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Reposted by Dr Petra Heil

World Meteorological Organization @wmo-global.bsky.social · 3d

🌍 75 Years of Science for Action

Penny Endersby, Chief Executive of the Met Office (@metoffice.gov.uk) highlights WMO’s most important deliverables over the past decades.

🔗 Learn more here: https://wmo.int/site/75-years-of-wmo-science-action

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Dr Petra Heil @pxh.bsky.social · 3d

One of the faces of abruptly changing climate: Thin ice types prevail changing the prevailing ice deformation process to rafting.
➡️ Sea-ice lamination.

Great images @ippy90.bsky.social

Prof Alessandro Toffoli @atoffoli.bsky.social · 3d

A beautiful and rare view of finger rafting in Antarctic sea ice, captured a few hundred kilometres from Casey Station by our expeditioner @ippy90.bsky.social
@pxh.bsky.social
@antarctic.bsky.social

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Dr Petra Heil @pxh.bsky.social · 8d

Recent observed Antarctic change gives evidence of sea ice no longer in steady state but transgressed a tipping point around 2020. (Marilyn Raphael)

#RoyalSociety "Global impacts of climate extremes in polar regions: is Antarctica reaching a tipping point?"

@ioes.ucla.edu
@aspectsouth.bsky.social

Dr Petra Heil @pxh.bsky.social · 8d

Final words: It is likely too late for the Amundsen [region] but reducing CO2 and other greenhouse emissions have potential to save the larger Antarctic glacial ice shelves".

Dr Petra Heil @pxh.bsky.social · 8d

The observational record is too short, regionality too high to unequivocally attribute change across the ocean-ice-atmosphere & ecosystem.

#RoyalSociety "Global impacts of climate extremes in polar regions: is Antarctica reaching a TP?"
@krhendry.bsky.social @bas.ac.uk @kaitlinnaughten.bsky.social

Dr Kaitlin Naughten from BAS speaking at the Royal Society's workshop "Global impacts of climate extremes in the polar regions: is Antarctica reaching a tipping point?"

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Reposted by Dr Petra Heil

Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 8d

Was derzeit im Atlantik passiert könnte auch dein Leben erheblich verändern.
Beim Extremwetterkongress letzte Woche habe ich es in nur 12 Minuten erklärt. 🌊
youtu.be/2nqb03Mvflk?...

Atlantikströmung #AMOC vor dem Kipppunkt?

YouTube video by Earth System Analysis - Potsdam Institute

youtu.be

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Dr Petra Heil @pxh.bsky.social · 8d

The observational record is too short, regionality too high to unequivocally attribute change across the ocean-ice-atmosphere & ecosystem.

#RoyalSociety "Global impacts of climate extremes in polar regions: is Antarctica reaching a TP?"
@krhendry.bsky.social @bas.ac.uk @kaitlinnaughten.bsky.social

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Reposted by Dr Petra Heil

British Antarctic Survey 🐧 @bas.ac.uk · 9d

Polar scientists meeting at @royalsociety.org
in London this week are issuing a stark warning: dramatic and extreme changes in Antarctica are happening faster than expected, with consequences that will affect everyone on the planet.

www.bas.ac.uk/media-post/a...

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Dr Petra Heil @pxh.bsky.social · 9d

Key message from "Global impacts of climate extremes in polar regions: is Antarctica reaching a TP?" workshop:
Shallow Antarctic ice cores are urgently needed to connect the long-term record with recent abrupt changes. I.e., sea-ice decline, ocean heat waves, atmospheric warming.

#AntarcticaInSync

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Dr Petra Heil @pxh.bsky.social · 9d

Why does Antarctica matter? Learn about its global importance.

Opening of the Royal Society workshop "Global impacts of climate extremes in the polar regions: is Antarctica reaching a tipping point?"

Prof Jane Francis @bas.ac.uk @krhendry.bsky.social @oceanandice.bsky.social

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Dr Petra Heil @pxh.bsky.social · 11d

Need more information?
➡️ "Global impacts of climate extremes in the polar regions: is Antarctica reaching a tipping point?"
29 - 30 September 2025
The Royal Society, UK

Watch online
royalsociety.org/science-even...

