Matthias Cuntz

Wenn der Ottomotor heute erfunden werden würde

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

425.36 parts per million (ppm) CO2 in air 08-Aug-2025
keelingcurve.ucsd.edu

NASA Planning for Unauthorized Shutdown of Carbon Monitoring Satellites - Eos Despite warnings that their actions are illegal, Duffy and other senior NASA officials have continued to secretly direct NASA employees to draw up plans to end at least two major satellites missions s...

NASA is making plans to shut down two Earth observing satellites that provide key data to climate scientists and farmers, despite lawmakers telling them it’s illegal to do it. Story by @astrokimcartier.bsky.social

eos.org/research-and...

Every Scientific Empire Comes to an End America’s run as the premier techno-superpower may be over.

Thanks everyone, it’s been fun being a scientist in the US. 👋

#Archives2025 👉En France, la baisse des émissions de gaz à effet de serre prévue en 2025 n’est que de 0,8 % selon le baromètre du Citepa. Un chiffre jugé alarmant par le climatologue Jean Jouzel, qui dénonce un « relâchement » général.

➡️ https://go.publicsenat.fr/Gy7

Preventing Woke AI in the Federal Government By the authority vested in me as President by the Constitution and the laws of the United States of America, it is hereby ordered: Section 1.  Purpose.

New Trump EO: "when ideological biases or social agendas are built into AI models, they can distort the quality and accuracy of the output"

...so henceforth the US government won't do business with you unless your LLM is built to echo our ideological bias and promote our social agenda.

Large and Increasing Biospheric Productivity of Northern Ecosystems The amplitude of the seasonal cycle of CO2 provides a constraint to changing land biosphere productivity in the northern hemisphere Plant productivity and its increase need to be larger than most...

We used the increasing amplitude of the seasonal cycle of CO2 to infer "Large and Increasing Biospheric Productivity of Northern Ecosystems":
doi.org/10.1029/2025...

One of the last projects started with Vanessa Haverd. It was a wonderful time.

We are looking for a PhD candidate who is eager to work in an interdisciplinary setting at the intersection of signal processing, fluid mechanics, and ecophysiology.
More info can be found here: jobs.inrae.fr/en/ot-26342

Turbulent transport extraction in time and frequency and the estimation of eddy fluxes at high resolution Abstract. We introduce a novel framework for estimating eddy fluxes using cross-scalogram smoothing, addressing key limitations of the standard eddy-covariance method. The standard approach suffers fr...

🌱 New publication 🌱

Excited to share a study led by @gbrldst.bsky.social, now out in AMT:
"Turbulent transport extraction in time and frequency and the estimation of eddy fluxes at high resolution"
w/ myself, @e-joetzjer.bsky.social & @mcuntz.bsky.social

📄 amt.copernicus.org/articles/18/...

(1/5)

🌍 Le climat change plus vite et les impacts s’intensifient. Le cadre d’action publique en France a pris un retard important. Il faut relancer l'action climatique pour atteindre la neutralité carbone en 2050.

On fait le point dans notre 7ème rapport annuel :

Habilitation (HDR) of Nicolas Martin. Very educational and full of energy as always. Well done! Congratulations!

If they close all these research labs, you can't just undo it four years later.

Decades of expertise and tons of specialized equipment will be scattered to the wind. Rebuilding would take ages.

But they alternate with excellence 😂

Kluger Klimaschutz lohnt sich. Für alle – sagt eine neue Studie Hier kommt die Antwort auf »Wer soll das alles bezahlen?«. Denn Klimaschutz könnte zu 13% mehr Wohlstand führen.

»Wer soll das alles bezahlen?« ist bis heute wohl eines der beliebtesten Gegenargumente, um Klimaschutzmaßnahmen zu verschleppen.
Wer heute noch an dieses Strohmann-Argument glaubt, sollte einen Blick in den neuen Bericht des Industrieländerverbandes OECD werfen.
perspective-daily.de/article/3771...

Show Your Stripes Visualising how the climate has changed for every country across the globe

Closest to where I live
showyourstripes.info/c/europe/lux...

