The extreme weather we have now is not the new normal. It’s going to keep getting worse as long as we continue to burn fossil fuels.

Two very different views from the same place on top of Southampton’s medieval walls.

Framing the causes of hotter heatwaves The recent reductions in aerosol emissions have acted to unmask the warming that was already caused by past greenhouse gas emissions climatelabbook.substack.com/p/framing-th...

Folks skeptical of human-driven warming like to point to a period of somewhat less rapid warming from 1900-1945. In a new analysis at TCB, I dig into the different factors driving it, and find that humans, natural factors, and variability all played an important role: www.theclimatebrink....

Castle Hall was a two-storey stone-built house situated in the south-west corner of the Southampton Castle grounds. It was originally built in the late eleventh or early-to-mid twelfth century at the base of low natural cliff on the shoreline. 1/5

The global surface temperature record is one of the most iconic figures in climate science. We now have 12 different groups of researchers from the US, UK, EU, Japan, and China (among others) that have calculated it and found nearly identical results:

Women making Spitfire parts at the Supermarine works in Woolston, early 1939. This factory in Southampton, where the Spitfire was originally designed and first built, would be targeted by the Luftwaffe during two daylight air raids in September 1940. 1/2

The Arcades, part of Southampton’s fourteenth century defensive wall, photographed in the early 1900s.

One thing I've learned about paradoxes: often the answer to the riddle of "how can this one thing have such a contradictory set of features and effects?" is "it's not one thing, it's *two* things*." 1/

Announcement: the new version of CRU-TS (v4.10) running through to December 2025 is now released. This is the first update we've completed since the retirement of Ian 'Harry' Harris who maintained CRU-TS for many years. Andrew Friedman has now taken on this role. crudata.uea.ac.uk/cru/data/hrg/

June 20 is #ShowYourStripes Day! Use this graphic from @uniofreading.bsky.social & @ncas-uk.bsky.social to raise awareness of the rise in the Earth’s temperature. buff.ly/YUgbECW #GeoKky #Climate #ClimateChange #ShowYourStrips #ClimateSky

Oh, back from the future, here it is:

@microsoft.com - Does this screen serve any purpose whatsoever? I've yet to notice any change despite years of making different choices. I tick the box and say "Yes" purely as a Pavlovian reflex to Windows dialogues, but without any conscious expectation that, this time, things will be different.

Will you look at that @icarus-maynooth.bsky.social in the talk on the new era6 reanalysis given by Hans Hersbach of @copernicusecmwf.bsky.social

Trump regime takes aim at crucial ocean monitoring network. Ships will be dispatched this month to remove the more than 900 deep-sea instruments that comprise the network, one of the world’s most trusted sources of climate and oceanic data. www.scientificamerican.com/article/trum...

On this day in 1937, SS Habana arrived in Southampton from Bilbao. On board were around 3,840 Basque children who had been evacuated from the Spanish Civil War. They were taken to a volunteer-run camp at North Stoneham before being relocated to homes across the country.

NSF is closing down most of the Ocean Observatory oceanobservatories.org/2026/05/anno...

Modern Mooch visits Southampton's famously brutalist Wyndham Court estate ... modernmooch.com/2026/05/11/w...

The Royal Meteorological Society @rmets.org recently wrote a piece celebrating influential women in weather and climate. It’s well worth a read on any day, not just on International Women’s Day www.rmets.org/metmatters/t...

11/ OBSERVATIONS - Also published just this week: data from four mooring arrays along the western Atlantic shows a consistent decline in deep overturning transport across all latitudes over the past 20 years. The models predicted decline. We're now measuring it.

Apropos of nothing here’s a picture of global cooling (it’s that tiny little dip at the end).

Earth is warming as ther's more energy arriving than leaving driven by rising greenhouse gases & this imbalance is growing rather than shrinking as needed to limit #climate change. Our recent contributions to this in @ioppublishing.bsky.social: doi.org/10.1088/1748... doi.org/10.1088/1748...

ARCHER2, the UK national supercomputing service, has delivered an eightfold return on investment to the economy according to independent analysis. Operated by EPCC, it has enabled more than £4.2bn in benefits to the UK economy since launching in 2021: edin.ac/47JGMHB

The WMO State of the Global Climate 2025 report came out today. The report landing page with the report, press release, Story Map, extremes supplement, and an interactive extremes map. wmo.int/publication-... mini-thread

Earth’s climate swings increasingly out of balance wmo.int/news/media-c...

