iiinova — where your digital self keeps evolving

Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 23/09/2026

Just finished a kickoff meeting w the “ActiveSOIL” team— and I can barely believe my good fortune - getting to work on soil health w this amazing group! w/ @andreasrichter.bsky.social @cemess.bsky.social, Caitlin Singleton (Aalborg University), and Michael Obersteiner (University of Oxford)

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 20/09/2026

An energy story: 4 years ago, I got a call from former Sec of Energy Jennifer Granholm (actually a VM — I was on a flight when she rang). With the news that I would receive the DOE Office of Science Lawrence Award. It was utterly unexpected.

Side of a residential home with an electric storage batte

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 28/05/2026

#SOM2026 in São Paulo has been amazing! Huge thanks to the hosts who invited me to give a keynote talk about surprising biology in deep soils Escola Superior de Agricultura Luiz de Queiroz - ESALQ/USP and the CCARBON/USP - Center for Carbon Research in Tropical Agriculture

Jen Pett-Ridge standing in front of large sign welcoming delegates to Soil Organic Matter 2026 meeting

Three soil scientist posing together at the Soil Organic Matter 2026 meeting

Jen Pett-Ridge and Diego Barcellos pose for a photo at the Soil Organic Matter 2026 meeting

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 18/04/2026

Today was a good day. Each year in mid-April, I give one of my favorite lectures...at Berkeley High School's 9th grade Climate Conference. We talk about Farming Carbon, how rocks (minerals) + roots + microbes + water = soil. We go over how the earth system is changing...

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 05/03/2026

EMSL-JGI meeting in Seattle was pretty great! (although I’ll be happy when we can stop talking nonstop about AI and just use it like any other tool). Best part by far was getting to see my dear friend and former postdoc Ashley Campbell.

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 23/02/2026

Ahh, if theres a massive Feb snowstorm in DC, I must be here for the Genomic Sciences mtg. Without fail…

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 09/02/2026

Felicidades Benito!!! What a wonderful love letter to Puerto Rico, La Isla del Encanto. We are celebrating with tostones, arroz maspasteao, amarillos, pinchos, pastelillos and coco mojitos!!

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 07/11/2025

What a beautiful agrivoltaics facility Majdi Abou Najm and @ucdavis.bsky.social colleagues have built. Thanks for the fantastic workshop and tour!

Three people standing in an agricultural field in front of raised pink-hued solar panels, titled towards the sun

people standing in an agricultural field in front of raised solar panels, titled towards the sun

A researcher gesturing toward vertical rows of solar panels arranged like fences over an agricultural field

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 04/10/2025

Was great to share “The music of soil” with the IU Biology Dept EEB seminar. I had so many wonderful conversations... Thanks for hosting me! @richphillipslab.bsky.social @jaytlennon.bsky.social Jake McKinlay Jen Lau Heather Reynolds Andre Franco Kim Novick and many wonderful students.

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 09/06/2025

The *Microbes Persist* project I lead is featured in LLNL’s new Science and Tech magazine. We’re trying to understand how genomes of tiny organisms control the creation & breakdown of soil organic matter— a critical ingredient in keeping our soils healthy and productive. str.llnl.gov/str-march-20...

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 25/04/2025

Nothing quite like finding out your kiddo is learning about your life’s work in her Bio class. And enjoying it!!

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 05/01/2025

Last day of the baking season. Tomorrow I go back to doing science.

Multiple trays with different types of cookies and sweets on top of a table

Several trays with different types of fresh baked croissants

A large assortment of decorated sugar cookies

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 12/12/2024

Deep rooted perennial grasses—are they reliably benefitting soil #carbon persistence? We’ve got some new data on C,N, #radiocarbon, density fractions from the US Midwest and High Plains. Come discuss this afternoon! #AGU24 W/ #CABBI #LLNL Manisha Dolui @karis-mcfarlane.bsky.social

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 11/12/2024

@allegramayer.bsky.social at #AGU24 showed the counter factual fate of #BiCRS feedstocks— v import info for #LCA. Processed products (eg char) produce a fair amt of N2O; less so in low pH soil. Gasification comes out best— w least GHG emissions

