Tim Osborn

Modeled and Observed Stratospheric Temperature Changes: Implications for Fingerprint Studies Human fingerprints, marked by tropospheric warming and stratospheric cooling, are evident in Earth's changing atmospheric thermal structure A claim to the contrary in a recent report of the US De...

One topic covered in the interview is the US DoE's flawed climate working group report of 2025. Yesterday Ben and colleagues published this article, demonstrating the DoE's report was factually incorrect in its claims about stratospheric temperatures agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Prof Ben Santer: Trump administration is ‘embracing ignorance’ on climate science - Carbon Brief In an interview with Carbon Brief, Santer says the Trump administration is “engaged in a systematic attempt to dismantle climate science”

Well worth watching this interview from January of UEA's Ben Santer by @rtmcswee.carbonbrief.org for @carbonbrief.org. Heartfelt and moving, while also informative about Ben's views on climate action and climate science in the current geopolitical circumstances.
www.carbonbrief.org/prof-ben-san...

DOE climate report 'demonstrably incorrect', say scientists in new analysis A leading climate scientist has sought to set the record straight over "demonstrably incorrect" claims made in a major U.S. government report that misrepresented his work and downplayed the role of hu...

DOE climate report 'demonstrably incorrect', say scientists in new analysis

phys.org/news/2026-02...

Regarding a recent community science paper on 1.5°C of #globalwarming (doi.org/10.5194/essd...), the graph I like the most shows #seaice extent anomalies for different datasets and reconstructions. The most striking feature is HadISST2 disagreement with Antarctic reconstructions.

For more problems with the DoE's report see this comprehensive review put together by @andrewdessler.com and colleagues: doi.org/10.22541/ess...

Figure 1 from Santer et al. (2026) showing agreement between model predictions and observations of global temperature change across multiple stratospheric and tropospheric layers.

The DoE report was flawed because it only considered the lower stratosphere, and even there it made false claims about model-obs disagreement. Ben's figure shows agreement between model predictions and observations of global temperature change across multiple stratospheric and tropospheric layers.

Modeled and Observed Stratospheric Temperature Changes: Implications for Fingerprint Studies Human fingerprints, marked by tropospheric warming and stratospheric cooling, are evident in Earth's changing atmospheric thermal structure A claim to the contrary in a recent report of the US De...

One topic covered in the interview is the US DoE's flawed climate working group report of 2025. Yesterday Ben and colleagues published this article, demonstrating the DoE's report was factually incorrect in its claims about stratospheric temperatures agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Prof Ben Santer: Trump administration is ‘embracing ignorance’ on climate science - Carbon Brief In an interview with Carbon Brief, Santer says the Trump administration is “engaged in a systematic attempt to dismantle climate science”

Well worth watching this interview from January of UEA's Ben Santer by @rtmcswee.carbonbrief.org for @carbonbrief.org. Heartfelt and moving, while also informative about Ben's views on climate action and climate science in the current geopolitical circumstances.
www.carbonbrief.org/prof-ben-san...

This is a really informative post and I encourage readers to particularly read the worked example that Zeke provides. Seeing things “in action” always helps me understand it

The AI-Augmented Scientist The promise and pitfalls of using AI tools to boost my capabilities as a scientist

As a rare climate scientist working in Silicon Valley, I've been drinking from the AI firehose a lot more than my peers. I thought it would be helpful to lay out my experiences of both the promise and pitfalls of using AI to accelerate scientific research:

Joint probabilistic estimates of temperature and precipitation from tree ring-based reconstructions of the last millennium Abstract. An understanding of Earth's past climate can help put current and future changes into historical context. Widely used tree ring-based drought atlases generally target the Palmer Drought Seve...

This is very cool - @drkatemarvel.bsky.social et al. 'Joint probabilistic estimates of temperature and precipitation from tree ring-based reconstructions of the last millennium' ascmo.copernicus.org/articles/12/...

No paywall for this vital @financialtimes.com coverage of the changing face of war in #putinswar on Ukraine and beyond. t.co/gT2IbR9HRg

A reminder to those at #OSM26, there's an oceanography feed where your stuff could be seen by thousands, even if you have only one follower. Join, pin, like, post, enjoy.

I am reliably informed that “virtual attendance” to OSM26 DOES NOT INCLUDE WATCHING THE TALKS, JUST DOWNLOADING THE SLIDES, and I would like to understand the decision making process for that. #agu #OSM26

Subscribe to Volts A newsletter, podcast, & community focused on the technology, politics, and policy of decarbonization. In your inbox once or twice a week. Click to read Volts, a Substack publication with tens of thou...

