Thanks, interesting - both sound plausible!

Hi Ed, any thoughts on why the uplands in Scotland are becoming relatively less extreme compared to the median?

Communicating changes in the intensity of UK heatwaves Communicating how a global warming of ‘just’ 1°C affects people is challenging. The hottest UK summer days have warmed more than 3 times faster than the rate of global warming in the past century, ca...

Communicating changes in the intensity of UK heatwaves

Global warming of ‘just’ 1°C does not necessarily sound like a problem. But in the UK, the hottest summer days are warming much faster than typical summer days, changing our experience of heatwaves

rmets.onlinelibrary.wiley.com/doi/full/10....

Earthrise to Earthset: how the planet’s climate has changed since the photo that inspired the environmental movement The global climate has changed drastically over the course of the 58 years that separate these two photographs of planet Earth.

Nice article from Nick on the perspective offered by two Earth photos!

Earthrise to Earthset: how the planet’s climate has changed since the photo that inspired the environmental movement theconversation.com/earthrise-to...

Climate change: The science briefing that convinced Boris Johnson The prime minister has called the presentation

A scientific briefing by the Met Office notably changed Boris Johnson‘s thinking on climate change when PM. If he can change his thinking when presented with the facts, a lot of other people can www.bbc.co.uk/news/science...

GFS map of temperature anomalies over the contiguous USA for March 21, 2026.

We need to talk a bit about how utterly absurd the March heatwave was in the USA.

This heatwave would have been impossible without a boost from climate change, but even with climate change it remains a deeply unlikely event.

A thread looking at some of the numbers.

🧵

Multidecadal SST Variability Assessed as Primarily Forced in the Atlantic and Internal in the Pacific Using Rotated Low‐Frequency Component Analysis Rotated LFCA effectively separates forced and unforced variability Atlantic Multidecadal Variability is primarily forced The Pacific Decadal Oscillation exhibits some forced variability but is l...

The debate continues: Multidecadal variability in the Atlantic mostly forced, multidecadal variability in the Pacific mostly internal agupubs.onlinelibrary.wiley.com/doi/10.1029/...

The Many Possible Futures of Climate Models Kilometer-scale models, machine learning and model diversity

Wrote about the new approaches people are taking to building climate models: km-resolution, automated tuning, ML emulators…

Climate has benefited from having 10s of models to test and compare, now we have new dimensions of model diversity to learn from

notesonclimate.substack.com/p/the-many-p...

NMME forecasts of ONI initialized 2026-04-01. Forecasts are well above 0.5 except for CanESM5 who sags in the middle

Pick your fighter: ONI or RONI at nmme.earth.miami.edu/figures/inde...

A map of the UK showing maximum temperatures on Wednesday 8th April 2026. These are expected to be widely above average, particularly across England and Wales, with highs of widely 20-24 degrees Celsius and 26 degrees Celsius in the London area. Northwestern areas will be cooler with highs in Shetland and the northwest of Scotland of only 10 or 11 degrees Celsius respectively and 17 degrees Celsius in Northern Ireland.

A map of the UK showing how maximum temperatures will compare on Thursday to on Wednesday. Many places will see a drop in temperature of 5 to 10 degrees Celsius, but parts of eastern and southeastern England will be similar or slightly warmer than on Wednesday.

Wednesday will be very warm for early April, with potentially record breaking temperatures for this time of year 🌡️

For some, it may be the warmest spell this early in April since 2020.

But it will be brief. Temperatures will drop by up to 10 degrees Celsius by Thursday 📉

Storm Dave will bring widespread gusty winds later Saturday, continuing into the early part of Easter Sunday 🍃

Northern parts of the UK are most at risk, where very strong and potentially disruptive gusts may develop

Stay #WeatherAware ⚠️

A Private Company Wants to Block the Sun, Responsibly Stardust sold geoengineering to investors. Now it needs to sell it to the public.

What the heck kind of stupid headline is this in The Atlantic. It buys into Stardusts promotional blurbs about the supposedly benign nature of their solar geoangineering proposals. www.theatlantic.com/science/2026...

Apollo 11 goodwill messages - Wikipedia

"It is our earnest hope for mankind that while we gain the moon, we shall not lose the world."

Eric Williams, former Prime Minister of Trinidad and Tobago. One of the Apollo 11 goodwill messages.

en.wikipedia.org/wiki/Apollo_...

Climate scientists' open letter: Extracting North Sea fossil fuels will threaten lives and livelihoods Complete this form to have your name added to the Open letter. Please fill out this form if you consider yourself a climate scientist (broadly defined) and share with others in your professional netw...

📣 Climate scientists!

The UK is talking about North Sea oil & gas again. Obviously, that's a dumb idea if we want a liveable planet.

