Dr. Jennifer Pett-Ridge
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jeffinerca.bsky.social
Dr. Jennifer Pett-Ridge
@jeffinerca.bsky.social
4.4K followers 1.1K following 91 posts

Mom, mentor, microbial ecologist. Soil biogeochemistry, climate change, CDR, roots-microbes-minerals, stable isotope probing metagenomics, NanoSIMS. Lead of LLNL Carbon Initiative, Roads2Removal.org, Microbes Persist SFA, & Terraforming Soil Earthshot Ctr. .. more

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Jennifer Pett-Ridge is an American biologist who is a senior staff scientist at the Lawrence Livermore National Laboratory. She also serves as an adjunct professor at the University of California, Merced. Her research makes use of systems biology and geochemistry to uncover function in microbial communities. She was awarded a 2021 United States Department of Energy Ernest Orlando Lawrence Award. .. more

Environmental science 39%
Physics 21%
Posts Replies Media Videos

Reposted by Jennifer Pett‐Ridge

npr.org
NPR @npr.org · 3d
Dec. 21 is the shortest day of the year in the Northern Hemisphere. Susan Cooper, who wrote the solstice poem "The Shortest Day," collaborated with illustrator Carson Ellis on a new picture book.

From the NPR archives.
Happy winter solstice! At last, we've made it to 'The Shortest Day'
Dec. 21 is the shortest day of the year in the Northern Hemisphere. Susan Cooper, who wrote the solstice poem "The Shortest Day," collaborated with illustrator Carson Ellis on a new picture book.
n.pr

Reposted by Gavin L. Foster, Jennifer Pett‐Ridge

tiinaroose.bsky.social
Tiina Roose @tiinaroose.bsky.social · 5d
PhD project on tipping points and natural flood management. Deadline 08/01/2026. Collaboration between @engineering-soton.bsky.social and @ukceh.bsky.social
#phd #funding #flood #research
www.findaphd.com/phds/project...
Habitat dependence of tipping points in upland soils and implications for natural flood management at University of Southampton on FindAPhD.com
PhD Project - Habitat dependence of tipping points in upland soils and implications for natural flood management at University of Southampton, listed on FindAPhD.com
www.findaphd.com

Reposted by Jennifer Pett‐Ridge, Bartosz Bartkowski

globalecoguy.bsky.social
Dr. Jonathan Foley @globalecoguy.bsky.social · 5d
There are many claims that AI is a “planet killing” source of greenhouse gases.

But is it?

This paper might be the most detailed estimate of the emissions associated with AI.

It suggests that AI could emit as much as 30-80 *million* tons of CO2 per year.

www.cell.com/patterns/ful...
The carbon and water footprints of data centers and what this could mean for artificial intelligence
Company-wide metrics from the environmental disclosure of data center operators suggest that AI systems may have a carbon footprint equivalent to that of New York City in 2025, while their water footp...
www.cell.com

Reposted by Jennifer Pett‐Ridge, W. Andy Knight

bennet.senate.gov
Michael Bennet @bennet.senate.gov · 5d
President Trump thinks he can intimidate Colorado by shuttering NCAR.

It’s political retribution, Senator John Hickenlooper and I won’t stand for it. We are holding up the appropriations package to demand NCAR is fully funded.

Read our full statement here:

Reposted by Philippe Froguel, Jack Goldsmith, Hugh P. Possingham , and 7 more

Reposted by Katharine Hayhoe, Scott C. Doney, Ben Bond‐Lamberty , and 4 more

alexwitze.bsky.social
Alexandra Witze @alexwitze.bsky.social · 6d
#AGU25 folks, there is a rapid- response town hall TODAY on the #NCAR dismantling at 1 pm, La Nouvelle Orleans ballroom C (per an AGU media advisory)

Reposted by Francis Martin, Simon Roux, Jennifer Pett‐Ridge

natrevgenet.nature.com
Nature Reviews Genetics @natrevgenet.nature.com · 9d
Review: A genomic view of Earth’s biomes by Gitta Szabó, @emileyeloe-fadrosh.bsky.social, @jeffinerca.bsky.social & Tanja Woyke @jgi.doe.gov
go.nature.com/3VTLImU
A genomic view of Earth’s biomes - Nature Reviews Genetics
Genome-wide approaches have uncovered the vast microbial and viral diversity across ecosystems. This Review explores advances in metagenomics, single-cell sequencing and functional profiling to elucid...
go.nature.com

Reposted by Jennifer Pett‐Ridge

drbiogc.bsky.social
Emily Bernhardt @drbiogc.bsky.social · 9d
Join us TODAY for the #AGU25 #Reeburgh_Lecture by Markus Kleber and stay for the @agubiogeosciences.bsky.social section meeting afterwards. Session B14B in LaNouvelle AB at 4:15

