In a new Nature study, we show that extreme global climate outcomes may occur even under moderate 2°C warming for several sectors. The findings reinforce the urgency of limiting warming well below 2°C. Together with @erichfischer.bsky.social @janasillmann.bsky.social @zscheischlerjak.bsky.social

Climate has almost disappeared from our conversation. But it remains the most pressing challenge of our times. Last week the WMO said the planet is “more out of balance than at any time in observed history.” Energy security and climate security are not competing priorities.

Geat points made by Sean Raymond here. Great to see how our work fits in here. Wild Orbits Prime Planets for Life - nautil.us/wild-orbits-...

ICYMI, some good news from @science.org: NASA has revived its next-generation satellite missions, which will study changing clouds and rainfall and use hyperspectral imagery to chart ecosystems, critical minerals, and greenhouse gases. These are big climate missions, even if NASA can't say that.

Trump is trying to shut down one of the world's premier climate & weather research labs. Why? A petty beef with a Colorado official who didn't support his effort to steal the election. That's it.

The good thing about jetlag is I have a whole new timeline to acquanit myself with! Nice to meet you folks.

Honestly, this historic heat dome across the West is really hard to put into words for me. Temperatures over 110°F (43°C) in March, shattering all-time monthly records on multiple consecutive days, and not just by a little. ➡️ I can confirm this is human-caused climate change. polarwx.com/models/

This is the hall where the Kyoto Protocol was signed. It’s impossible not to feel the weight of history and the juxtaposition to current anti-science sentiment. Last week’s CMIP meeting lived up to that legacy—well-organized & rigorous. Perfect blend of historic significance and vision. #CMIP2026

A nice example of the high scientific standard of the IPCC when it comes to downplay the warming Complex Earth system models are needed to simulate all these feedback's now becoming operational #climate #IPCC #CMIP

Fantastic work by Aidan Starr, @ianhall.bsky.social & colleagues published in Paleo Paleo yesterday: Subsurface-to-deep C isotope gradients in the Southern Ocean across the MPT! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Have you noticed synchronized SST anomalies between the Pacific and Atlantic in global maps? It’s not a coincidence. According to a new study in Science Advances by Joh et al. (2026), this "oceanic handshake" is directly linked to the retreat of Arctic sea ice. 🌊🧪 ocean2climate.org/2026/03/01/t...

Goodmorning. Wow.

I crunched the numbers, and Glasgow was almost 1% oceanographers this week. Happy to have given my first ever poster at #OSM2026! 🌊🏴󠁧󠁢󠁳󠁣󠁴󠁿

❓When tipping causes tipping Ocean currents, monsoons, rainforests, ice sheets – all talk to each other Next week Anna von der Heydt @utrechtuniversity.bsky.social explains how such #climatetippingelements interact using paleoclimate clues🧩 Join us 3 Mar 2–3pm CET bit.ly/climtip-webi... #ClimTip

Eleanor’s talk on obs. Surprises and new opportunities. #OSM26 #AGU

Attending #OSM26 and looking to kickstart your career in ocean science policy? Hear from a variety of ocean policy experts and ask your questions about ocean policy engagement and careers! Join @aguscipolicy.bsky.social to learn more! buff.ly/SifEelU

Please join us for an #OSM26 townhall hosted by the Challenger Society, TOS + IMECaN on ‘Broadening the Ocean Science Workforce for a More Equitable, Inclusive, and Engaged Community’ including insights from successful actions + the role of scientific societies. Thurs 26 Feb, 12:45-13:45, Forth(SEC)

Our team is well represented at the @agu.org Ocean Sciences Meeting #OSM26 starting today in Glasgow (Scotland). Many interesting presentations from our team members during the coming week. Stay tuned, and feel free to take photos and tag us in your posts. #Arctic #Antarctic #science #npolar

Ocean friends going to the @agu.org’s #OSM2026: join us on Tuesday 12:45-13:45 for a Town Hall to update the community on the IPCC 7th Assessment Cycle, featuring a panel of AR7 authors 💡 @goneri76.bsky.social @aromanou.bsky.social @rrrocean.bsky.social @jbsallee.bsky.social @lijingcheng.bsky.social

The only photographic evidence of one of the most profoundly important events in modern Greek history, resurfaced last week, in a profoundly mundane Ebay auction. Been reeling over it for days. Awe and reverence. www.nytimes.com/2026/02/20/w...

There are big fascists and there are small fascists. You don’t see the latter. They hide behind the big fascists. But they can inflict as much damage.

This is very promising new from the NASA administrator after Congress, in a bipartisan manner, restored deep cuts proposed by the WH. NOAA and NSF budgets were also mostly restored. Checks and balances still have a faint pulse... spacepolicyonline.com/news/isaacma...