Presenter at podium describing a projected slide with map of USA BiCRS opportunities

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 09/12/2024

Deep breath… before a jam packed week of sciencing. #AGU24

Convention center next to a rainy street with the AGU24 sign

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 23/11/2024

As part of her thesis work, Abbygail R. McMurtry added 13C enriched roots to paleosols from Nebraska and tracked their fate in mineral-associated pools w/ Marie-Anne de Graaff @emsaurios.bsky.social @aaberhe.com he.com @cwmsoils.bsky.social @moreorloess.bsky.social #NSF #nanoSIMS #LLNL #doescience

NanoSIMS mass spec images of Brady soils amended with 13C root detritus, showing associations between mineral particles,aggregates, and fungal hyphae

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 23/11/2024

#NanoSIMS evidence of 13C- starch and 15N-ammonium assimilation

NanoSIMS mass spectrometer and florescence images illustrating how cells of F. sacchari from sediments of Great Boiling Spring have assimilated 13C- starch and 15N-ammonium

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 15/11/2024

And then there was one… Celebrating the final ‘cosm harvest from our 7th/last 13CO2 experiment of 2024. We’re studying how the psY gene affects CH4 fluxes and soil C cycles. Much gratitude to Rina Estera, Flor Ercoli, Pam Ronald Lab, Dave Savage Lab & many others @innovativegenomics.bsky.social

A single soil megacosm holding a rice plant, surrounded by racks in a greenhouse

A pile of cut apart, discarded soil megacosm containers, and one blue lab glove, inside a greenhouse.

Three researchers cutting apart a one meter tall megacosm of soil on a table.

Two researchers standing in front of megacosms holding rice plants, next to equipment for measuring photosynthesis, inside a greenhouse.

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 13/11/2024

Heading to Laramie WY today for our last regional conversation about #roadstoremoval - our national, high resolution analysis of capacity and costs for #CDR. Will be one of the most interesting convos yet— given the state’s major interest in a new carbon economy and right-leaning political landscape

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 11/11/2024

Twas a delight to have many friends & colleagues at my @ESPM_Berkeley Hans Jenny lecture, “The Music of Soil”. Big thanks to Victor Leshyk for this gorgeous visual metaphor. Too bad the sound clips didn’t play— but I guess my singing worked well enough!

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 13/10/2024

I generally say ‘yes’ when I get the chance to do field work…spent the last 2 days helping BruceHungate & Ecoss (NAU) collect the last samples from a 22 year soil warming experiment. Big feels… & I’d rate this in the top 1% most beautiful field sites ever!!

Hart Prairie grassland with golden leaves of an aspen stand in the background, overlain by blue sky and puffy clouds

Researcher holding a clipboard in front of a weather station in a grassland/Ponderosa Pine ecosystem

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 23/07/2024

Wonderful day at @StellenboschUni giving a lecture on roads2removal.org and meeting the members of @thuls.bsky.social research group. A fantastic bunch of microbial ecologists! Can’t wait to see them again at @ismeoffice.bsky.social #ISME19 mtg in Cape Town.

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 20/05/2024

Laying claim— officially the new OG of the Soil Ecology Society mtg. All of a sudden 20yrs flew by! #soilhealth #SES2024 Stuart Grandy, Kirsten Hofmockel, Mike Weintraub, Loren Byrne, @noahfierer.bsky.social

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 26/02/2024

We’re doing a little kitchen enviro science. Hypothesis is that no-till soil is more biodiverse. But Diversity is a tough one-you have a gut sense of it, but then Simpson or Shannon tell you different. You realize you can never sample enough. So we’re learning about soil heterogeneity the hard way.

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Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social · 12/12/2023

This Thursday is #CDR day at #AGU23! Join us for posters in the AM & then a series of talks re. opportunities to capture & durably store atmospheric CO2. Many of the #RoadstoRemoval authors will be presenting. roads2removal.org

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