@ppmv.bsky.social
Language, systems analysis, climate policy, CCS. Fletcher School/Fulbright d|e|f|i|中
Klaus Scharioth, remarkable diplomat and teacher. Worth reading: fletcher.tufts.edu/news-events/...
12.11.2025 20:57 — 👍 0 🔁 0 💬 1 📌 0
A Sharon Begley byline, almost 5 years after her death.
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
Useful answers in the comments!
07.11.2025 19:27 — 👍 10 🔁 6 💬 0 📌 0« The marker that distinguishes Gen Z is how pessimistic its members are, and how much they feel like life is beyond their control, according to Jean Twenge, a psychologist who analyzed data from national surveys of high school students and first-year college students in her book “Generations.” »
01.11.2025 14:43 — 👍 1 🔁 1 💬 0 📌 0
Using surveillance data from the CDC for notifiable infectious diseases, researchers in Science have made a comprehensive statistical analysis of the indirect impact of the COVID-19 pandemic on a range of infections occurring in the U.S. https://scim.ag/4nBv86S
31.10.2025 19:13 — 👍 30 🔁 3 💬 0 📌 1As I wrote earlier, the nice thing about large heat pumps is that it's a bit like the Olympics: there are lots of medals to be won in different categories. Is this the largest heat pump in the world? In this class (input: river, output: steam), perhaps yes.
31.10.2025 12:14 — 👍 5 🔁 2 💬 1 📌 1
Synthetic aperture radar satellite (Sentinel-1) images showing the front of Thwaites Glacier in 2014 and 2024, with grounding line positions overlaid as red lines
In this and following posts I summarise some key findings.
Firstly, the last remaining area of ice shelf in front of Thwaites Glacier, the Thwaites Eastern Ice Shelf, is nearing break-up.
doi.org/10.1017/jog....
Future changes in irrigation will reduce dry-heat stress (without reversing GHG trend) and will substantially amplify moist-heat stress (strengthening GHG trend).
New study @natcomms.nature.com led by Yi Yao @hydr-vub.bsky.social and @usyseth.bsky.social
www.nature.com/articles/s41...
Nein, wäre es nicht. Fossile Brennstoffe bringen neues Kohlenstoff in den globalen CO2-Kreislauf ein, während Holz beim Verrotten (!) oder Verbrennen nur das freisetzt, was es vorher aufgenommen hatte. Es ändert am globalen Kreislauf nichts. Biodiversität & andere Aspekte hier außen vor.
30.10.2025 08:48 — 👍 1 🔁 0 💬 1 📌 0“Such moderate thresholds for permafrost absence highlight the climate sensitivity of North Greenland.”
30.10.2025 08:04 — 👍 1 🔁 0 💬 0 📌 0“[M]ultiple episodes of permafrost absence between 10 and 5 Ma, suggesting mean annual air temperatures 14 °C higher than present coinciding with atmospheric CO2 concentrations above 310 ppm and local sea surface temperature anomalies >2 °C higher than present.” - We will exceed 450 ppm in the 2030s
30.10.2025 08:04 — 👍 3 🔁 1 💬 1 📌 1
Phylogeography of rhinos
Epiaceratherium itjilik in the Arctic settings. Artwork by Julius T. Csotonyi.
Wow, this is crazy. Direct megafaunal connections between Europe and North America existed up to the Miocene! Imagine island hopping and strait-crossing rhinos in the Arctic:
🧪 ⚒️ #Paleobio #EvoBio #Geology
www.nature.com/articles/s41...
Who here works in carbon capture and storage (CCS), utilization (CCU) or emissions trading? I may be more involved going forward and will be curious to hear about current technologies and people’s ideas. Merci all!
26.10.2025 14:29 — 👍 2 🔁 2 💬 0 📌 086 % (!) der Gasnetzbetreiber schreiben ihre Gasnetze für 2026 verkürzt ab. Stillgelegt werden kann danach ab 2035. 2045 soll es kein Erdgasnetz mehr geben. Parallel verteuern immer knappere Zertifikate Erdgas.
Insofern, Leute, seid vorsichtig: Hände weg von neuen Gasheizungen.
