the nerdy details
Subdecadal Holocene Warm‐Season Temperature Variability in Central Europe Recorded by Biochemical Varves
10,800-year-long, 3-year-resolution, warm-season temperature reconstruction from biochemical varves from Lake Żabińskie, Poland
Peak summer temperatures occurred during the early Holocene with de...
agupubs.onlinelibrary.wiley.com
November 15, 2024 at 5:45 AM
New publication out today in GRL! 🧪Varves and high-res Holocene Paleoclimate!
"Subdecadal Holocene Warm-Season Temperature Variability in Central Europe Recorded by Biochemical Varves"
agupubs.onlinelibrary.wiley.com/doi/full/10....
🧵 below for the nerdy details
"Subdecadal Holocene Warm-Season Temperature Variability in Central Europe Recorded by Biochemical Varves"
agupubs.onlinelibrary.wiley.com/doi/full/10....
🧵 below for the nerdy details
October 1, 2024 at 4:18 PM