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

I think a valid use of AI might be ensuring the people I have sent the document to, in my own organisation, asking them to read the document, have permission to read the document.

When it comes to climate change and net zero, it’s always wild to me that naked disinformation and climate denial works so well.

In our new paper in GMD @egu.eu by @seppelampe.bsky.social, we present BuRNN v1.0: an open-access, data-driven fire model. BuRNN largely outperforms current-generation process-based fire model across a range of metrics model: github.com/VUB-HYDR/BuRNN paper: gmd.copernicus.org/articles/19/...

It's official 🎉 Visualising Climate 2026 is here! visualisingclimate.com First international conference of its kind, it'll bring together artists, scientists, journalists all moved by the same desire to better communicate our changing climate 🌍 🗓️ Join us in Bologna, Nov 4-6 #dataviz #climatecrisis

TikTok videos with *certain content* are glitching across multiple countries overnight, after the change in ownership of the platform in the US.

Very bad news for all other road users in the UK, especially those on foot and on bikes.

This rain can do one tbh.

Your regular reminder that when folks say "its cold outside where I live, what happened to global warming?" that the world is big, and weather still exists.

New preprint in Earth System Dynamics: When will the northern high latitudes become a net carbon source? We evaluate using policy relevant SSP scenarios including overshoot, explicitly representing permafrost🌳❄️🔥🏔️ ➡️ doi.org/10.5194/egus... @njsteinert.bsky.social @mathisoncamilla.bsky.social

Australia’s worst heatwave since black summer made five times more likely by #climatecrisis, @wwattribution.bsky.social analysis finds - Extreme heat ‘is getting worse and there’s ultimately a limit to what we can physically cope with’ scientist says www.theguardian.com/australia-ne...

While Australian heatwaves were some of the very first extreme events attributed to climate change, people still underestimate how much worse they got - killing more people than all other natural hazards combined. New @wwattribution.bsky.social study. www.worldweatherattribution.org/climate-chan...

Carlo Buontempo, Director of the Copernicus Climate Change Service (C3S) @ECMWF emphasises how the global average temperature exceeded 1.5°C over a three-year period (2023–2025) – the first time in the #ERA5 record – bringing us closer to the Paris Agreement threshold. @ecmwf.int ⬇️

Peak shaving.

We need your voice. RMetS, with the Met Office, has launched the first State of the UK Weather & Climate Sector survey. If you work or study in weather or climate, your insight matters. www.surveymonkey.com/r/BYKG9QJ Please share – a strong sector needs a strong evidence base.

176 tiny maps (1850-2025) Maps of temperature anomalies for each year. The progression to warmer, redder colours is evident over virtually the entire planet. This 'small multiples' #dataviz approach is effective to show that nowhere is escaping from the warming due to us burning fossil fuels.

2025 global climate highlights are out: 🌡️ 2025 was 3rd warmest year on record, 1.47ºC above the preindustrial level 📈 2023-2025 is the first three year period above 1.5ºC (according to ERA5) 🌍 The last 11 years have been the warmest 11 years on record See: climate.copernicus.eu/global-clima... ⚒️🧪🌊

It's a myth that Net Zero will cost us. What will *really* cost us is climate heating. Heatwaves cost lives, floods and storms cost millions in property damage, wildfires and droughts cost our environment. Cost of climate inaction >> cost of action. Acting now = an investment in the future.

I think over the coming years, it will be important to state true and important things regularly. Climate change is real, it’s important and it’s caused by human activity. Most of its impacts on humans will be negative. It can be tackled by us too.

Lord knows we need some good news.

NEW: Coal-fired power generation fell in both China and India in 2025, for the first time since 1973. The drop came after record clean energy additions in both countries, and was the first time that clean energy was a major driver of falling coal power use.

the @australia.theguardian.com published an oped by me today. This heatwave is bad. The bushfires it is enabling are also bad. Climate scientists & meteorologists are incredibly concerned about the next 48 hours. And this is just a taste of what's to come. www.theguardian.com/commentisfre...

