Australian Antarctic Program Partnership
@antarctic.bsky.social
To protect Antarctica and the Southern Ocean is to protect our future on this planet. In this critical decade for action, our science explores the role of the Antarctic region in the global climate system. Led by @utas.edu.au.
🔗 aappartnership.org.au
🔗 aappartnership.org.au
4/ Emissions cuts? Temperature limits? 🧊 As @iccinet.bsky.social says, we cannot negotiate with the melting point of ice.
“Losing sea ice is making climate change up to 15 percent worse than it would otherwise be.” — @edoddridge.bsky.social @utas.edu.au
▶️ aapp.shorthandstories.com/a-world-with...
“Losing sea ice is making climate change up to 15 percent worse than it would otherwise be.” — @edoddridge.bsky.social @utas.edu.au
▶️ aapp.shorthandstories.com/a-world-with...
November 17, 2025 at 2:11 AM
4/ Emissions cuts? Temperature limits? 🧊 As @iccinet.bsky.social says, we cannot negotiate with the melting point of ice.
“Losing sea ice is making climate change up to 15 percent worse than it would otherwise be.” — @edoddridge.bsky.social @utas.edu.au
▶️ aapp.shorthandstories.com/a-world-with...
“Losing sea ice is making climate change up to 15 percent worse than it would otherwise be.” — @edoddridge.bsky.social @utas.edu.au
▶️ aapp.shorthandstories.com/a-world-with...
🧵
BY 2030: "The remaining carbon budget to limit global warming to 1.5°C is virtually exhausted and is equivalent to only four years of current emissions." — @pfriedling.bsky.social and @hausfath.bsky.social on the 2025 Global Carbon Budget in @carbonbrief.org
▶️ www.carbonbrief.org/analysis-fos...
BY 2030: "The remaining carbon budget to limit global warming to 1.5°C is virtually exhausted and is equivalent to only four years of current emissions." — @pfriedling.bsky.social and @hausfath.bsky.social on the 2025 Global Carbon Budget in @carbonbrief.org
▶️ www.carbonbrief.org/analysis-fos...
November 17, 2025 at 2:11 AM
🧵
BY 2030: "The remaining carbon budget to limit global warming to 1.5°C is virtually exhausted and is equivalent to only four years of current emissions." — @pfriedling.bsky.social and @hausfath.bsky.social on the 2025 Global Carbon Budget in @carbonbrief.org
▶️ www.carbonbrief.org/analysis-fos...
BY 2030: "The remaining carbon budget to limit global warming to 1.5°C is virtually exhausted and is equivalent to only four years of current emissions." — @pfriedling.bsky.social and @hausfath.bsky.social on the 2025 Global Carbon Budget in @carbonbrief.org
▶️ www.carbonbrief.org/analysis-fos...
4/ “PACE offers us a once-in-a-generation opportunity to better understand how phytoplankton will respond to climate change, and what this means for nutrient and carbon cycling in the Southern Ocean.” — Dr Robert Strzepek, AAPP @imas-utas.bsky.social
🛰️ aappartnership.org.au/nasa-eye-in-...
🛰️ aappartnership.org.au/nasa-eye-in-...
November 11, 2025 at 3:15 AM
4/ “PACE offers us a once-in-a-generation opportunity to better understand how phytoplankton will respond to climate change, and what this means for nutrient and carbon cycling in the Southern Ocean.” — Dr Robert Strzepek, AAPP @imas-utas.bsky.social
🛰️ aappartnership.org.au/nasa-eye-in-...
🛰️ aappartnership.org.au/nasa-eye-in-...
3/ This year-long visualisation of PACE chlorophyll data shows areas with high chlorophyll concentration in red and yellow, medium chlorophyll in green and low chlorophyll in blue and purple. This covers one year, revealing the seasonal cycle of phytoplankton activity.
November 11, 2025 at 3:15 AM
3/ This year-long visualisation of PACE chlorophyll data shows areas with high chlorophyll concentration in red and yellow, medium chlorophyll in green and low chlorophyll in blue and purple. This covers one year, revealing the seasonal cycle of phytoplankton activity.
2/ Launched in 2024, PACE carries an advanced ocean colour sensor that detects green pigments like chlorophyll which reveal the community composition of microscopic plants known as phytoplankton. Here's an algal bloom in Bass Strait captured by PACE in 2024.
November 11, 2025 at 3:15 AM
2/ Launched in 2024, PACE carries an advanced ocean colour sensor that detects green pigments like chlorophyll which reveal the community composition of microscopic plants known as phytoplankton. Here's an algal bloom in Bass Strait captured by PACE in 2024.
1/ More than 600km above 🌏, NASA's PACE (standing for Plankton, Aerosol, Cloud, Ecosystem) satellite is in a polar orbit. Covering the globe in about two days, it gathers data on ocean colour, aerosols, and clouds enabling the study of climate change and ocean ecosystems.
November 11, 2025 at 3:15 AM
1/ More than 600km above 🌏, NASA's PACE (standing for Plankton, Aerosol, Cloud, Ecosystem) satellite is in a polar orbit. Covering the globe in about two days, it gathers data on ocean colour, aerosols, and clouds enabling the study of climate change and ocean ecosystems.