Reposted by Jonathan A. Eisen, Jennifer Pett‐Ridge

findmeinthelab.bsky.social
Thomas P200 Burke @findmeinthelab.bsky.social · 11d
🚨New faculty job opportunity 🚨

Please share this ad for a faculty position in our department at UC Irvine, in the fields of microbiology and infectious disease. MD/PhDs and PhDs are desired and should apply!

recruit.ap.uci.edu/JPF09954
Pediatric Infectious Diseases/Microbiology - Professor Series (tenure track/tenure), Open Rank
University of California, Irvine is hiring. Apply now!
recruit.ap.uci.edu

Reposted by Rebecca Solnit, Jennifer Pett‐Ridge, Robert W. Wallace

billmckibben.bsky.social
Bill McKibben @billmckibben.bsky.social · 13d
Just noting that no one is ever going to seize a tanker full of solar energy
www.washingtonpost.com/world/2025/1...
U.S. seizes ‘very large’ oil tanker off Venezuelan coast, Trump says
The seizure was a significant escalation in the U.S. pressure campaign against Venezuelan President Nicolás Maduro and his country’s oil-dependent economy.
www.washingtonpost.com

Reposted by Jennifer Pett‐Ridge

drnereide.bsky.social
Nereide @drnereide.bsky.social · 13d
🧵
Here's Ellen Harding Baker's "Solar System" quilt.🧪

This is the story.🔭

Back in 1876, an Iowa mom with 7 kids, E. H. Baker, decided that cooking & raising children wasn’t enough for her.

She started working on a wool quilt showing the solar system.

americanhistory.si.edu/collections/...

1/7
1883 wool quilt by Ellen Harding Baker: a vast black sky with a blazing yellow Sun at center. Mercury, Venus, Earth with its Moon, and Mars orbit it. Four clumps of objects beyond Mars represent asteroids. Jupiter shows its four Galilean moons, Saturn its rings, Uranus six moons, Neptune one. Top left: streaking Coggia’s Comet. Hundreds of stars dot the darkness. Hand-stitched by an Iowa mom.

Reposted by Jennifer Pett‐Ridge

stableisotopeecol.bsky.social
Stable Isotope Ecology (CER, Kyoto Univ.) @stableisotopeecol.bsky.social · 18d
Precipitation increase promotes soil organic carbon formation and stability via the mycorrhizal fungal pathway | PNAS www.pnas.org/doi/10.1073/... #stableisotopes
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org

Reposted by Jennifer Pett‐Ridge

edithhammer.bsky.social
Edith Hammer @edithhammer.bsky.social · 23d
We're having this very fun science outreach project where we want to create awareness of the wonders of the world beneath our feet. The soil is alive!! You find us on our youtube channel at
www.youtube.com/@Soilwatching
#soilchip #microworld #biodiversity #microscopy #underground #hiddenworld
Soilwatching
Dive into the wonders of the world below your feet with the researchers of the SoilChip group at @LundUniversity! We want to share unique footage from our cyborg soils, transparent labyrinths that me...
www.youtube.com

Reposted by Jennifer Pett‐Ridge

momedinamunoz.bsky.social
Mónica Medina @momedinamunoz.bsky.social · 24d
Very proud to be Colombian right now! 🇨🇴 I hope all neighboring countries follow suit soon! news.mongabay.com/short-articl...
Colombia bans all new oil and mining projects in its Amazon
Colombia will no longer approve new oil or large-scale mining projects in its Amazon biome, which covers 42% of the nation’s territory, according to a Nov. 13 statement by its environment ministry. Ac...
news.mongabay.com

jeffinerca.bsky.social
Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · Nov 22
Awesome, thx!!

Reposted by Jennifer Pett‐Ridge

frantecol.bsky.social
Franciska de Vries 🟥 @frantecol.bsky.social · Nov 18
"Long-term research carries an intrinsic paradox: its true value emerges only after decades, whereas political agendas often demand short-term results. This mismatch makes sustained monitoring one of the easiest targets when public budgets come under pressure."
www.nature.com/articles/s41...
Safeguarding long-term research in ecology and evolution - Nature Ecology & Evolution
Long-term research projects are essential for predicting the ecological and evolutionary responses of species to global change, yet their continuity is often threatened by uncertainties over funding. ...
www.nature.com

Reposted by Jennifer Pett‐Ridge, Maria Faticov

anthomycota.bsky.social
Mark A. Anthony @anthomycota.bsky.social · Nov 17
"A growing body of evidence that the ‘Gadgil effect’ is not universal, even in the N‐poor litter of temperate pine forests where it was first described"

besjournals.onlinelibrary.wiley.com/doi/pdf/10.1...
More exceptions than rules: Variable effects of ectomycorrhizal fungi on leaf litter decomposition in temperate pine forests
The results add to a growing body of evidence that the ‘Gadgil effect’ is not universal, even in the N-poor litter of temperate pine forests where it was first described and is often invoked. Further...
besjournals.onlinelibrary.wiley.com