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Posts by Tristan Caro

GTDB - Genome Taxonomy Database The Genome Taxonomy Database (GTDB) is an initiative to establish a standardised microbial taxonomy based on genome phylogeny.

GTDB release 11 based on RefSeq 232 (R11-RS232) is live at gtdb.ecogenomic.org. This release covers 901,341 genomes (23% increase) and has 199,923 species clusters (39% increase). Release notes at: forum.gtdb.ecogenomic.org/t/announcing.... Release statistics at: gtdb.ecogenomic.org/stats/r232.

5 days ago 49 29 0 5

Pre-2022 data is like pre-1945 steel.

1 week ago 97 17 1 2
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What the heck is wrong with our AI overlords? New profile of Sam Altman shines a light on a whole industry.

The flexible principles and cartoon villainy currently in vogue among so many of our narcissistic tech and political leaders could lead the public to sour on AI tools entirely.

1 week ago 59 13 9 8
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NSF LTER program “archived”.

LTER=“Long Term Ecological Research”.

This program has been incredibly successful, incredibly frugal for what they accomplish, and…of course…targeted by evil know-nothings.

My heart is breaking.

2 weeks ago 385 189 18 61

I'd be happy to discuss and receive feedback. If this is of-interest, get in touch!

2 weeks ago 1 0 0 0

2. Metabolomics IDs specific compounds as key to the microbial drought response

3. Metagenomics indicates that drought-stressed "survivalists" are adapted for more rapid growth - we see evidence in their genome character.

4. We measure how methanotrophy and respiration respond in tandem! (2/3)

2 weeks ago 1 0 1 0

Excited to share a new preprint: "SIP-enabled multiomics reveals microbial growth responses to drought and rehydration"

1. We use three forms of stable isotope probing to measure in situ microbial growth under both dry and wet conditions

(1/3) www.biorxiv.org/content/10.6...

2 weeks ago 5 3 1 0

It's premiering on PBS tomorrow!

Get the PBS app on your streaming device and watch.

2 weeks ago 101 37 5 1
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🌡️ Another day, another record high in Boulder. Sunday reached 82° and was our 10th record high set in the last 12 days.

📖 More historical context: 9 of the warmest 11 March days recorded since 1893 have occurred in the last two weeks... #COWx #Boulderwx #colorado #Heatwave

3 weeks ago 50 9 2 2
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Garrett Boudinot and the Many Paths to Entrepreneurship Garrett Boudinot never initially set out to start a company. But years of climate research eventually led him to found Vycarb, a startup accelerating natural

"Science finds, industry applies" was the motto of the 1933 Chicago World's Fair (minus the awkward "man conforms" bit 😉 )

Former INSTAAR Garrett Boudinot is putting that adage into action. He now leads a thriving climate tech startup built on lessons from his research career.

3 weeks ago 4 1 0 0
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$2.45 billion NIH grant cuts and ~2300 terminated active research grants were DOGE'd in early 2025
Who were most affected?
www.pnas.org/doi/full/10....
Early career and women researchers

4 weeks ago 390 257 10 17

So excited to release this research we've been cooking on for the last 6 months! And huge shout out to @joeyshoyer-yall.bsky.social who led much of the technical analysis. Going to share a couple interesting findings below

4 weeks ago 17 8 2 0

take the everclear and put it in a glass science-looking bottle with a hazard triangle :)

4 weeks ago 5 0 0 0

I'm with Richard on a lot of this & would also add that pushing for systemic solutions *is* a behavior change. It needs to be collective to be effective, which is a different kind of lift than "many people independently make the same, often costly change for their household."

4 weeks ago 22 6 0 0
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Rates of Mineral Dissolution from the Flask to Enhanced Weathering - Eos Assessing the rate that weathering could draw carbon dioxide out of the atmosphere requires understanding why lab- and field-based rate measurements differ by orders of magnitude.

Assessing the rate that weathering could draw #CarbonDioxide out of the atmosphere requires understanding why lab- and field-based rate measurements differ by orders of magnitude.🔍

🔗 Learn more in @eos.org: buff.ly/RFnghvJ

#AGUPubs #ClimateChange #EarthScience @reviewsgeophysics.bsky.social

4 weeks ago 32 6 0 2
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China pledges billion-dollar spending boost for science Funding for national laboratories and important research projects would increase under the government’s plans.

The Chinese government’s investment in science comes in sharp contrast to US President Donald Trump’s administration, which has tried to cut science spending since Trump took office in early 2025. Many of those proposed cuts have so far been rejected by Congress. www.nature.com/articles/d41...