Bloody hot this weekend …

„Ce n’est pas en cassant les outils de mesure que nous pourrons nous débarrasser des fièvres, des épidémies, des inégalités et des pollutions.“

Un moratoire sur l’éolien et le solaire adopté à l’Assemblée nationale par un vote conjoint de la droite et de l’extrême droite L’amendement approuvé lors de l’examen de la loi sur le futur énergétique du pays, qui fera l’objet d’un vote solennel mardi, a été qualifié de « catastrophe économique et industrielle » par le député...

Loi Duplomb, révélations PFAS, Cadmium...
Et maintenant ça. Le présent est déjà compliqué, mais que dire de l'avenir préparé par la Droite...
www.lemonde.fr/energies/art...

Responses of tropical forest trees to rising carbon dioxide - conifers versus angiosperms at James Cook University on FindAPhD.com PhD Project - Responses of tropical forest trees to rising carbon dioxide - conifers versus angiosperms at James Cook University, listed on FindAPhD.com

I have an opportunity for a new PhD student in tropical tree ecophysiology in my lab. Some more details at the link below. Please pass along!

www.findaphd.com/phds/project...

Infrared imaging shows heat levels in sun-exposed leaves of Alstonia scholaris from the Australian Wet Tropics. As climate change increases temperatures and the severity of heat waves, both natural ecosystems and agricultural plants are increasingly affected by heat. Examining heat responses at cellular, genetic, physiological, and ecosystem scales, this special issue explores how plants sense and respond to high temperatures.

As the world warms, plants in natural ecosystems and agricultural settings find ways to respond to the heat.

In a new special issue of Science, researchers examine how heat affects plants at multiple scales, from the molecular level to the biosphere. scim.ag/44cSw3Z

This is not the actual cover of Nature, just shown here for illustrative purposes. We did submit this figure for consideration for their cover. Print run in two weeks, we'll know by then if it gets used.

Out today in Nature, our paper on the drivers of the record 2023 summer heating of the North Atlantic. Temperatures warmed to record levels in just a few months. The impacts on climate & ecosystems were severe. A thread on how this work came about and what we found.👇👇🧵 www.nature.com/articles/s41...

Postdoctoral Research Fellow in terrestrial carbon cycle modelling (281332) | University of Oslo Job title: Postdoctoral Research Fellow in terrestrial carbon cycle modelling (281332), Employer: University of Oslo, Deadline: Friday, August 15, 2025

New #FATESmodel postdoc in Oslo! Come and join our team :) www.jobbnorge.no/en/available... Postdoctoral Research Fellow in terrestrial carbon cycle modelling (281332) | University of Oslo

And suddenly all problems seem far away :-)

Seeing Blatten buried again and again, from every angle...

Properly staggering! 😮😱

Rubio Reportedly Pauses New International Student Visa Interviews More than 1.1 million international students were enrolled at U.S. colleges and universities in the 2023-2024 school year.

The US Administration has indefinitely blocked *all* student visa applicants from getting a visa interview.

Worldwide, unconditional, no end date. All.

International students are crucial to the US university system, American innovation, and future US prosperity.

Because no one spends as much on science as the US does, destroying NIH, NSF, NOAA, NASA, EPA, USDA, USGS, etc. is leading to a brain drain, but it's not to other countries but rather from science. This senseless destruction of US science will hurt the US and the world for a very long time.

Devastating, again.

NSF Unidata Pause in Most Operations

This is a seismic gut punch to the weather enterprise.

It is impossible to overstate how important @unidata.bsky.social is in implementing many datasets/libraries (LDM, netCDF, THREDDS, metPy) we currently use in meteorological research & operations.

www.unidata.ucar.edu/blogs/news/e...

Research Software Engineer/Scientist | Nandita Basu We are looking for a Research Software Engineer/Scientist to work between Juliane (Julie) Mai and myself on watershed, water quality, wetlands and modeling, from the watershed to regional and global s...

We are looking for a Research Software Engineer/Scientist to work between @nanditabasu.bsky.social and myself on watershed, water quality, wetlands and modeling, from the watershed to regional and global scales. Please reach out and apply..

www.linkedin.com/posts/nandit...

Bar graph titled "Top 20 Countries by Research and Development Spending." The United States leads significantly in spending, followed by China, Japan, and Germany. Other countries include the United Kingdom, South Korea, France, and Australia, among others.

To see why destroying the US science enterprise is so detrimental to the world, we have to realize that the US spends more on research and development than any other country in the world (by far), and if we remove China and Japan, the US spends almost as much as ALL other countries combined.