I've written an open letter to UK party leaders, here: docs.google.com/document/d/1...

To sign it, fill this out: forms.gle/mFcbhueTJusN...

Please share! 🙏

Screenshot of text that says: "Important Notice (3/24/2026): NOAA NWS/NCEP has terminated the NCEP/NCAR R1 reanalysis as of March 18th, 2026. NCEP/NCAR R1 has been used as the atmospheric forcing data in the PIOMAS reanalysis . We had not been aware of this change in service which was apparently formally announced Feb 13. 2026. This means that we will have to find alternatives and generate a replacement. It will take considerable effort and time to update data streams, re-calibrate the model and generate updated time series. We don’t yet have a good sense if that’s possible with available funds and if so, when we will be able to resume production of a new PIOMAS time series. While a replacement of the NCAR/NCEP R1 as the forcing product makes ultimate sense, we would have wished for a longer time period to facilitate the transition. We are sorry what this means to our many users. PIOMAS has been in production since March 2010 and we rarely missed updates by more than a couple of weeks (except for government shutdowns). This will be longer. Check back here for updates! "

I had a feeling this was going to happen. Sad news, especially given the poor state of sea ice after this winter.

Looks like we won't be getting any more data for Arctic sea-ice thickness and volume for a while from PIOMAS. See: psc.apl.uw.edu/research/pro...

Notable that the highest and lowest pressure days were within 6 days of each other? Usual spring weather? Rossby wave dynamics?

Cognitive science, science communications, computer science, and hands-on environmental research - find out about Jesse's placement at NCAS St Andrews.

This got me thinking - what is the record diurnal temperature swing in the UK? I have seen Altnaharra in winter 1995 suggested at around 29C from -27C to 2C, any larger swings? www.theweatheroutlook.com/twocommunity...

Even more extreme at Aboyne: -4.1C to 18.6C

Almost a 15C swing from today from 1.6C at 06.00 to 16.3C at 15.00 at Leuchars near St Andrews. Glorious sunshine out there!

Image: istheukhotrightnow.com

I guessed the QGPV equation, so kind of close!

Professor Sir Jim Skea, Chair of the Intergovernmental Panel on #Climate Change IPCC delivered the keynote lecture for #Sustainability Week at St Andrews, emphasising the need for international collaboration.

Read more 👇

https://ow.ly/aIOc50YwJKu

#EverToExcel

There goes my weekend 🤪 #rangerdailydiary

A fantastic day at Cambo House for our School's Postgraduate Research Away Day – a beautiful setting for science, sunshine, and smiles.

Excellent to see all our research students presenting their work through talks and posters, showcasing a great standard of diverse research.

Well done all! ⭐

East Sands beach, St Andrews, in the sunshine (which happens more often than you probably think!)

Chair in Earth Sciences position @uniofstandrews.bsky.social closing soon - Monday 23 March.

Very broad remit, so if you’d like to join our lovely school, and get to live in the super beautiful and friendly wee nation of Scotland, please apply!

www.st-andrews.ac.uk/earth-scienc...

⚒️🌊🧪

IPCC in a Changing Climate: great event yesterday hosted by @earthscista.bsky.social and featuring current IPCC Chair Jim Skea. I gave a talk highlighting major contributions of St Andrews science to the IPCC process @uniofstandrews.bsky.social @ipcc.bsky.social

Riesgo de colapso operativo en el Servicio Meteorológico Nacional por inminentes despidos El Centro Argentino de Meteorólogos manifiesta su profunda preocupación ante el anuncio de una inminente reducción de personal en el Servicio Meteorológico Nacional (SMN), que podría afectar a más del...

The Argentinian national Met service is on the brink of operational collapse (Use a translator for the article below if you cannot read Spanish).
How can that govt’ believe that dismantling their met service will be beneficial for Argentina ? This is insane 😡

www.cenamet.org.ar/riesgo-de-co...

Forecasting the Future With Yesterday's Climate: Temperature Bias in AI Weather and Climate Models AI weather and AI climate models produce cold-biased boreal winter land temperatures that resemble those from 15 to 20 years earlier The weather model cold bias is strongest for the hottest tempe...

'These findings underscore the challenge of training AI models exclusively on historical data and highlight the need to account for such biases when applying them to future climate prediction' agupubs.onlinelibrary.wiley.com/doi/10.1029/...

The images show how Lake Urmia in the north-west of the country – once the largest lake in the Middle East – has almost completely dried up since 2001 as water that feeds that lake has been diverted.

NEW – Q&A: How climate change and war threaten Iran’s water supplies | @ayeshatandon.carbonbrief.org @giulianaviglione.bsky.social @ceciliakeating.carbonbrief.org

Read here: buff.ly/rcjFJKy