High-resolution carbon isotope record from Svalbard reveals elevated atmospheric CO2 during the Middle Devonian Taghanic crisis The Devonian was a time of climatic upheaval, with many biotic crises, anoxic events and dramatic climatic changes. It is yet unclear what the control…

This is the first such estimate of rapid CO2 change during the Devonian (3/3).

www.sciencedirect.com/science/arti...

Two graphs: Top graph shows published CO2 estimates for the Eifelian, Givetian, and Frasnian. Values range from ~500 to 1500 ppm. Bottom graph shows new high-resolution CO2 estimates in the Givetian. Values range from ~600 ppm to 4500 ppm, but most likely values reach ~1400 ppm.

We find that CO2 levels fluctuated on short timescales (<100,000 years), from background levels of 623 ppm (range: 473 to 773 ppm) to as much as 1373 ppm (range: 882 to 2082 ppm) during the Taghanic Crisis (2/3).

Multiple photos of rocks in Svalbard, including an aerial view of the landscape with gray and beige sedimentary rocks and several photos showing these rocks at outcrop scale.

We present new high-resolution carbon isotope data from #Svalbard to investigate atmospheric CO2 during the Middle Devonian, particularly the Taghanic crisis (1/3).

Enjoying meeting with prospective Geosciences students at SLCC this morning! @ullafayette.bsky.social

Heading to SLCC for a recruitment event! @ullafayette.bsky.social

Four photos of rocks with swirling textures.

Here are four photos of squiggly rocks on Earth.

Can you guess which of these, if any, are evidence of past life on Earth?

If we received similar photos, from let's say Mars, would we know if it is life or not?

Deadline Friday!

Come check out poster 900 this afternoon #agu25

We are hiring!

Tenure-track Assistant Professor position in Water Resources.

[This is the 2nd faculty position planned for Fall 2026.]

Join our dynamic team in the School of Geosciences!

Apply here: louisiana.csod.com/ux/ats/caree...

Please share!

Calling all soil scientists!

Did you know it's 1 week til December?

Apply to join our amazing faculty at the link below.

This is some really cool work led by Dr(!) Ishita Pal, recent graduate of the Earth and Energy Sciences Program at @ullafayette.bsky.social!

Measurements of actual star dust!

Check it out open-access here: iopscience.iop.org/article/10.3...

And apply here!

louisiana.csod.com/ux/ats/caree...

Lafayette is at a crossroads. The University sits at the hub of it all. Prologue: Skip back to the turn of the 20th century when Lafayette as we know it was in its infancy. Back then, “downtown” meant dusty roads, a few streetlights and a railroad station.

More on Lafayette here: louisiana.edu/news/lafayet...

Lafayette is known for being a vibrant hub for cultural activity w rich arts, music, food, and festival scene. Our Parish is the state’s fastest growing, we are ranked as a top millennial move-to destination, one of the 50 best places to live for families, & best place to live in LA.

For those that don't know, the University of Louisiana at Lafayette is an R1 University, and largest of 9 universities in the University of Louisiana System.

I am obviously biased, but we have wonderful faculty, staff, and students that make this a great place to work!

We are a small unit, ~100 students and 9 full-time faculty, with a large research impact. Our Environmental Science program has a long history in soil science since its inception, and we are looking to replace expertise of a soil science faculty that retired this year.

This is a great position for someone who is passionate about hands-on learning experiences in the field or lab, and dedicated to teaching and training graduate students in interdisciplinary science.

We are hiring a tenure-track Assistant Professor in Environmental Geosciences — with a focus on Soil Science!

louisiana.csod.com/ux/ats/caree...

Please share!

Callan perks out of a large (dry) pothole while five of his students dangle their legs in.

Exploring potholes at Belle Isle in Richmond.⚒️

🗓️ Apply by: December 1, 2025 (priority review)

📅 Start date: August 1, 2026

Learn more & apply here 👉 louisiana.csod.com/ux/ats/caree...

#SoilScience #EnvironmentalScience #Geoscience #FacultyJobs #AcademicTwitter #ULLafayette

Lafayette is a vibrant hub for cultural activity w/ rich arts, music, food, and festival scene.

We are state’s fastest growing parish, a top millennial move-to destination, @fortune.com 50 best places to live for families, and @usnews.com best place to live in Louisiana.

@ullafayette.bsky.social is an R1 doctoral research university — the largest of 9 universities in the University of Louisiana System — and has a managed wetland right on campus! 🐢💧

We have wonderful faculty, staff, and students that make this a great place to work!

As new faculty, you’ll:

🔬 Build an innovative, externally funded research program

📚 Teach and mentor students in Environmental Sciences

🌿 Develop hands-on learning experiences in the field and lab

🤝 Collaborate across disciplines in our Earth & Energy Sciences PhD program

🌎 We’re hiring!

The School of Geosciences @ULLafayette
is seeking a tenure-track Assistant Professor in Environmental Geosciences — with a focus on Soil Science 🌱

If you’re passionate about soils, sustainability & student success, keep reading 👇

A totally representative 10-day sample of temperatures in Lafayette, LA.

What many don't realize is that the annual average daily temperature for Lafayette, Louisiana (69F) falls right between that of Los Angeles (66F) and Bermuda (72F).

Some might say we have the optimal Goldilocks temperature.

I think the city should market that more.

Ready for the Lafayette Parish School System College and Career Fair with @ullafayette.bsky.social School of Geosciences!

A beautiful morning for Science Day @ullafayette.bsky.social

Come visit us at Hamilton Hall to see what the School of Geosciences has to offer!

One new scholarship for this year targets undergraduate or graduate students with interests in subsurface geology.

In addition to the scholarship funds, you also receive practical, hands-on learning experience through an internship for course credit during the semester!

Some of our Geosciences scholarship awardees

The @ullafayette.bsky.social School of Geosciences awarded 61 scholarships for the 2025-2026 academic year!

Interested in joining our Geology or Environmental Science community? Apply here: louisiana.edu/apply.

Oxygen Isotope Bias Arising from the Drying Process of Nanocellulose: Implications for Studies Using Subfossil Wood The oxygen isotopes (δ18O) from tree rings in living and subfossil wood provide valuable climate records across different periods, yet their climatic interpretation fundamentally depends on the accura...

Could your drying method be biasing your oxygen isotope data? See our latest work in @pubs.acs.org Analytical Chemistry here: pubs.acs.org/doi/10.1021/...