1 month ago 6 4 1 0
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Revealed: the world’s worst mega-leaks of methane driving global heating Exclusive: Fixing a leak can be simple and equivalent to closing a coal power station, making lack of action maddening, say analysts

"the top 25 list..is dominated by facilities in Turkmenistan...Super-polluting plumes were also seen in the US, the largest detected in 2025 occurring in Texas.. Venezuela (five) and Iran (three) also had multiple mega-leaks.

www.theguardian.com/environment/...

1 month ago 1 4 0 0

And if you have not been accepted, understand that this is a VERY weird time for grad admissions. Lack of acceptance may not be due to YOU, but due to uncontrollable factors at the university. Keep trying in the future.

1 month ago 40 24 1 0
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Home | Demirer Lab

We're hiring a postdoctoral researcher in plant genome engineering with expertise in synthetic biology, gene editing, and omics, with an interest in developing next-generation technologies for plants.🪴🧬

Available immediately. If interested, send your CV!

Feel free to share with your networks.

1 month ago 7 12 1 0

If he's going to get a national profile on the strength of a younger woman's campaign, I'm going to come out and say it: during his short-lived tenure as a math professor, Biss had an inappropriate romantic relationship with one of his undergraduate students. I was that student.

1 month ago 13589 4972 245 363
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China pledges billion-dollar spending boost for science Funding for national laboratories and important research projects would increase under the government’s plans.

Meanwhile
"Although the country’s latest R&D budget proposal is the same as the target set in the 14th FYP, China’s spending on science and technology in absolute numbers is rising significantly (...) Today’s 7% represents an absolute annual increment far exceeding that of five years ago”

1 month ago 19 12 0 2
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A single course of antibiotics can have lasting effects on your gut microbiome, with changes that last well beyond 4 years. Three types of antibiotics stood out for their long term disruptive impact (3 at left, Figure)
nature.com/articles/s41...

1 month ago 249 102 13 9
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Water-Isotope Proxies in Lake Sediments: Calibrations, Uncertainties, and New Directions Paleoclimatologists have long recognized that H and O isotopes of materials in lake sediments can help reconstruct past climate and environmental change. Here, a global synthesis of O isotopes in lab-...

A deep dive into a suite of water isotope proxies, many thanks to this great team: @yarrowaxford.bsky.social
Bryan, Gabe, Wil & Jeemin

1 month ago 16 5 0 1
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What Is The Antidote to Capitalism? Economic Democracy | Jason Hickel With democratic control over our productive capacities we can stop climate breakdown in short order. We can overcome the capitalist law of value, and organize production around social and ecological o...

✍️The climate crisis isn’t a tech problem — it’s a system problem.

👨Jason Hickel (ICTA-UAB researcher): capitalism keeps fossil fuels profitable and blocks the transition.

The alternative? Economic democracy 🌍

www.filmsforaction.org/articles/wha...

@jasonhickel.bsky.social

1 month ago 4 6 0 0
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Uncertainties of enhanced rock weathering for climate-change mitigation - Nature Reviews Earth & Environment Enhanced rock weathering (ERW) is a carbon dioxide removal (CDR) strategy that converts atmospheric CO2 to stable carbonates by applying minerals to agricultural land. This Perspective discusses the p...

Enhanced rock weathering (ERW) on agricultural soils is being considered as a carbon dioxide removal strategy. However, uncertainties remain regarding feedstock availability, plant-soil impacts, CDR efficiency, and socio-economic considerations, limiting large-scale deployment. 🧪

1 month ago 45 8 0 1
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Bacteria Decide the Ocean’s Dissolved Organic Carbon Abundance - Eos Dissolved organic carbon prevalence follows from how many bacteria are around to eat it, modeling suggests.

Owusu et al. say that either top-down control (e.g. grazing) or nutrient limitation (e.g. N) shape bacterial communities which in turn set DOC levels in the oceans. The EOS piece by @saimamay.bsky.social is a good summary.

eos.org/research-spo...
@saimamay.bsky.social

1 month ago 2 1 0 0

Our perspective on ERW -Uncertainties of enhanced rock weathering for climate-change mitigation- was featured in the New Scientist

Here is the paper: www.nature.com/articles/s43...

1 month ago 7 4 2 1

Would it be possible to plot all directorates on the same plot, normalized to 2024 funding rates (so we get a sense of which directorates may be prioritized?)

1 month ago 0 0 0 0
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‘Unbelievably dangerous’: experts sound alarm after ChatGPT Health fails to recognise medical emergencies Study finds ChatGPT Health did not recommend a hospital visit when medically necessary in more than half of cases

Study finds ChatGPT Health did not recommend a hospital visit when medically necessary in more than half of cases. www.theguardian.com/technology/2...

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