I've been gabbling excitedly about this for a lil' while, but... it's getting real!

🌍✨🔭 I'm developing a live science show - think SPECTACLE - with my brilliant colleague Charly.

It's gonna be great, and I'm super hyped 👀

Go give Nova a follow to stay in the loop 👉 @nova-earth-astro.bsky.social

What!! 🌌🌌🌌

Screenshot of figures from the paper: Above a graph showing wiggly lines depicting the cumulative mass budget of Antarctica: a dark line swoops and wiggles downwards before stabilising at the end, colourful dashed lines (depicting snow fall) wiggle along constantly before sloping upwards at the same tme stabilisation occurs. Below 6 maps of Antarctica in blues and red depicting the mass change in different basins.

🚨 New @oceaniceeu.bsky.social preprint🚨 why has Antarctica stopped (net) losing mass, in spite of increased discharge?
Declining sea ice is part of the answer but increasingly heavy and frequent atmospheric rivers are most important factor.

Lots of important subtleties:
arxiv.org/abs/2510.03590

A grassy hill with lots of cards in the shape of orange t-shirts with messages written on them. The messages are people's commitments to reconciliation and/or why they attended the march or who they were commemorating.

A grassy amphitheater with many people sitting, almost all of them are wearing orange shirts.

The UBC engineering cairn painted orange with the message "Every Child Matters" in white and white handprints. Two people are standing to the left after adding handprints to the structure.

Today was Truth and Reconciliation Day to recognize the ongoing legacy and survivors of Indian Residential Schools.

Very grateful to all who came to our Inter-Generational march at UBC on the land of the xʷməθkʷəy̓əm (Musqueam) people and to our wonderful team of volunteers and organizers.

„Grüner Kolonialismus – Wie der globale Norden den Süden unter grünem Deckmantel weiter ausbeutet.“ — Katja Diehl Der September-Partner von She Drives Mobility sind die Energiewerke Schönau (EWS). Wenn auch du ein Unternehmen hast, das zu meinen Themen passt, melde dich ...

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Wenn er dir gefällt, freue ich mich über positives Feedback auf all diesen Plattformen - raus aus der Nische der Willigen!

Die aktuelle Folge beschäftigt sich mit einem Stachel in meinem Herzen:
Grüner Kolonialismus.

katja-diehl.de/gruener-kolo...

Continent-wide mapping shows increasing sensitivity of East Antarctica to meltwater ponding - Nature Climate Change This study provides a continent-wide assessment of surface meltwater area in Antarctica between 2006 and 2021, highlighting recent increases in magnitude and variability in East Antarctica, with indic...

I’m delighted to share that our new paper is now out in @natclimate.nature.com! Our long-term, monthly Antarctic-wide dataset of surface meltwater shows that the East Antarctic Ice Sheet is becoming increasingly prone to surface meltwater ponding.

Diagram of the Hadley circulation with a Western Hemisphere view of cloud cover in 2015. Hadley cells are large-scale circulation patterns that start with rising air on either side of the Equator, falling air at about 30˚ north and south, and then mid-latitude and polar cells from about 30˚-60˚ and 60˚–90˚, respectively.

Plot cloud cover from 90˚ south to 90˚ north on the vertical axis and from 1984 to 2018 on the horizontal axis. Cloud cover is shown in shades of blue to light gray. Over time the clouds bands have narrowed and moved towards the poles.

Drop-dead gorgeous figures showing Hadley circulation patterns & cloud trends by Michala Garrison, NASA Earth Observatory.

earthobservatory.nasa.gov/images/15444...

#dataviz 📊🗺️

I need you all to know that Spain received a letter from the European Broadcasting Union ordering them to not comment on the situation in Gaza during the Eurovision Song Contest or else they'd face consequences. This was the message they played before the broadcast, anyway:

#ESC #Eurovision

YouTube video by Simon Clark Should I feel guilty using AI?

Should you feel guilty using AI? I tried to unpick this question and ended up with a surprisingly personal video
youtu.be/5sFBySzNIX0

🧵
Here is Earth's rotation realized in an unusual way: using a camera scanning the landscape of Tivoli, Namibia, Bartosz Wojczyński focused on the sky.

He created a timelapse spanning 24 h that has a focal point in the sky rather than on the ground.

➡️ apod.nasa.gov/apod/ap20070...

🔭 🧪 #galactic

Excited that our study on Arctic climate emergence is out! Despite strong variability, we found that the Arctic is soon approaching a new climate state, with sea ice thickness and temperature emerging first. 🧊 Big thanks to Nicoleta, @nskyllas.bsky.social, and Richard! www.nature.com/articles/s41...