@krhendrey.bsky.social
@oceanandice.bsky.social
@bas.ac.uk

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Dr Petra Heil @pxh.bsky.social · 11d

Earth and with it civilisation faces imminent challenges in #ClimatTippingPoints and #BiodiversityLoss. ➡️ Agreements n acrion are needed.

#COP30: “Attendance is not a courtesy – it is a test of leadership."

www.theguardian.com/environment/...

‘History will remember who showed up’: Keir Starmer faces call to attend Cop30 summit

Response from leaders and key climate figures comes after PM’s aides advised non-attendance over concerns Reform may attack him

www.theguardian.com

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Dr Petra Heil @pxh.bsky.social · 13d

Invaluable interface measurement will be obtained off East Antarctica this season by our ocean-sea ice-atmosphere underway system on RSV Nuyina @antarctic.bsky.social Run by @ippy90.bsky.social with @atoffoli.bsky.social.

➡️ Critical foundation for #AntarcticaInSync

@science.esa.int
@bas.ac.uk

Ippolita Tersigni @ippy90.bsky.social · 13d

We’re off tomorrow on Voyage 1 with the @antarctic.bsky.social 🚢❄️🌊🇦🇶
On the RSV Nuyina, our cameras will capture key #ocean & #seaice properties to understand how sea ice forms, melts, and interacts with the climate system. Stay tuned for updates!🐧🧊 @atoffoli.bsky.social @pxh.bsky.social

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Reposted by Dr Petra Heil

Stockholm Resilience Centre @sthlmresilience.bsky.social · 13d

Planetary boundaries gain global traction.

The Planetary Health Check shows 7 of 9 boundaries breached, but action is growing across governments, cities, business and finance. Co-authors Albert Norström and Tiina Häyhä highlight emerging practices.

🔗 www.stockholmresilience.org/news--events...

The 2025 update to the Planetary boundaries illustration.

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Reposted by Dr Petra Heil

Mark Gongloff @markgongloff.bsky.social · 20d

When the world's biggest insurer says climate change has pushed traditional home insurance to its limits, it's already too late to start preparing. And we are in no way ready for a post-insurance world.

Gift link to my column for @opinion.bloomberg.com

www.bloomberg.com/opinion/arti...

Home Insurance as You Know It Is Doomed. You’re Not Ready.

The remedies for homeowners so far aren’t preparing them for a financially stable existence as the risk of disaster increases.

www.bloomberg.com

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Reposted by Dr Petra Heil

National Emergency Briefing @nebriefing.bsky.social · Aug 26

📢 Britain faces a climate & nature emergency.
On 27 Nov, eight leading experts will brief 800+ leaders from politics, business, culture, faith & media.

An unfiltered overview of the latest threats & solutions.
Only by facing it can we rise to the challenge.
www.nebriefing.org

National Emergency Briefing on climate & nature

The time for warnings is over. This is a briefing for the age of impacts. Please ask your MP to attend.

www.nebriefing.org

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Dr Petra Heil @pxh.bsky.social · Sep 6

Beautiful and thought provoking. ⬇️
Check it out yourself!

British Antarctic Survey 🐧 @bas.ac.uk · Aug 22

Looking for some Bank Holiday reading? 📖

Check out our collection of Long Read articles where we explore the exciting work happening at BAS, hearing from the experts.

Our latest edition looks at how glaciers provide vital nutrients to our oceans - take a look ⬇️

www.bas.ac.uk/blogpost/fee...

Photograph of three people in orange hi-vis clothing standing on a boat with a glacier in the background. One person hold a large metal cylinder.

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Reposted by Dr Petra Heil

British Antarctic Survey 🐧 @bas.ac.uk · Aug 19

Key focus areas:
• Recent unprecedented Antarctic climate events
• Scientific evidence for potential tipping points
• Global impact assessment and implications
• Stakeholder perspectives and response strategies

The event is free to attend but registration is essential.

