Jessica Tierney
@leafwax.bsky.social
Climate scientist living in the Sonoran Desert. Analyzer of leaf waxes to learn about past climate change. Professor at the University of Arizona. I also like birds, nature, pets🦉🌿🐕 | Opinions are mine, not those of my employer
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...
The special issue @quantamagazine.bsky.social on Climate Science just dropped and I know what my weekend readings is gonna be 👍🏻 www.quantamagazine.org/how-we-came-...
How We Came To Know Earth | Quanta Magazine
Climate science is the most significant scientific collaboration in history. This series from Quanta Magazine guides you through basic climate science — from quantum effects to ancient hothouses, from...
www.quantamagazine.org
September 17, 2025 at 1:07 AM
The special issue @quantamagazine.bsky.social on Climate Science just dropped and I know what my weekend readings is gonna be 👍🏻 www.quantamagazine.org/how-we-came-...
I do love Reddit for so many reasons. Thanks for accepting me bros!
September 8, 2025 at 3:16 AM
I do love Reddit for so many reasons. Thanks for accepting me bros!
I stand by my offer to appear on Joe Rogan and set the record straight about our half-billion-year temperature reconstruction www.theguardian.com/environment/...
Joe Rogan claims study shows Earth cooling – but report’s authors say he’s wrong
Scientists say ‘old-school denier nonsense’ isn’t helpful as podcaster repeatedly airs false claim on his show
www.theguardian.com
September 4, 2025 at 5:10 PM
I stand by my offer to appear on Joe Rogan and set the record straight about our half-billion-year temperature reconstruction www.theguardian.com/environment/...
A proposed Amazon data center in Tucson (“Project Blue”, FFS) that would have sapped power and water from the city has been REJECTED thanks to amazing community solidarity. The people of the desert have spoken and won ✊🌵🏜️
The Tucson city council unanimously rejected the Project Blue data center today.
That comes after weeks of dogged organizing plus our little team @azluminaria.org going hard on helping Tucson understand who was behind this project and its impact on our community
azluminaria.org/2025/08/06/t...
That comes after weeks of dogged organizing plus our little team @azluminaria.org going hard on helping Tucson understand who was behind this project and its impact on our community
azluminaria.org/2025/08/06/t...
Tucson City Council rejects Project Blue data center amid intense community pressure - AZ Luminaria
The Tucson city council voted unanimously Wednesday against bringing the massive and water-devouring Project Blue data center — tied to tech giant Amazon — into city limits. After weeks of escalating ...
azluminaria.org
August 7, 2025 at 2:26 AM
A proposed Amazon data center in Tucson (“Project Blue”, FFS) that would have sapped power and water from the city has been REJECTED thanks to amazing community solidarity. The people of the desert have spoken and won ✊🌵🏜️
Reposted by Jessica Tierney
why does coal use she/her pronouns
struggling with an analogy here but imagine NASA posting a meme about how excited they are to return aviation to the pre-jet age
![u.s. department of energy post on x praising coal:
"She's an icon
She's a legend
And she is the moment
[sparkly picture of coal]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:fwks525g7gw5wc7ul2wg4wj5/bafkreiemlnocjpmihyy2yegdsvokmpk3vdrwkvaqbgpopxqbb4bgiebtqm@jpeg)
August 1, 2025 at 12:44 AM
why does coal use she/her pronouns
This @wired.com article is extremely timely for those of us in Tucson, Arizona, as we face the possibility of Amazon Web Services building a huge data center at our outskirts. Energy and water use for AI data centers are non-trivial. Read my thread below if you want to hear about our local story ⬇️
AI this, AI that, what about how much energy AI actually uses?
“It blows my mind that you can buy a car and know how many miles per gallon it consumes, yet we use all these AI tools every day and we have absolutely no efficiency metrics, emissions factors, nothing." From the experts:
“It blows my mind that you can buy a car and know how many miles per gallon it consumes, yet we use all these AI tools every day and we have absolutely no efficiency metrics, emissions factors, nothing." From the experts:
How Much Energy Does AI Use? The People Who Know Aren’t Saying
A growing body of research attempts to put a number on energy use and AI—even as the companies behind the most popular models keep their carbon emissions a secret.
www.wired.com
July 24, 2025 at 6:20 PM
This @wired.com article is extremely timely for those of us in Tucson, Arizona, as we face the possibility of Amazon Web Services building a huge data center at our outskirts. Energy and water use for AI data centers are non-trivial. Read my thread below if you want to hear about our local story ⬇️
Update on the NOAA Fellows situation: as of late last week the furlough has been lifted (phew!). However, there are no new Fellows this year, and we still don't know the future of this program.
As of today, all current NOAA Climate and Global Change postdoctoral fellows have been furloughed due to the Dept of Commerce not releasing the funding for the program. In addition no new Fellows were awarded this year. cpaess.ucar.edu/cgc
NOAA Climate & Global Change (C&GC) Postdoctoral Program | Cooperative Programs for the Advancement of Earth System ScienceNOAA Climate & Global Change (C&GC) Postdoctoral Program | Cooperative Progra...
cpaess.ucar.edu
July 24, 2025 at 2:42 PM
Update on the NOAA Fellows situation: as of late last week the furlough has been lifted (phew!). However, there are no new Fellows this year, and we still don't know the future of this program.
