Not be Alarmist(TM), but this seems pretty bad!

Can AI weather models predict out-of-distribution gray swan extremes? We report @pnas.org that the answer is NO for global gray swans, YES for regional ones: AI models can't extrapolate from weaker events but can learn from similar events in other regions during training! doi.org/10.1073/pnas...

Exciting climate news from UEA @uniofeastanglia.bsky.social: Vacancy: Professor of Climate & Environment. UEA joins the Met Office Academic Partnership Andy Jordan (Tyndall) appointed to UK Climate Change Committee Bill Collins (Berkeley) is moving to UEA as Professor of AI for Climate Science

AGU is now accepting applications for Editors-in-Chief across six publications, with terms starting Jan 1, 2027. These roles help shape editorial standards, research quality, and peer review in Earth & space science. Apply by May 1, 2026. buff.ly/8Mxy8vq

Okay, who knows what happened to relative humidity in 2025?

BIG, EXCITING NEWS! Dr. Kate Marvel @drkatemarvel.bsky.social -- world-leading climate scientist and author -- is coming to Project Drawdown after leaving NASA. She will be a Senior Scientist, leading an exciting new initiative on "Emergency Brake" climate solutions. drawdown.org/news/world-r...

My resignation letter

Thanks to @drkatemarvel.bsky.social for speaking with me this morning about why she decided to leave NASA, the work she was doing, her concerns about federal science and also what gives her hope. 🧪

Will be interesting to see if Maureen Flavin Sweeney is included in the narrative, since she provided the first observations that led to the delay of D-Day en.wikipedia.org/wiki/Maureen...

Amid the historic and ongoing record heatwave (which will continue for at least another week in this region), Colorado River Basin snowpack has unfortunately taken an unprecedented March nosedive. Given the pre-existing water crisis, this is a highly alarming trajectory.

Applications are now open for the Agnese Haury Visiting Scholar & Trainee Fellowships at the Laboratory of Tree-Ring Research - more information here: ltrr.arizona.edu/fellowships

We're hiring? *checks notes* WE'RE HIRING! Check out these opportunies to work at NCEI. I'm a "USA Jobs Survivor" so happy to impart wisdom (and rants) if you want them www.usajobs.gov/job/861144500 AND www.usajobs.gov/job/861144700

Excited to announce Groundsource - an open-source dataset of historic flood events! This has easily been one of the coolest projects I've worked on recently! Thread 🧵 for details and all relevant links. 1/n

As a Middle Aged Dad(tm) who is also a climate scientist, this feels very narrow casted for me (a movie about weather forecasts and the D-Day invasion) www.youtube.com/watch?v=zdM4...

Are you a young academic working on climate and feel ready for a move? We are recruiting two Assistant/Associate Professors @granthamicl.bsky.social at Imperial College London @imperialcollegeldn.bsky.social (1/6)

New paper where we assess how reliable estimates of aboveground biomass from tree rings are compared to permanent monitoring plots in forests where management interventions affect dynamics and growth #ForestEcology #ForestManagement #Management doi.org/10.1016/j.fo...

Seeing this ENSO forecast shared a bit. Let me put my ENSO hat on for a sec to say a couple things. 1. This uses a 1981-2010 climo which will boost the anomaly numbers. 2. This doesn't use the Relative Oceanic Nino index (RONI), which would slash these anomaly numbers by, my guess, 0.5C 1/2

Lecturer (NON-tenure) position at the Climate School at Columbia University: academic.careers.columbia.edu#!/178984

Postdoc Fellowship opportunity! UW Program on Climate Change has a new for a Postdoctoral Scholar program for fellows to develop and conduct novel climate science research that benefits from collaborations at UW. Apply by April 15th! pcc.uw.edu/research/fun...

🚨We're excited to announce our initial launch of the Bias-Corrected and Downscaled Massive Ensemble (BCD-ME), the largest collection of analysis-ready future temperature data out there, ideal for getting a better sense of what's driving the _climate_ spread in climate impact projections! 🧵 below:

"2021–2023: Extreme Years of Global Drought in the Context of Long- and Short-Term Hydroclimate Trends" New work, led by LDEO PhD student Aandishah Samara (w/ JE Smerdon, R Seager): journals.ametsoc.org/view/journal...

“While the East was cold, for locations with long term records like NYC, DC, Philly & Boston, winter 2025-26 only ranked in the range of a top 25-50 coldest — it just seemed particularly brutal because of global warming and the trend toward milder winters in recent decades.” — @wxmanms1.bsky.social

'After 30 years, is the West's drought still a drought?' - Arizona Republic's long piece on aridification and its consequences for Arizona, featuring the LTRR's Dr. Margaret Evans and her research on rising temperatures and changing forest dynamics www.azcentral.com/story/news/l...