One good thing to out of this mess is that it once again highlights the urgent need to decarbonise: www.theguardian.com/environment/....

The extreme events of February 2026 highlight the growing impacts of #climate change and the pressing need for global action. 🌡️ Global temperatures were 1.49°C above pre-industrial levels, for the 5th warmest February More details: climate.copernicus.eu/press-releases

During February 2026, Europe yet again saw the growing impacts of climate change. 🌧️ A series of atmospheric rivers, together with a south-shifted jet stream led to heavy-to-extreme precipitation, triggering widespread flooding and landslides, particularly across Iberia and western France. 🌍🧪⚒️

The decision by @ukri.org to scrap the UK's flying atmospheric laboratory (FAAM) after spending >£40M on an upgrade & with zero consultation, is short sighted. FAAM has saved the UK economy more than it costs through responding to disasters. 400 scientists respond: www.thetimes.com/article/406e...

The Poet Laureate, Simon Armitage, achieved a longstanding ambition by becoming the latest @uniofreading.bsky.social weather observer after admitting he didn’t get on our @unirdg-met.bsky.social degree course while on BBC Radio 4’s PM programme! www.reading.ac.uk/news/2026/Un...

RMS Aquitania passing Southampton’s Royal Pier.

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.

From noise, all this Notes on a new global temperature reconstruction that uses a spatio-temporal probabilistic diffusion model generative deep learning thingummybob to fill gaps in the data. diagrammonkey.wordpress.com/2026/02/28/f...

Following the withdrawal of funding by UKRI-NERC, we can confirm that the FAAM Airborne Laboratory will cease operations at the end of this financial year. Our immediate priority is supporting affected staff and the wider UK atmospheric science community. ncas.ac.uk/closure-of-t...

How well can we quantify when 1.5 °C of global warming has been exceeded? Open review until 11 March essd.copernicus.org/preprints/es...

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...

A leading American research lab is slated to lose its critical supercomputing facility, according to a letter released by the National Science Foundation.https://cnn.it/3MoF7zU

Great to see this published. I am especially glad to see some very pronounced differences with other datasets with potential thoughts about why these exists! Different groups taking different approaches is one of the ways we know the big picture surface instrumental record trend is incredibly robust

Updated climate indicators graphics, now including 2025 ed-hawkins.github.io/climate-visu...

The paper describing the new DCENT-I dataset of monthly global surface temperature since 1850 is just published. rmets.onlinelibrary.wiley.com/doi/10.1002/...

Oriental Terrace was a narrow alley with seventeen terraced houses on its north side. It ran from Southampton High Street to Back of the Walls. Three Titanic crew members listed Oriental Terrace as their address in 1912. 1/10

In June 1872, six vessels from the U.S. Navy’s European Squadron sailed up Southampton Water to make an official visit to the town. Thirsty American sailors certainly enjoyed their visit to Southampton and its many pubs, although one of them did get stabbed by a group of Italians… 1/19

Why is no one talking about the IPBES Plenary in Manchester? The British Ecological Society explains www.britishecologicalsociety.org/content/a-be...

👇😔

New discussion paper just dropped that’s taken shall we say a little work to get this far … essd.copernicus.org/preprints/es... please be kind. Not on an at all sensitive topic in the slightest.

While the world sometimes seems metaphorically on fire right now, global warming is still progressing as well. In 2025, global warming delivered the 3rd warmest year since measurements began. A modest step down from 2024's records, but still well above 20th century norms. 🧪🧵

Animation showing the uncertainty in annual temperature anomalies for 2025 (actually the half range of the eight datasets that follow) and eight maps showing the temperature anomalies from eight different datasets. THREAD 1/n youtu.be/GKZCr4eboGg

Ben Santer, an outstanding scientist and historically significant figure in the development of understanding of climate change, is relocating to the UK. Very much looking forward to him visiting the @metoffice.gov.uk to talk about our common research interests.

First NY Times veteran @jswartz.bsky.social transitions to teach journalism at the University of Texas, now former Washington Post Pulitzer winning climate reporter @chriscmooney.bsky.social moves to teach at the other UT, the one on Rocky Top. Both grew up on Gulf Coast. cci.utk.edu/blog/2026/01...