✨Paper #2 has just been published @weareagc.bsky.social ✨ And it is about hopanoids!! Thank you @climategordon.bsky.social for trusting a brand new journal with your research. AGC is 💎 open access: free to publish and free to read 🙌 Geochemists, come publish with us! journals.uu.se/AGC/article/...
Hopanoid distributions differ in mineral soils and peat: a re-evaluation of hopane-based pH proxies | Advances in Geochemistry and Cosmochemistry
Advances in Geochemistry and Cosmochemistry, ISSN 2977-1994 | CC BY 4.0
journals.uu.se
July 17, 2025 at 4:29 PM
✨Paper #2 has just been published @weareagc.bsky.social ✨ And it is about hopanoids!! Thank you @climategordon.bsky.social for trusting a brand new journal with your research. AGC is 💎 open access: free to publish and free to read 🙌 Geochemists, come publish with us! journals.uu.se/AGC/article/...
Reposted by Jessica Tierney
The Trump administration's proposed budget would slash NOAA's climate research funds.
It still has to pass Congress, but it's already affecting scientists. A program supporting promising new climate scientists furloughed its current cohort and canceled 2025 awards.
www.nytimes.com/2025/07/09/c...
It still has to pass Congress, but it's already affecting scientists. A program supporting promising new climate scientists furloughed its current cohort and canceled 2025 awards.
www.nytimes.com/2025/07/09/c...
Recipients of a U.S. Climate Science Fellowship Are Put on Unpaid Leave
www.nytimes.com
July 10, 2025 at 3:08 PM
The Trump administration's proposed budget would slash NOAA's climate research funds.
It still has to pass Congress, but it's already affecting scientists. A program supporting promising new climate scientists furloughed its current cohort and canceled 2025 awards.
www.nytimes.com/2025/07/09/c...
It still has to pass Congress, but it's already affecting scientists. A program supporting promising new climate scientists furloughed its current cohort and canceled 2025 awards.
www.nytimes.com/2025/07/09/c...
Reporting on the NOAA Fellow furlough, from the @nytimes.com www.nytimes.com/2025/07/09/c...
Recipients of a U.S. Climate Science Fellowship Are Put on Unpaid Leave
www.nytimes.com
July 9, 2025 at 5:54 PM
Reporting on the NOAA Fellow furlough, from the @nytimes.com www.nytimes.com/2025/07/09/c...
As of today, all current NOAA Climate and Global Change postdoctoral fellows have been furloughed due to the Dept of Commerce not releasing the funding for the program. In addition no new Fellows were awarded this year. cpaess.ucar.edu/cgc
NOAA Climate & Global Change (C&GC) Postdoctoral Program | Cooperative Programs for the Advancement of Earth System ScienceNOAA Climate & Global Change (C&GC) Postdoctoral Program | Cooperative Progra...
cpaess.ucar.edu
July 7, 2025 at 3:16 PM
As of today, all current NOAA Climate and Global Change postdoctoral fellows have been furloughed due to the Dept of Commerce not releasing the funding for the program. In addition no new Fellows were awarded this year. cpaess.ucar.edu/cgc
So cool!! The journey started in 2018, I think the photo on the left was 2021 (?) and now the Judd curve is on the wall in the Smithsonian 👍🏻
How it started, How it’s going (Judd et al. 2024 now in the Smithsonian, @leafwax.bsky.social !) www.science.org/doi/10.1126/...
June 5, 2025 at 2:58 AM
So cool!! The journey started in 2018, I think the photo on the left was 2021 (?) and now the Judd curve is on the wall in the Smithsonian 👍🏻
The fact that "climate is always changing" should not bring us comfort! @hausfath.bsky.social and I break down common climate denier arguments on @pbs.org Weathered www.youtube.com/watch?v=iP2l... Feat. temp and CO2 reconstructions from our lab and @mudwaterclimate.bsky.social
Did Climate Skeptics Get THIS Right?!
YouTube video by PBS Terra
www.youtube.com
May 27, 2025 at 3:55 PM
The fact that "climate is always changing" should not bring us comfort! @hausfath.bsky.social and I break down common climate denier arguments on @pbs.org Weathered www.youtube.com/watch?v=iP2l... Feat. temp and CO2 reconstructions from our lab and @mudwaterclimate.bsky.social
Reposted by Jessica Tierney
Yesterday, the NIH R35 “Outstanding Investigator” grant to fund scientists in my lab studying antibiotic resistance was terminated for reasons not related to the content of the science, or any actions taken by me or members of my lab
May 13, 2025 at 11:37 PM
Yesterday, the NIH R35 “Outstanding Investigator” grant to fund scientists in my lab studying antibiotic resistance was terminated for reasons not related to the content of the science, or any actions taken by me or members of my lab
Useful post here on things you can do to communicate the importance of science to your representatives.
