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Paul Zander

@zanderland.bsky.social

740 followers 730 following 35 posts

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

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Paul Zander @zanderland.bsky.social · Nov 15

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

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

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Paul Zander @zanderland.bsky.social · Aug 7

Thats a lot of long term OC storage I bet

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Zeke Hausfather @hausfath.bsky.social · May 27

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

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Paul Zander @zanderland.bsky.social · May 2

I think there's a decent argument that a lot more people in NY and CA would've voted for Kamala if they felt like their vote mattered at all

Reposted by Paul Zander

Glen Peters @glenpeters.bsky.social · Apr 16

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/

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CEREGE @cerege.bsky.social · Mar 24

🚨 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...

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Paul Zander @zanderland.bsky.social · Mar 10

Obviously complaints about free speech from the right meant their speech. They never cared about the principle.

Seth Abramson @sethabramson.bsky.social · Mar 10

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/...

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Seth Abramson @sethabramson.bsky.social · Mar 10

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Maddy Jalbert @maddyjalbert.bsky.social · Jan 31

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.

Katie Mack @astrokatie.com · Jan 30

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.

Ben Stone @benstemon.bsky.social · Jan 30

It’s official: all funding requests made on Tuesday by postdocs for their salaries have been unilaterally rejected by NSF.

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Prof Friederike Otto @frediotto.bsky.social · Jan 29

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...

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Jessica Tierney @leafwax.bsky.social · Jan 27

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 ✨...

Earth's temperature history for the past 500 million years

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Daniel Swain @weatherwest.bsky.social · Jan 10

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

Schematic from Swain 2021 depicting how even a modest (1-month) delay in the Southern California rainy season can greatly amplify wildfire risk by increasing the temporal/seasonal overlap between critically dry vegetation and the occurrence of strong, dry offshore (downsloping) winds.

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Paul Zander @zanderland.bsky.social · Jan 11

Interesting that California is not a hot spot for increased hydro climate whiplash! Is CA already naturally above average for this metric?

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Daniel Swain @weatherwest.bsky.social · Jan 11

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

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Paul Zander @zanderland.bsky.social · Dec 15

Today I learned mine tailings can be laminated. But are they varves?

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Dr. Nina Davtian (she/her/hers) @ninadavtian.bsky.social · Oct 3

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

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Paul Zander @zanderland.bsky.social · May 1

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...

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Paul Zander @zanderland.bsky.social · Dec 5

Might be of interest to @loopdlupien.bsky.social @triptychphrases.bsky.social @sfeakins.bsky.social @climategordon.bsky.social

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Paul Zander @zanderland.bsky.social · Dec 5

Plus... we show that the properties of alkane standards for GC-IRMS can make a big difference for measuring dD.

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Paul Zander @zanderland.bsky.social · Dec 5

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

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

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Dr. Or M. Bialik |📚|🔬|🌊|⚒️ @obialik.bsky.social · Nov 16

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.

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Paul Zander @zanderland.bsky.social · Nov 15

We also found that the rate of warming during the past 90 years is likely unprecedented in the past 10,800 years. 🌡️⬆️

Thanks if you read this far. Happy to discuss if you have questions.

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Paul Zander @zanderland.bsky.social · Nov 15

This result agrees with modern data showing increased summer temperature variability in central Europe as the climate warms.

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Paul Zander @zanderland.bsky.social · Nov 15

But our record is unique for its high-resolution, which allows us to investigate decadal-scale variability. We find higher decadal-scale temperature variability during the early Holocene, roughly during the warmest period.

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Paul Zander @zanderland.bsky.social · Nov 15

Our temperature reconstruction agrees well with other paleoclimate records form the Northern Hemisphere.

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Paul Zander @zanderland.bsky.social · Nov 15

We found a significant correlation between Ca/Ti and spring + summer temp spanning over 200 years even after accounting for age uncertainty.

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