Donald E. Matthieu III

New in Geoderma: "Dry rainfed conditions are key drivers of the effect of conservation tillage and a nitrification inhibitor on N fate and N2O emissions: A field 15N tracing study" by Sandra García-Gutiérrez [...] Sonia García-Marco. buff.ly/6HfZB3Z
@La_UPM @UAM_Madrid

New in Geoderma: "Organo-aluminum complexation as a dominant metal control on soil carbon storage in Andisols: Global evidence across pedogenic and pH gradients" by
Morimaru Kida, Hirohiko Nagano, Hiroaki Shimada [...] Rota Wagai. buff.ly/ic4D65R

New in Geoderma: "Spectroscopic analysis shows crandallite can be a major component of soil phosphorus" Christian Vogel, Julian Helfenstein, Michael Massey, Ruben Kretzschmar, Ulrich Schade, René Verel, Oliver Chadwick & Emmanuel Frossard. buff.ly/jwY0l4q
@ETH_en @WUR ay

It is completely reasonable to email your dean and/or Provost to ask what is being done at your university to stop this from happening to your students

How PFAS are entering America's water supply PFAS are known to cause serious health issues and are seeping into America's water supply, endangering millions of people who have been using the contaminated water .

abcnews.com/US/pfas-ente...

How climate change is impacting drinking water in the US Climate change is making access to drinkable water more difficult in the United States.

I had a great time talking with @zialyle.bsky.social &
@costasamaras.com about their new study on how climate change poses risks to U.S. drinking water.

Water utilities for roughly a fifth of the U.S. population are at high risk from climate hazards.

abcnews.com/US/climate-c...

I think, or at least i want to believe, that there is enough opposition to this kind of thing that this won't come to pass. Academic common sense will win in the end on this kind of thing.

New in Geoderma: "Dissolved organic matter and high precipitation drive in-situ transition from silandic to aluandic properties" by Antonia Zieger, Klaus Kaiser & Martin Kaupenjohann. doi.org/10.1016/j.ge... @UniHalle

Thousands of CEOs just admitted AI had no impact on employment or productivity—and it has economists resurrecting a paradox from 40 years ago | Fortune In the 1980s, economist Robert Solow made an observation that reminded economists of today’s AI boom: “You can see the computer age everywhere but in the productivity statistics.”

"Nearly 90% of firms said AI has had no impact on employment or productivity over the last three years, the research noted."

Environmental remediation disaster news out of Missouri: "Demolition set for homes contaminated by radioactive waste in Florissant." fox2now.com/news/missour...

Kind of my thoughts as well. I have not touched AI and my goal at this point is to avoid using it with the exception of potential environmental/hydrologic modeling applications.

🚨Funded #PhD opp🚨 in my lab, co supervised by Vincent Maire at Université du Québec à Trois-Rivières

Linking above-and belowground plant #phenology to carbon cycling in #peatlands

You can see full advert (in english/french) here: wetlandresilienceresearchgroup.com/Opportunitie...

Please share!

r/analytics • IOh We just found out our AI has been making up analytics data for 3 months and I'm gonna throw up. Support So we've been using an Al agent since November to answer leadership questions about metrics. It seemed amazing at first fast answers, detailed explanations, everyone loved it. I just found out it's been hallucinating numbers this entire time. Our VP of sales made territory decisions based on data that didn't exist. Our CFO showed the board a deck with fake insights. The Al was just inventing plausible sounding percentages. I only caught it by accident when someone asked me to double check something. I started digging, and holy shit, it's bad.

lol this is gonna burst so fucking hard

PhD graduate assistantship in soil health at university of Wyoming!!!

2 PhD Positions in Plant Stress Physiology, Nitrogen & Photosynthesis at Wageningen & Utrecht University, Netherlands Two fully funded PhD positions are available in the Netherlands focusing on plant stress physiology, nitrogen acquisition, and photosynthesis in novel protein crops under climate stress.

2 PhD Positions in Plant Stress Physiology, Nitrogen & Photosynthesis at Wageningen & Utrecht University, Netherlands

Two fully funded PhD positions are available in the Netherlands focusing on plant stress physiology, nitrogen acquisition, and photosynthesis in novel protein crops under climate…

I will keep adding entries as they are revealed by detailed searches into the Epstein files. My thread focuses on researchers and academics who, well after Epstein's 2008 conviction, have sought contact with, received funding from, and let themselves be promoted by him.

A crisis emerges across the US as ‘forever chemicals’ quietly contaminate drinking water wells The roughly 40 million Americans who get drinking water from wells are at particular risk when harmful forever chemicals contaminate the supply.

apnews.com/article/pfas...

And to think, I was going to log off for the night.....

You can test new tech ideas using the Seinfeld Test

Would the product eliminate the plot of an episode? (Google maps, cell phones, paypal, battery packs)

Good tech.

Would the product inspire new Seinfeld plots? (NFTs, AI chatbots, crypto currency, blindboxes, metaverse land sales)

Bad tech.

My colleague Christian Poll offers a PhD position in our group at University of Hohenheim, we would be glad if you share this opportunity with potential candidates. His project EcoFuture KAP4 is an interesting collaborative project with University of Tübingen. dbges.de/assets/Uploa...

South Korea’s ‘world-first’ AI laws face pushback amid bid to become leading tech power The laws have been criticised by tech startups, which say they go too far, and civil society groups, which say they don’t go far enough

www.theguardian.com/world/2026/j...

Please join us at #ICOM2026 in Cairns, Australia, this summer. @anthomycota.bsky.social and me are organising a special session on mycorrhizae and biogeochemical cycles at the International Conference on Mycorrhiza (Session 23, icom2026.org). Abstract submission is open until February 28, 2026.

PhD Fellowship in Plant–Soil Interactions at the University of Copenhagen A funded PhD fellowship at the University of Copenhagen focusing on plant–soil interactions, root growth, and soil carbon dynamics in diverse grassland systems.

PhD Fellowship in Plant–Soil Interactions at the University of Copenhagen

A funded PhD fellowship at the University of Copenhagen focusing on plant–soil interactions, root growth, and soil carbon dynamics in diverse grassland systems.

Deleting Signal now that I know it's compromised. Find me on Bluesky. Oh wait you already found me and I am not deleting Signal. Lol.

Environmental drivers can shift in effect direction when acting in concert with other factors Results from a recent paper from our group in Nature Communications

Environmental drivers can shift in effect direction when acting in concert with other factors

open.substack.com/pub/matthias...

Remarkable stat.

And the frightening thing is that this is potentially coming to Tucson Arizona :(

Exclusive | China’s Top General Accused of Giving Nuclear Secrets to U.S. Bribery allegations have also been leveled against Gen. Zhang Youxia, whose downfall carries implications for the country’s military readiness.

WSJ: China’s senior-most general is accused of leaking information about the country’s nuclear-weapons program to the U.S. and accepting bribes for official acts, including the promotion of an officer to defense minister, said people familiar with the allegations.

www.wsj.com/world/china/...