Upset about federal funding cuts in the US? Want some ideas of what to do? I wrote a long-ish blog post about it here
ecoevoevoeco.blogspot.com
summarizing things I learned meeting with Senate & House aides this week with the @aibsbiology.bsky.social Congressional Visits Day event.
ecoevoevoeco.blogspot.com
summarizing things I learned meeting with Senate & House aides this week with the @aibsbiology.bsky.social Congressional Visits Day event.
Eco-Evo Evo-Eco
Academic musing by Hendry, Bolnick, Gotanda, and awesome guests.
Opinions and statements expressed on this blog are the views of the author(s) and do not necessarily represent endorsement by the blog...
ecoevoevoeco.blogspot.com
May 2, 2025 at 7:27 PM
Useful post here on things you can do to communicate the importance of science to your representatives.
I would like to unsubscribe from this mailing list
May 2, 2025 at 7:15 PM
I would like to unsubscribe from this mailing list
Hard to post about ‘normal’ things, but - we had an amazing field trip out to CA with ugrads to learn and practice oceanography this Spring ❤️🌊 when things are dark I get a boost from teaching great students!
April 10, 2025 at 3:13 PM
Hard to post about ‘normal’ things, but - we had an amazing field trip out to CA with ugrads to learn and practice oceanography this Spring ❤️🌊 when things are dark I get a boost from teaching great students!
Reposted by Jessica Tierney
We've quickly moved from being the spokesperson for a protest movement to being arrested at a protest to publishing a critical op-ed as the criteria for summary deportation.
A slippery slope for free speech indeed. www.nytimes.com/2025...
A slippery slope for free speech indeed. www.nytimes.com/2025...
Rumeysa Ozturk, a Tufts Student, Is Detained by ICE
The university was told that the student’s visa had been terminated, its president said in a late-night email to students and faculty members.
www.nytimes.com
March 27, 2025 at 2:17 AM
We've quickly moved from being the spokesperson for a protest movement to being arrested at a protest to publishing a critical op-ed as the criteria for summary deportation.
A slippery slope for free speech indeed. www.nytimes.com/2025...
A slippery slope for free speech indeed. www.nytimes.com/2025...
Grijalva was my representative and a legend- defender of the environment, indigenous groups in southern AZ and sensible border policy. Going to be missed 💔 RIP
Spitfire Raul Grijalva, a congressman from Arizona for more than 40 years, advocate for public lands and fighter against climate change, has died at age 77 in a major loss for the West. 🧵👇
March 14, 2025 at 2:16 AM
Grijalva was my representative and a legend- defender of the environment, indigenous groups in southern AZ and sensible border policy. Going to be missed 💔 RIP
I identify with this iceberg.
(Also a beautiful video)
(Also a beautiful video)
March 13, 2025 at 1:52 AM
I identify with this iceberg.
(Also a beautiful video)
(Also a beautiful video)
Reposted by Jessica Tierney
"It does not matter if you approve of Khalil’s views. ... If the state can deprive an individual of his freedom just because of his politics, which is what appears to have happened here, then no one is safe." www.theatlantic.com/ideas/archiv...
Mahmoud Khalil’s Detention Is a Trial Run
The pro-Palestine student was arrested without due process for exercising his right to free speech. He will not be the last.
www.theatlantic.com
March 11, 2025 at 8:25 PM
"It does not matter if you approve of Khalil’s views. ... If the state can deprive an individual of his freedom just because of his politics, which is what appears to have happened here, then no one is safe." www.theatlantic.com/ideas/archiv...
Saturday is for enjoying Springtime in the desert. Even in years with little winter rain (like this one-less than 1 inch so far 😳) ocotillos will always bloom providing hummingbirds with nectar. A strong and spiky and beautiful plant 💪 #sonorandesert
March 8, 2025 at 11:35 PM
Saturday is for enjoying Springtime in the desert. Even in years with little winter rain (like this one-less than 1 inch so far 😳) ocotillos will always bloom providing hummingbirds with nectar. A strong and spiky and beautiful plant 💪 #sonorandesert
Reposted by Jessica Tierney
My term as Editor-in-Chief of Paleoceanography and Paleoclimatology comes to an end soon. We're looking for a new EIC. Consider applying www.agu.org/Publications...
www.agu.org
February 27, 2025 at 6:54 PM
My term as Editor-in-Chief of Paleoceanography and Paleoclimatology comes to an end soon. We're looking for a new EIC. Consider applying www.agu.org/Publications...
Reposted by Jessica Tierney
'Here we show that the AMOC is resilient to extreme greenhouse gas and North Atlantic freshwater forcings across 34 climate models.' www.nature.com/articles/s41...
Continued Atlantic overturning circulation even under climate extremes - Nature
Climate models suggest that the Atlantic Meridional Overturning Circulation is unlikely to collapse this century, owing to stabilization from wind-driven upwelling in the Southern Ocean.
www.nature.com
February 26, 2025 at 4:30 PM
'Here we show that the AMOC is resilient to extreme greenhouse gas and North Atlantic freshwater forcings across 34 climate models.' www.nature.com/articles/s41...