Registration now open for the 11th UK National Climate Dynamics Workshop. 22-24 June at University of Reading. Abstract deadline is 30 April. www.rmets.org/event/11th-n...

A meme born from my slow descent into madness when analyzing the North America Drought Atlas

Arizona officials getting pretty worried the federal government will wipe out some or all of Phoenix's water supply in the absence of a multistate Colorado River Basin deal: www.azcentral.com/story/news/l...

Two job opportunities with the @ipcc.bsky.social WG1 TSU: Science Officer: www.ipcc.ch/2026/02/17/s... AI Officer (deadline passed but will consider applications until the end of the week): www.ipcc.ch/2026/01/12/a...

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...

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

Here is a summary of an entire export report documenting how greenhouse gas emissions threaten public health (among other things) www.ipcc.ch/report/ar6/w...

Okay, anyone have separate shapefiles for the Upper and Lower Colorado River basins? Seems impossible to find online.

We’ve got a new dataset that’s hi-res and research ready: MESACLIP. Researchers used two supercomputers to create the MESACLIP dataset which features the Earth system in unprecedented detail, including snow cover and sea surface temperatures. Learn more: https://bit.ly/4rBK9bg

Job: Dean of the College of the Environment at the University of Washington www.washington.edu/provost/lead...

A Dry, Warm January Leaves the West With the Worst Snowpack in Decades www.drought.gov/drought-stat...

Given the latest NOAA CBRFC inflow forecast for Lake Powell, I dusted off this plot from my Twitter days and updated it. The Feb 1st outlook for Colorado River flows hasn't been this poor in >35 years. Even if wetter weather ahead, bottom-10 outcome likely. h/t @glenwoodrek.bsky.social

We're hiring a full-time technician to support radiocarbon analyses. If you have some experience with analytical instruments and background in chemistry, earth sciences, archaeology, and/or ecology, this could be the job for you! arizona.csod.com/ux/ats/caree...

We are advertising for a Lecturer in Physical Oceanography, closing date 31 March. If you have research interests in the shelf seas, estuarine and coastal oceans then this could be for you! And you could do research using UEA's fleet of ocean gliders vacancies.uea.ac.uk/vacancies/20...

LOOKING FOR A NEW ACADEMIC OPPORTUNITY? Regius Professorship in Meteorology & Climate Science - a role awarded to the University of Reading by Queen Elizabeth II Seeking an exceptional academic leader who will shape the future of meteorology & climate science. jobs.reading.ac.uk/Job/JobDetai...

You use data from ESA instead of NASA because you have more confidence in it. I use data from ESA instead of NASA because NASA has the worst data sharing infrastruture on the planet. We are not the same.

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.

If you're going to JpGU, consider submitting to JpGU session A-HW37: Global Drought Stress from Headwaters to Lowlands (24-29 May, Chiba Japan)! www.jpgu.org/meeting_e202... www.jpgu.org/meeting_e202...

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...

Each summer the JPL Center for Climate Sciences brings in ~25 grad students & postdocs to engage with premier climate scientists, focusing on "Using Satellite Observations to Advance Climate Models." Applications for July 2026 now being accepted. climatesciences.jpl.nasa.gov/events/summe...

Come help us document, predict, and manage our planetary insult as a PROF Postdoctoral Fellow in the Climate Modeling & Impacts Group at Dartmouth! App review begins 2/15/26, here: apply.interfolio.com/178090 Reach out to me with questions and colleagues, please share this widely.

Most 2025 global temperatures are now out (degrees C above 1850-1900 baseline) 1.41 HadCRUT5 1.44 Berkeley 1.46 JRA-3Q 1.47 Copernicus 1.53 DCENT-I NOAA and NASA GISS values will be public at 2pm UK time and but based on already public Jan-Nov data they will likely be between 1.3 and 1.4 degC.

Paleolatitude.org 3.0 is online! At what latitude was your backyard in the time of the dinosaurs? The answer is a simple mouse click away, and now also if your backyard lies one of the world's big mountain ranges!

The deadline for graduate student applications for paleoCAMP 2026 (Paleoclimate Training in Climate Archives, Models, and Proxies) summer school is this Friday, January 9th! paleoCAMP is completely free for all students selected to attend paleoclimate.camp/apply

Great essay by @sarahinscience.bsky.social on the current extreme heat in Eastern Australia: www.theguardian.com/commentisfre...

Updated time series of daily year-round North American weather regimes for 1 Jan 1979 to 31 Dec 2025 just published on Zenodo: doi.org/10.5281/zeno... I plan to keep this dataset updated annually. Happy regime-ing!

Nominations for @agu.org AGU awards are now being accepted! Please nominate a deserving colleague. Many qualified people do not win awards because no one nominates them. Also, for many AGU awards, you can self-nominate. www.agu.org/honors