The @ipbes.net Business and Biodiversity Assessment is approved 🔨👏 #IPBES12

I will *only* watch the half time show. #benito

And just like that! The ZOD is done. #IPCC_AR7 Off to greater things!😅🙌🥂

While I am delighted to see this work published after collaborating with some of the field's greatest scientists, I am deeply unsettled by the consequences a potential AMOC collapse would have on communities and ecosystems. Here is to hoping global leaders take note. pub.norden.org/temanord2026...

Please join our discussion on extreme climate/weather events and tipping systems in the Earth system. 3 February, 2026 Time: 2:00–3:00 pm CET Webinar link: Join us here: lnkd.in/ec39G6R7

“People of every color Marching side to side Marching ‘cross these fields Where a million fascists dies You’re bound to lose You fascists bound to lose!” youtu.be/VwcKwGS7OSQ?...

@agu.org has a tool to help you submit a comment to NSF on the importance of NCAR: agu.quorum.us/campaign/154... #SaveNCAR

Want to work with the AGU SciPolicy Team? Voices for Science participants conduct regular outcomes-focused outreach to make a tangible impact at the local, federal, or global level. Applications for the U.S. cohort are open Dec 15 – Feb 15 buff.ly/BHStsrh

Let’s save the National Center for Atmospheric Research, the prime climate research lab in the US. ✊

Bridging Physics & AI in Climate Modeling 🌍🤖 Introducing JCM v1.0: A fully differentiable, intermediate-complexity atmospheric model built in Python/JAX. Training hybrid models is hard because legacy code lacks gradients. JCM solves this.

My village made it to New York Times (and Science and PNAS). www.nytimes.com/2026/01/26/s... Great work @katharv.bsky.social

🥵 2024 El Niño pushed us over 1.5°C, making it the hottest year on record: heatwaves floods hunger for +110 mln people $3.4 trn in costs Could such extremes trigger tipping points too? @aromanou.bsky.social #NASA explains in next #ClimTipWebinar Join 👉 3 Feb 2–3pm CET bit.ly/climtip-webi...

It appears that this legend owns a little bookstore — and you can order books from him instead of Bezos. Link in next post.

Checks out

Only well-off AAAS fellows are "ok"; the rest of us aren't. If the science minibus passes, the decimation remains. Colette notes NIH ECRs are crushed. NCAR is not explicitly protected. Money won't arrive before a 5% grant success rate at NASA planetary forces more ECRs out after the 20% NASA RIF.

Published today in "Ocean Heat Content Sets Another Record in 2025", by Pan et al. Link: link.springer.com/article/10.1...

I talked with @wuwmradio.bsky.social about data centers and how they affect the environment: www.wuwm.com/what-are-dat...

🌟 Editor's Pick! 🌟 “Simulations from a new lake model explain how liquid water could have been maintained over Mars in a cold climate, thus resolving a critical scientific gap in our understanding of Mars’ early history.” 🔗 eos.org/editor-highl... #AGUPubs @AGU_Eos

The ocean keeps getting hotter: In 2025, it absorbed 23 zettajoules (that’s 23 * 10²¹ joules) of heat, breaking a record for the ninth consecutive year. 🧪🌎🌊 eos.org/research-and...

@agu.org should give the social media person at Eos a raise.

Starting 2026 with a bang, our paper is published! 🎉🎉🎉 In it, we explored how polar amplification depends on the underlying climate state, with implications for understanding the past and future evolution of polar climate change! Enjoy! :) agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL118423

Have you seen the permafrost? Me neither. Catch a glimpse of its perils though in Yorgos Avgeropoulos' documentary (trailer here). www.youtube.com/watch?v=U1mF... #climatecrisis #fossilfuels #arctic

The ocean absorbs excess human emitted CO₂ from the atmosphere, and through a series of reactions, decreases seawater pH in a process known as #OceanAcidification. #OADayofAction 🧪🌊🦑 www.pmel.noaa.gov/co2/file/Haw... 📈 by #NOAA and UH Mānoa

Do alkalinity or nutrient levels have a bigger impact on marine phytoplankton? New research from @eth-eaps.bsky.social provides answers, with ramifications for oceanic carbon cycles and climate change. eos.org/research-spo...

2025 goes down as the ~3rd-warmest year on record (based on ERA5). Like in 2024, every single day this past year was warmer than the average of even the most recent reference period (1991-2020).

Marine heat waves can make heat over land much worse.

🚨 The first preliminary analysis from the Japan Meteorological Agency highlights 2025 as the third warmest year on record globally (since at least 1891 in this data). Additional climate rankings will be released later for other datasets. Graph and methods by ds.data.jma.go.jp/tcc/tcc/prod...