From the series ‘English loanwords in contemporary Mandarin’: 嗨 hāi, < ‘high’, ‘in high spirits,’ ‘exhilarated’… can also be used as a verb: 去嗨, ‘go have fun’, 嗨起來 etc. 😁
25.10.2025 13:12 — 👍 6 🔁 1 💬 0 📌 1In which they don't discuss why they called it "carbon emissions" in the title when the report they're covering is actually about the amount of carbon in the atmosphere.
Have to assume they think these are the same, but they're not. Such is our collective misuse of the word "emissions".
NOAA did not post a CO2 average for September, 2025. Based on all of the available data, CO2 averaged 424.41 ppm for Sept., 2025, a gain of 2.38 ppm from Sept., 2024.
The mean rate of CO2 growth (ppm growth per 3 years) is near an all-time high.
gml.noaa.gov/webdata/ccgg...
Graph showing: Weekly atmospheric CO2 at Mauna Loa, in the style of Hokusai.
NOAA data show Mauna Loa was about to be deluged, but perhaps the US government shutdown has saved it just in time?
robbieandrew.github.io/ppm/
Graph showing: Monthly global air passengers
One of the most dramatic "blips" at a global level, ever.
robbieandrew.github.io/internationa...
It can not be exaggerated just how wild the climate of the Pleistocene was in which we evolved. All of recorded history is in pixel at the very top of the very last zigzag, all the way to the right of this graph. From a new paper on sea level over past 4.5 million yrs www.science.org/doi/10.1126/...
17.10.2025 16:23 — 👍 44 🔁 12 💬 3 📌 2
Long Covid Is Real — And It’s Changing an Entire Generation
Hundreds of thousands of kids in America are struggling with an illness that many doctors and schools refuse to recognize.e
Feature: www.rollingstone.com/culture/cult...
German defence minister Pistorius has announced that Germany will spend 10 billion € over the next years on drones “of all kinds”.
Details so far not available 🤷♀️
www.sueddeutsche.de/politik/pist...
Global deforestation hasn’t slowed in any significant way in the four years since 127 countries pledged to halt and reverse forest loss and degradation by 2030.
The newly published 2025 Forest Declaration Assessment shows that nations are 63% off track from meeting their zero-deforestation target.
Interesting new report by the German Environment Agency on tourism & long-distance travel, showing (among other things) that the distance travelled by plane was over the pre-COVID peak in 2023 already umweltbundesamt.de/publikatione...
15.10.2025 14:53 — 👍 9 🔁 4 💬 1 📌 0
First light images from Clouds and the Earth’s Radiant Energy System (CERES) Flight Model 1 and 2. CREDIT: NASA
Earth’s northern and southern hemispheres are darkening, according to 24 years of satellite data. The northern hemisphere is darkening faster than the southern hemisphere, an asymmetry with implications for future climate. In PNAS: https://ow.ly/ktjF50XaACn
13.10.2025 17:30 — 👍 2 🔁 2 💬 0 📌 0
The natural weathering of ALL THE ROCKS in the world removes almost 1 billion tonnes of CO₂ from the atmosphere every year. Enhanced rock weathering is an attempt to use a minuscule fraction of ALL THE ROCKS to remove many times more CO₂.
03.10.2025 09:57 — 👍 243 🔁 51 💬 14 📌 13
Verwaltungsgericht Berlin: Schmerzgriffe gegen Klimaaktivist rechtswidrig.
»Der Einsatz sei nicht erforderlich gewesen, weil die Polizeikräfte den Kläger von der Fahrbahn hätten wegtragen können.«
Not a helpful analogy IMHO. “Unmasking” of warming that had already been “in the pipeline” or committed is a far more accurate description. CO2 residence time in the atmosphere is multi-millennia vs. weeks to months for aerosols. It’s never been “less effective,” just not as directly visible
10.10.2025 18:32 — 👍 5 🔁 0 💬 0 📌 0“The idea of sharing drug-laced blood is so unthinkably dangerous that for years, experts have questioned how common it is.”
10.10.2025 16:27 — 👍 6 🔁 1 💬 0 📌 0Der Anstieg der Covid-Zahlen (auch in den Krankenhäusern) geht jetzt sehr schnell. Einer von 100 ist mit SARS-2 infiziert.
Wer sich in diesem Jahr noch nicht hat impfen lassen, sollte das jetzt so bald wie möglich nachholen.
Deshalb ausnahmsweise eine Bitte:
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