What will overshooting 1.5°C mean for Earth‘s ice? 🌡️❄️🏔️🌊 In collaboration with @unep.org, the @iccinet.org today published a major report, drawing on knowledge from 80+ leading scientists from 60 institutes across 25 countries. 👉 iccinet.org/overshoot/ Some key findings & implications below. 🧵

🌊 Worth a listen: Dr James Kirkham @iccinet.org live today on the Radio National Hour, ABC 🎧 www.abc.net.au/listen/progr...

Why cooling the planet may not bring the ice back - ABC listen

The difference between briefly exceeding 1.5 degrees and staying below it could be profound for the world’s frozen regions. A new report examines what an overshoot would mean for glaciers, ice sheets,...

abc.net.au

"Thousands of glaciers worldwide are expected to become extinct in the coming decade, every single year." — Dr James Kirkham @iccinet.org, with new report jointly published by @unep.org and more than 80 international scientists, including from @utas.edu.au

The Guardian@theguardian.com · 16h ago

Cryosphere faces permanent damage when world overshoots 1.5C, scientists warn

🌊 Plummeting sea-ice levels over the past decade have made a water layer known as #Antarctic Intermediate Water saltier, denser and sit deeper in the ocean. As a result, more heat may reach the deeper waters – with unknown consequences for the world’s climate. ▶️ theconversation.com/the-deep-oce...

The deep ocean’s protection against warming started to change in 2016. Nobody knows what happens now

Melting sea ice protects the deep ocean from warming – but when sea ice levels declined, the system began to break down.

theconversation.com

🌊🌏 In the latest edition of 'Southern Signals', featuring some of our news from the last three months: ocean drones, sea-ice krill-highways, 40000 grounded icebergs, our #climate shock absorber, and an #Antarctic blind spot for sea-level rise. Read all about it ▶️ createsend.com/t/j-518B1EAB...

🎡 ‘Ferrous wheel’ vs 🔄 ‘spinning manga’ 🤷🏻‍♀️

Wendel van der Sluis@wendelvandersluis.bsky.social · 2w ago

🌊 Iron is essential for #MarineLife, supporting primary production and nitrogen fixation. But how does it compare with manganese in the Southern Ocean? A new study in Botanica Marina explores how these key trace metals are recycled in the ocean’s upper 200 metres.

🌀 Polar dynamos

Aaron Becker@aaronjbecker.bsky.social · 3w ago

Two weeks of air moving over the entire planet, both poles in one frame. Color is air temperature, brightness is speed. Around Antarctica, the storms of the Southern Ocean race west to east with almost no land in their way. Data: ERA5 / Copernicus #weather #wind #dataviz

🌊 Around #Antarctica, coastal polynyas are regions of persistent open water within the sea ice. They play a crucial role in polar climate by exchanging heat and moisture between the ocean and atmosphere, absorbing solar radiation, promoting biological productivity, and acting as ‘sea-ice factories’.

Achievement of the promise to encircle the #Antarctic continent with marine protected areas needs a timetable set at this month's meeting of CCAMLR in Hobart, writes former US Secretary of State John Kerry in @prospectmagazine.co.uk. ▶️ www.prospectmagazine.co.uk/politics/753...

It’s time to keep our promise to protect Antarctica

The international system is under strain, but in the Southern Ocean global cooperation may still work

prospectmagazine.co.uk

🌊 The global ocean holds some 40 times more carbon than the atmosphere. It absorbs more than a quarter of our emissions every year, slowing the pace of climate change. The Southern Ocean has an outsized role in the #carbon budget and the #climate system. 🫧 aapp.shorthandstories.com/our-climate-...

🌊 Professors Nathan Bindoff and Delphine Lannuzel from AAPP are at the pre- #COP31 in Fiji, bringing #Antarctic and Southern Ocean #science to the centre of #climate action talks. @utas.edu.au @imas-utas.bsky.social @thesouthernocean.bsky.social

Two years of daily sea surface temperature – with #Antarctica at the centre of the world

Aaron Becker@aaronjbecker.bsky.social · last mo.

Ocean water warmer than 28 °C (82 °F) now covers 96 million km², up from 77 million on the same date last year: about two United States of extra hot sea surface. Two years of daily sea surface temperature. Data: NOAA OISST #ocean #climate #dataviz #maps

🌊 For an essential pre- #COP31 briefing on the risks of ignoring the potential sea-level rise risks from East #Antarctica's ice sheet to the Pacific and the world, check out this comprehensive presentation from @aussmc.bsky.social ▶️ www.scimex.org/newsfeed/new...

NEWS BRIEFING: What we don't know might hurt us - Antarctica's unexplo

NEWS BRIEFING: What we don't know might hurt us - Antarctica's unexplored threat ***RECORDING NOW AVAILABLE*** A region of Antarctica with enough ice to raise sea levels by three to four m

scimex.org

Congratulations to our physical oceanographer Prof Nathan Bindoff @utas.edu.au on his election as one of 34 new Fellows of the Australian Academy of Technological Sciences & Engineering.

