Chris Schadt

MARCH 7th, WASHINGTON D.C. and nationwide! TAKE BACK our SCIENCE RALLY! CHECKLIST: REGISTER TO HOST LOCAL RALLY SIGN UP TO VOLUNTEER AT YOUR LOCAL RALLY LEARN MORE ABOUT YOUR LOCAL RALLY DONATE TO FUEL THE FIGHT FOR SCIENCE! ALL OF THE ABOVE AND MORE AT: standupforscience.net/march7

SCIENCE FIGHTERS! We need YOU to rally with us on March 7th in Washington D.C. or at your local rally! Visit standupforscience.net/march7 to learn more!

#March7
#rally
#standupforscience
#science
#savescience

Get in, dorks. We're ready for round two.

RALLY TO TAKE BACK SCIENCE! 🔬🧪✊
March 7th, 2026 in Washington, DC

Learn more at www.standupforscience.net/ma... (link in our bio.)

Come join us at ORNL! jobs.ornl.gov/job/Oak-Ridg...

Way to much red on this map. Western fire season could be crazy this year unless some of this deficit gets made up soon!

This position is still open. The Weisberg lab is recruiting a postdoc or Ph.D. student to study horizontal gene transfer in plant-associated microbial communities. Please see the job ad for more information and feel free to contact me if you have any questions!

There may be a paywall on the journal copy, but an archived preprint is available on OSTI if you are interested - www.osti.gov/pages/servle...

Good news for new year! This paper is the Editor's Pick for the Jan 1st issue of @phytopathology.bsky.social! Great collaboration w/ Luz Serrato-Diaz who was a Visiting Graduate Fellow in 2019 working with myself & @microbiojess.bsky.social at ORNL on RADseq analyses of this important pathogen

Time series of global temperature anomalies from 1980 to present with predictions for 2025 (made in Dec 2024), and 2026, along with the YTD estimate for the 2025 (with only one month to go).

Scientists are supposed to be happy when their predictions are skillful, right?

Why do I not feel happy?

Today was the last day for our SPRUCE experiment. Bringing it to a close after 10 years! mnspruce.ornl.gov

Global Temperature in 2025, 2026, 2027 James Hansen, Pushker Kharecha, Dylan Morgan and Jasen Vest

Some grim projections in here jimehansen.substack.com/p/global-tem...

Trump administration to dismantle key climate research center in Colorado Governor Jared Polis warned that breaking up Boulder’s NCAR would put ‘public safety at risk’

More shit going down... www.theguardian.com/us-news/2025...

The preprint for a new study is now available on biorxiv! Day late for #worldsoilday, but out none the less! Stands of Populus trees were studied over the steep temp/rainfall gradients of the Cascade Mts of Washington State to understand their effects on microbial interactions

#WorldSoilDay
Healthy soil = Healthy food = Healthy humans = Healthy planet

70% of our soil is already degraded.
Let’s act before it’s too late.
#SaveSoil
SaveSoil.org

Seasonal Dynamics of Previously Unknown Fungal Lineages in Tundra Soils The finding that microbial communities are active under snow has changed the estimated global rates of biogeochemical processes beneath seasonal snow packs. We used microbiological and molecular techn...

Stealing idea from another on here. In honor of #worldsoilday, reposting my first paper. Was just talking with an intern today about the ancient TA cloning/sanger sequencing techniques we used back then, but I've basically doing the same research for over two decades now!
doi.org/10.1126/scie...

Awesome idea! Heres mine... I apparently have a couple of decades on ya! -
Christopher W. Schadt et al. ,Seasonal Dynamics of Previously Unknown Fungal Lineages in Tundra Soils.Science301,1359-1361(2003).DOI:10.1126/science.1086940
www.science.org/doi/full/10....

Atlas Introduction — Global Soil Biodiversity Initiative

🪱🐜 Happy #WorldSoilDay!! 🕷️🪲

Although we celebrate soil everyday, today is a great reminder to appreciate the breadth of diversity beneath our feet.

Check out the GSBI atlas to explore the organisms that call soil home!

www.globalsoilbiodiversity.org/atlas-introd...

Happy world soil day to all those "dirty" nerds that celebrate! Some pleasing pics of few times I got away from my desk to get dirty! - www.un.org/en/observanc...

MIT report: AI can already replace nearly 12% of the U.S. workforce | Fortune The window to treat AI as a distant future issue is closing.

I have a standing search from google for ORNL research stories. This one lit up my feed today :( Unfortunately my unofficial guess is that 12% probably cost even more in energy than the humans would!

Short‐ and long‐read metabarcoding of Archaeorhizomycetes reveals high phylogenetic diversity structured by vegetation and climate Archaeorhizomycetes is a class of globally widespread soil-dwelling fungi, originally proposed to be associated with plant roots, but their ecology and nutritional mode are not clearly defined. To i...

Great new study about a group of fungi first reported in my dissertation work! -- Short‐ and long‐read metabarcoding of Archaeorhizomycetes reveals high phylogenetic diversity structured by vegetation and climate --New Phytologist @newphyt.bsky.social nph.onlinelibrary.wiley.com/doi/full/10....

Im suffering from a big case of nostalgia today after this trip and working there so many years and didnt take nearly enough photos.

Collected additional peat material for a planned incubation experiment and a sampling for survey of black spruce tree needle endophyte composition accross warming treatments.

Final peat coring campain of our decade+ effort on the SPRUCE experiment in MN this last week. We had a big team effort to complete 4X as many cores as in past campaigns (more replicates and archive material!),

Just pulled out my plots/sensors from Oregon on Wychus Creek the week before last. Last night 1 of those sites looks to have burned (top center circle) in Flat Fire, and fire is approaching another site just decommissioned at Camp Polk (bottom left circle) and outskirts of Sisters OR.

Field work! Weedy edition… Can you find the Populus deltoides?

Keep sciencing. We are living through a time when looking at a rock and wondering how old it is qualifies as an act of resistance.

Come work at the UMich Biological Station as a Michigan Fellow (you don't have to be a biologist)! Apply today: societyoffellows.umich.edu/uncategorize...

And on the 6th day the lord created Illumina, and he said, “Damn, that craps expensive!”

Kenyon is hiring a TT microbiologist! Please share widely. I’m the search chair & am happy to answer any questions. careers.pageuppeople.com/695/cw/en-us...

Chaos on the way home from the beauty shop! FYI - photos were taken at pickup and in driveway. No laws were broken during drive. 😉