The image shows a celestial spectacle over Manitoba, Canada, on a cold winter morning. The moonlight, refracted, reflected and diffracted by millions of falling ice crystals, creates extraordinary optical phenomena. At the center, the Moon is surrounded by a colored halo, called the corona, generated by the diffraction of small droplets of water or ice. A 22-degree halo is seen around it, formed by the refraction of moonlight through six-sided cylindrical ice crystals. On either side of the moon are "moon dogs," bright spots caused by the refraction of light through thin, hexagonal ice plates floating toward the ground. Above and below the 22-degree halo are upper and lower tangent arcs, created by refraction through nearly horizontal ice cylinders. The sky, captured in three combined exposures, appears surreal, transforming the moon into an icon of another world.

🔭 🧪 ⚛️ #sciart

This breathtaking photo by Brent Mckean features a few atmospheric optics phenomena due to refraction, reflection and diffraction of moonlight from millions of falling ice crystals.

Image source➡️ apod.nasa.gov/apod/ap20022...

New look at the landscape beneath Antarctica 🇦🇶

Without the 27.17 million km³ of ice.

This clearly shows that much the West-Antarctic Ice Sheet is below sea level.

That's why it melts rapidly in a warmer climate, like it did ~120,000 years ago during the Eemian interglacial.

A newly surfaced document reveals the beef industry’s secret climate plan What the beef industry knew about its environmental impact — and how it spent decades blocking climate action.

The beef industry has done an incredible job of greenwashing -- far better than the fossil fuel industry.

And the playbook is pretty damn clear. And, sadly, it's working incredibly well -- to the point of misleading the whole world, including many environmentalists...

www.vox.com/future-perfe...

Feels like we're doing something really wrong if we need a World Water Day but here we are.

Here’s a reminder that 2.2 billion people have no access to safe water and half the world doesn’t have basic sanitation but yet rich countries flush their toilets with clean drinking water.

Yee 🐧🐧🐧

My awesome colleague Abraham Torres ran a bunch of simulations with our new regional climate model #HCLIM + showed that 2.5km resolution was really crucial to resolve precipitation from ARs on ice shelves and ice sheet. Cloud processes + foehn are also crucial to get the energy budget correct
🥼❄️

And @martinstendel.bsky.social, forgot you are on Bluesky!! 🌌

Had lots of fun working on this! Atmospheric rivers can induce strong melt episodes, which tend to be underestimated in reanalyses and models. These models strongly diverge in their simulation of clouds and the surface energy balance 🌨️☼ Big thanks to @ruthmottram.bsky.social and my other co-authors!

🌨️🌨️🌨️ For those curious about Antarctic Atmospheric Rivers, this is a really nice overview! Thanks @jonathanwille.bsky.social for initiating, and to everyone else involved in bringing it together!

This is a cool paper. Even if you don't work on ocean dynamics or the Southern Ocean, check out the great figures. 🌊🧪

Map of Arctic 2-m air temperature anomalies over the next 7 days across the Arctic from the 1 February 2025 18z GFS model run. The Arctic is forecast to be over 6°C above average.

The extent of #Arctic sea ice is already a record low for this time of year, and yet a highly anomalous surge of heat and moisture is still inbound toward the North Pole over the week ahead... Local temperature anomalies will exceed 20°C above average.

Graphic from www.karstenhaustein.com/climate 🧪

It is high time to meditate on the effect that North American conditions can have on Europe (and not only from a meteorological viewpoint!)

In the current event, I like how it is the same trough now above the southern US that moves over the Atlantic to support the strong Atlantic cyclogenesis 🌀

Is AI our new oracle predicting how fast the ice is melting? Current ice sheet melting models are slow, inaccurate and expensive. The picture of the future is uncertain - but AI can change that.

Very proud of our talented PhDs + postdocs whose great introduction to #machineLearning in #glaciology of #Greenland + #Antarctic ice sheets is now in English!

https://www.sciencenordic.com/artificial-intelligence-climate-change/is-ai-our-new-oracle-predicting-how-fast-the-ice-is-melting/2451960

Noo… have a look on Facebook marketplace (I have a dummy account just for these things). Or dba, but thieves usually know what they’re doing

What's in a Name? On the Use and Significance of the Term “Polar Vortex” The stratospheric polar vortex is a well-defined feature dominating the cool-season circulation in each hemisphere from ∼15–50 km altitude The tropospheric circulation does not constitute a singl...

Journalists should avoid using 'polar vortex' as a synonym for cold-air outbreak/Arctic airmass.

This isn't just my opinion – there is published science encouraging this. doi.org/10.1029/2021...

In an era of climate change, it is important to report weather events and terminology accurately.

🌧️ Atmospheric Rivers in Antarctica: What causes the highest impacts, and how does their vertical structure relate to these differences? We analyzed several models and reanalyses to uncover key insights, for example how sea ice buffers ARs near the coast! www.sciencedirect.com/science/arti...