⚠️⚠️🔴 Red weather warning issued 🔴⚠️⚠️ Wind across the Isles of Scilly and parts of Cornwall Thursday 16:00 – 23:00 Latest info 👉 bit.ly/WxWarning Stay #WeatherAware ⚠️

This is forecast to result in storm surges ~1 metre on the English Channel and Bristol Channel. Fortunately it is not a spring tide, but the total water levels will be fairly high. There will also be large waves. Please follow local warnings and stay safe.

The USA has pulled out of the UNFCCC. www.theguardian.com/us-news/2026...

There is simply too much news.

Although its very cold at the moment in the UK, 2025 was both the warmest (with a mean temperature of 10.09°C) and sunniest (1648.5 hours) on record. Here is a climate and weather #dataviz summary for the last year. #climatechange #globalwarming.

It's the most magical time of the year — when estimates of last year's global average temperature anomaly come out. Time to dust off my "last year was hot" auto-response.

“it is clear from our weather observations and climate models that human-induced global warming is impacting the UK’s climate” "Since the start of the 21st Century, a new record has been set for UK annual mean temperature no less than six times – in 2002, 2003, 2006, 2014, 2022 and now 2025"

Oh, right. Of course.

Even after the news last week, we are still doing great research here at NCAR. My group has released a new paper, led by John Schreck, on arxiv about an efficient method for generating calibrated AI weather ensembles with reproducible scale specific perturbations. arxiv.org/abs/2512.18815

Great graphics in this Guardian story on climate impacts www.theguardian.com/environment/...

Yes, your chocolate orange IS smaller - and it's because impacts driven by climate change, at home and around the world, are driving up the prices of ingredients: cocoa, sugar and milk in particular. www.theguardian.com/lifeandstyle...

I know many of you who follow me don't work in climate science, but this is the biggest story in climate right now. Breaking up NCAR makes us all less safe and is another act of self-harm that will take decades to recover from.

If you’re driving fast at night down an unknown road, turning the headlights off is a really bad idea.

Closing this world-leading climate research centre would be a disaster for the science of climate and our understanding of climate change - which gets more important to everyone, every day. I spent a formative couple of weeks there in 2013, it was welcoming, open, classy, excellent and beautiful.

Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.

The new GloSAT temperature dataset extends our observational estimates of global temperature change back to 1781 Blog: climatelabbook.substack.com/p/new-estima... Paper by Morice et al.: essd.copernicus.org/articles/17/...

America, I’m so sorry you lost Rob Reiner in such a terrible way. What a prince of a man. What a joyous legacy.

i have said this before but if you are actually interested in influencing people beyond a narrow circle of too-online journalists you will be making direct to camera videos on tiktok, instagram and youtube. if you primarily post on text-based social media then you're just dicking around.

It appears that the U.S. Environmental Protection Agency (EPA) has, within the past week, scrubbed a large amount of climate change content from its official website, as well as *removed human-caused warming* from the discussion on its "causes of climate change" page.

Watching my organisation’s “awards for excellence” and remembering that year that “colleague of the year” noms had to go up against a guy that rescued 12 kids from a cave in Thailand lol.

This is absolutely awful. This was one of the best resources for climate indicators data, and my go-to share for help answering public questions. Luckily I captured some of them on my new U.S. climate page a few months ago: zacklabe.com/united-state...

The Google Gemini3 LLM is remarkably excellent at reading weather observations from handwritten logbooks. Example of recovering hourly pressure observations taken in Oxford in December 1883 and January 1884, compared to human-keyed data from relatively nearby sites. Climate data rescue solved?

Why yes, I have spent time this afternoon asking chatGPT to generate images of a cartoon cow farting and burping.

Or for those unfamiliar with units of Denmark-metres, the GRACE satellites have measured that since 2002, Greenland has lost the equivalent of a block of ice 52 km x 100 km x 1 km thick. Approximately 0.25 Wales-km, or 0.6 Australia-metres.

Santa lists are just how we get kids used to the Grind mindset. Have you been good enough? No?! No presents for you kiddo.

Just trying to understand these two news items published within 5 days of each other

There’s an amazing TikTok (wannabe) influencer who is consistently claiming that fossil fuels saved the whales and are vital for improving the lives of women in low-income countries. Comms judo.

Come and apply to work on a *genuinely and unambiguously good* application of AI.