It has occurred to me that the optimal level of marketing for my podcast Volts, upon which my family's entire income depends, might be higher than its current level of zero.

On stealth corrections to the academic record.

That is, changes made by the publisher after publication, with no notice given.

Guess what? MDPI are caught moving articles out of special issues post.

Read more in this blog

deevybee.blogspot.com/2026/02/gues...

Come work with us! 🧪🌐🧑‍💻🌿🐸❄️

I am hireing a #postdoc in Climate Change Ecology to work on Ecological Synthesis and support the upcoming #IPCC report as a Chapter Scientist (CH14: terrestrial, freshwater and cryopspheric biodiversity, ecosystems, and services. #IPCC #AR7
@ipcc.bsky.social

Would be interesting to see similar analysis over Finland's or Fennoscandian domain. The lack of precipitation has been likewise historic here.

I just did the dumbest thing of my entire career to prove a much more serious point.

I tricked ChatGPT and Google, and made them tell other users I’m a competitive hot-dog-eating world champion

People are using this trick on a massive scale to make AI tell you lies. I’ll explain how I did it

Thanks for pointing this out, also @volts.wtf. And the list goes on, incl why do we normalise adaptation since many strategies are often associated with loss of livelihood, social capital and identity > rarely brought up. The global debates are just centred on funding, obscuring other key issues.

How has your country's climate changed over the past century? Find out here:

Thanks!

There is an info button ℹ️ on the top of the timeseries graph which gives some info in a pop up window. But you’re right that it doesn’t explain all the acronyms - we can add more in the next version

A screenshot of the CRU-TS national time series dashboard

New dashboard to visualise CRU-TS country averages (i.e. CRU-CY) for temperature, precipitation, humidity and drought area (using our scPDSI indicator).

(It takes a little while to first load, but is quite responsive after that)

climate.uea.co/CRU-Timeseri...

Perhaps another one for you (unless you want just global-mean focussed ones?)

bsky.app/profile/timo...

Oxygen Isotopes in Tree Rings Track Neotropical Climate Dynamics Tree-ring δ18O from Abies guatemalensis in Central America captures interannual variations in boreal summer rainfall Lighter δ18O years are associated with a weakening of the Caribbean Low-Level ...

A new paper by @anaigmendez.bsky.social vin Geophysical Research Letters shows that the oxygen isotope ratio of the annual rings of tropical conifers in Central America records rainfall amount and tracks large-scale tropical atmosphere ocean dynamics! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Lecturer / Associate Professor in Environmental Assessment and Management (ATS1342) in University of East Anglia | UEA View details and apply for this Lecturer / Associate Professor in Environmental Assessment and Management (ATS1342) vacancy in University of East Anglia. Faculty of Science School of Environmental...

New post: Lecturer / Associate Professor in Environmental Assessment and Management @ueaenv.bsky.social @uniofeastanglia.bsky.social

Closing date: 20 March 2026

vacancies.uea.ac.uk/vacancies/20...

A small bird with a distinctive crest perched on a branch. The background is filled with vibrant pink blossoms, and some green leaves are visible.

Dr Marius Somveille from @ueaenv.bsky.social, has been the lead author on a study that has highlighted how mountain birds adapt to changes in climate.

Read more on our website: https://bit.ly/4tqKuPI

#ResearchMatters #Academia #NewStudy

Is it ALRollers? www.alrollers.co.uk

This Climate Data Dashboard provides timeseries for individual countries and other territories, calculated using version 4.09 of the CRU-TS and CRU-CY datasets. We remain neutral with regard to any jurisdictional claims. These datasets have been created by the Climatic Research Unit (CRU) and the National Centre for Atmospheric Science (NCAS), both at the University of East Anglia (UEA). You are encouraged to freely use and share these graphs and data if you acknowledge NCAS and CRU-UEA as the creator. If it is appropriate to include a scientific reference, then please also cite "Harris et al. (2020) Scientific Data".

You can zoom into a sub period, download the data shown in the time series graph, download the image of the graph.

And it is all CC BY, meaning you can use, share and adapt - just acknowledge NCAS (@ncas-uk.bsky.social) and CRU-UEA (@climateuea.bsky.social) as the creators

@ueaenv.bsky.social

Chile CRU-TS / CRU-CY annual drought area (%)

Chile CRU-TS / CRU-CY seasonal precipitation (mm/month)

Chile CRU-TS / CRU-CY seasonal temperature (degC)

Example: Chile. Seasonal temperatures, March-April-May and June-July-August precipitation and annual drought area