🌊 “For those of us living in low-lying islands, atolls, coastal communities and delta regions, sea level rise is not a future threat or mere speculation. It is our present reality.” — Tuvalu Prime Minister Feleti Teo ▶️ pmn.co.nz/read/environ...

Antarctic 'blind spot' raises fresh sea-level concerns for Pacific

Scientists say a vast, little-studied ice basin could hold clues to how quickly sea levels could rise as the planet warms.

pmn.co.nz

🌊 Antarctic winter sea ice at 3rd-lowest level on record. “How sensitive is the global climate system to this loss of sea ice? We're still working to put numbers on that. But the system is changing faster than we are understanding it.” — Will Hobbs @utas.edu.au ▶️ www.theguardian.com/world/2026/s...

Antarctic winter sea ice falls to third-lowest level on record as scientists warn of ‘now problem’

Coverage levels fall a million square kilometres short of the long-term average, with global heating likely driving losses

theguardian.com

An enormous area of #Antarctic ice covering 1,400km by 400km, more than 4km thick in places, holds an estimated 3-4m of global sea-level rise, if melted. But for something so consequential for the natural world and human society, the Wilkes Subglacial Basin in #East Antarctica is largely unknown.

🌊 “The seven-metre craft, which looks like a large kayak in hi-vis orange, is expected to travel about 22,000km through inhospitable waters, propelled by powerful westerly winds and energy from the sun.” — @theguardian.com ▶️ www.theguardian.com/environment/...

‘Robust little’ vessel begins treacherous 22,000km journey around Antarctica in the name of climate science

Powered by sun and wind, the uncrewed vehicle will collect data to help Australian scientists better understand how oceans absorb emissions

theguardian.com

🌊 We've released a #Saildrone into the wild! Seven metres long, the solar-powered autonomous uncrewed vessel will circumnavigate #Antarctica to collect data on carbon dioxide absorbed by the Southern Ocean – crucial for predicting climate change. SD1092 is the first of four over the next few years.

For the first time, crucially important features of the #Antarctic coastal zone have been mapped in high resolution right around the continent, by training an artificial intelligence tool to accurately recognise grounded icebergs from satellite radar images. ▶️ aappartnership.org.au/picket-fence...

🚨 PhD project in Hobart @utas.edu.au 🌊 Using Deep Argo floats, investigate variability and change in #Antarctic Bottom Water and the deep overturning circulation in the Southern Ocean 🎓 Scholarships available ✍️ Applications close 1 October ▶️ More info at www.utas.edu.au/research/deg...

New research shows #Antarctic krill larvae can travel much farther across the Southern Ocean by hitching a ride with drifting sea ice than with ocean currents alone. ↔️ “Year to year, the same starting population of krill can experience very different transport pathways” — Aditya Sharma

🌊 Australian scientists are part of a bold international plan to target the knowledge gaps that prevent reliable predictions about the contributions of #Antarctic ice loss to global sea-level rise. ▶️ aappartnership.org.au/rings-around... 📸 F McCormack, @arcsaef.bsky.social

🌊 6 plenaries, 7 keynotes, 22 parallel sessions, 123 presentations, 121 posters, 29 lightning talks: many thanks to the 400 delegates from Tasmania, Australia and beyond who made #AARC2026 @utas.edu.au such a resounding success! ▶️ aappartnership.org.au/antarctic-sc... 📸 PW Allen, G Moss

Antarctic science, Australia's future #AARC2026 📸 Peter W Allen @utas.edu.au

The Australian #Antarctic Research Conference #AARC2026 is well under way with more than 400 people sharing posters, presentations, panels, and planning sessions — from humanities to glaciology, atmospheric science to technology, tourism to tipping points. ▶️ aappartnership.org.au/antarctic-sc...

More than 400 polar experts gather @utas.edu.au next week for the Australian Antarctic Research Conference. The event brings together our #Antarctic research community at a time of rapid and extreme climate-related changes on and around the icy continent. ▶️ aappartnership.org.au/antarctic-sc...

Rapid changes are reshaping #Antarctica, with consequences for our global #climate. This year's Philip Law Lecture 'Dispatches from the Far South' will be delivered by Dr Ed Doddridge @imas-utas.bsky.social, 6pm AEST on 20 August. Reserve your free seats now! ▶️ www.utas.edu.au/events/2026/...

🌊 In recent years #Antarctica has seen an explosion of climate-related change, with major implications for our planet. New extremes are emerging, including heatwaves, record-low sea ice and ice shelf collapses. These are the alarm bells from the south... ▶️ aapp.shorthandstories.com/alarm-bells-...

🌊 "A robot is cruising beneath #Antarctic sea ice. Another is bolted to the face of a collapsing Greenland glacier. A third is silently counting penguins on a remote, windswept beach. None of them has a human operator nearby." — @bas.ac.uk ▶️ www.bas.ac.uk/news/the-ris...

The rise of the robots: how autonomous vehicles are transforming polar science - British Antarctic Survey

Underwater, on the surface and in the air, robots are gathering data about our frozen planet – changing what is possible for polar science.

bas.ac.uk