Global impacts of climate extremes in the polar regions: is Antarctica reaching a tipping point? | Royal Society

Discussion meeting organiser by Professor Katherine Hendry, Dame Jane Francis DCMG FRS, Professor Michael Meredith, Professor Geraint Tarling, Dr Alexander Brearley, Professor Dominic Hodgson and Dr…

royalsociety.org

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Reposted by Dr Petra Heil

British Antarctic Survey 🐧 @bas.ac.uk · Aug 19

Are you a researcher, policymaker or professional working in climate science, environmental policy and sustainability?

📆 Save the date for 29 and 30 September.

📸 Paul Holland, BAS

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Reposted by Dr Petra Heil

Zack Labe @zacklabe.com · Sep 5

While sea ice melt accelerated last month across the Beaufort Sea, higher areas of sea-ice concentration continued in the East Siberian Sea. No new records will be set again this year

+ Data: nsidc.org/data/g02202/...
+ Concentration = fraction of sea ice
+ Graphic from zacklabe.com/arctic-sea-i...

Two polar stereographic maps side-by-side showing Arctic sea ice concentration and its anomalies relative to 1981-2010 for August 2025. Red shading is shown for less ice, and blue shading is shown for more ice. Most areas are below average for sea ice concentration along the edge of the Arctic. Continents and land are masked out in a gray shading.

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Reposted by Dr Petra Heil

Henry Patton @rhewlif.xyz · Sep 5

As mentioned in this interview with our cruise leader, Jochen Knies, the ease with which we reached the pole was unthinkable 30 years ago when he last visited.

"Reading about it is one thing - witnessing it firsthand is something entirely different" @i2b-erc.bsky.social

“I didn’t hear the usual grinding of ice”

When a Norwegian vessel reached the North Pole this week, the scientific team made an alarming discovery.

www.thebarentsobserver.com

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Dr Petra Heil @pxh.bsky.social · Sep 5

Surprise!

Prof. Ian Walker @ianwalker.bsky.social · Sep 5

"UK government trial of M365 Copilot finds no clear productivity boost"
www.theregister.com/2025/09/04/m...

M365 Copilot fails to up productivity in UK government trial

: AI tech shows promise writing emails or summarizing meetings. Don't bother with anything more complex

www.theregister.com

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Dr Petra Heil @pxh.bsky.social · Sep 4

Our new Elementa paper on Status of ocean observations in the Indian Sector of the Southern Ocean is out:

doi.org/10.1525/elem...

Congratulations @svenjahalfter.bsky.social and team!

@antarctic.bsky.social @antarcticsciaus.bsky.social @slfdavos.bsky.social #AustralianAntarcticDivision

Observation density of plankton data in the Southern Ocean Continuous Plankton Recorder database, as number of silk segments per location (1991–2023). Grey lines show Southern Ocean fronts.

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Dr Petra Heil @pxh.bsky.social · Sep 4

Obviously these and election-cycle time scales do not match.
➡️ To overcome this, strong policy and legislation need to be created, implemented and anchored globally and into the future.

Zeke Hausfather @hausfath.bsky.social · Sep 4

I'm not sure many folks realize just how persistent the warming from CO2 is.

Here is a set of 1000-year climate model runs (using FaIR) simulating one year of CO2 emissions (40 gigatons in 2020); a millennia later the world has not cooled back down!

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Reposted by Dr Petra Heil

Helen Czerski @helenczerski.bsky.social · Sep 1

For this Friday's Rare Earth I visited a VERY cold room in Cambridge where they're doing experiments to see whether they can help Arctic sea ice last longer. But should we even be thinking about this, who would pay for it, and what are the wider implications? Do listen in this Friday to find out.

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Dr Petra Heil @pxh.bsky.social · Sep 2

Awards for the 2026 International Glaciological Society [IGS] Awards are open to 28 September:

5 categories incl Seligman Crystal, MCR & ECR awards, pls nominate your colleagues, teams & those who make cryospheric science happen.

Details & application form: igsoc.org/about/awards