🌊⚠️ "Understanding and predicting marine-terminating glacier instability presents one of the greatest challenges to forecasting future sea level rise" — case of the Hektoria Glacier in #Antarctica, which retreated ~25 km from Jan 2022 to March 2023.
Research briefing @nature.com ▶️ rdcu.be/eN9DL
Research briefing @nature.com ▶️ rdcu.be/eN9DL
November 4, 2025 at 5:12 AM
🌊⚠️ "Understanding and predicting marine-terminating glacier instability presents one of the greatest challenges to forecasting future sea level rise" — case of the Hektoria Glacier in #Antarctica, which retreated ~25 km from Jan 2022 to March 2023.
Research briefing @nature.com ▶️ rdcu.be/eN9DL
Research briefing @nature.com ▶️ rdcu.be/eN9DL
6/ This work provides a blueprint for more reliable habitat modelling in other poorly observed ecosystems. It also provides a quantitative framework that can inform marine protected area design, biodiversity monitoring, and policy decisions under climate change.
October 31, 2025 at 5:28 AM
6/ This work provides a blueprint for more reliable habitat modelling in other poorly observed ecosystems. It also provides a quantitative framework that can inform marine protected area design, biodiversity monitoring, and policy decisions under climate change.
5/ When environmental information about the Southern Ocean is sparse, ocean models can help close the data gap. But since models are a simplification of reality, can we trust them? These results show that we can, but only if the ocean model is good at representing the Southern Ocean environment.
October 31, 2025 at 5:28 AM
5/ When environmental information about the Southern Ocean is sparse, ocean models can help close the data gap. But since models are a simplification of reality, can we trust them? These results show that we can, but only if the ocean model is good at representing the Southern Ocean environment.
4/ Sea ice (e.g. concentration, thickness, long-term presence) also features as a key environmental variable used as predictors for crabeater seal distribution in East Antarctica.
October 31, 2025 at 5:28 AM
4/ Sea ice (e.g. concentration, thickness, long-term presence) also features as a key environmental variable used as predictors for crabeater seal distribution in East Antarctica.
3/ Fun fact: despite their name, crabeater seals are experts at eating krill. Their love for krill shows in their teeth, which are beautifully modified for sieving krill from seawater. So perhaps not surprisingly, the distribution of Antarctic krill is a key driver of crabeater seal distribution.
October 31, 2025 at 5:28 AM
3/ Fun fact: despite their name, crabeater seals are experts at eating krill. Their love for krill shows in their teeth, which are beautifully modified for sieving krill from seawater. So perhaps not surprisingly, the distribution of Antarctic krill is a key driver of crabeater seal distribution.
1/ Crabeater seals are the most abundant top predator in the Southern Ocean and probably the most numerous large wild mammals on earth. Because they live almost their entire lives amongst floating sea ice around #Antarctica, it’s difficult to count them – total population is an estimated 15 million.
October 31, 2025 at 5:28 AM
1/ Crabeater seals are the most abundant top predator in the Southern Ocean and probably the most numerous large wild mammals on earth. Because they live almost their entire lives amongst floating sea ice around #Antarctica, it’s difficult to count them – total population is an estimated 15 million.
The latest issue of our quarterly science bulletin 'Southern Signals' dropped today. Please sign up at aappartnership.org.au/contact-us/ to receive yours by email.
You can read it at createsend.com/t/j-B016AC5A...
You can read it at createsend.com/t/j-B016AC5A...
October 31, 2025 at 2:56 AM
The latest issue of our quarterly science bulletin 'Southern Signals' dropped today. Please sign up at aappartnership.org.au/contact-us/ to receive yours by email.
You can read it at createsend.com/t/j-B016AC5A...
You can read it at createsend.com/t/j-B016AC5A...
🌊 We work to turn our research @utas.edu.au into real-world impact, to inform decision-making that recognises the centrality of #Antarctica and the Southern Ocean to the global climate system.
A special report (best viewed on a large screen or laptop) ▶️ aapp.shorthandstories.com/research-and...
A special report (best viewed on a large screen or laptop) ▶️ aapp.shorthandstories.com/research-and...
October 31, 2025 at 2:56 AM
🌊 We work to turn our research @utas.edu.au into real-world impact, to inform decision-making that recognises the centrality of #Antarctica and the Southern Ocean to the global climate system.
A special report (best viewed on a large screen or laptop) ▶️ aapp.shorthandstories.com/research-and...
A special report (best viewed on a large screen or laptop) ▶️ aapp.shorthandstories.com/research-and...
🦠🧪 Congratulations to our biogeochemistry team on winning an Australian Research Council (ARC) Discovery Project grant to iron out wrinkles in climate models.
▶️https://aappartnership.org.au/unlocking-how-iron-shapes-ocean-life-and-climate/
▶️https://aappartnership.org.au/unlocking-how-iron-shapes-ocean-life-and-climate/
October 30, 2025 at 5:46 AM
🦠🧪 Congratulations to our biogeochemistry team on winning an Australian Research Council (ARC) Discovery Project grant to iron out wrinkles in climate models.
▶️https://aappartnership.org.au/unlocking-how-iron-shapes-ocean-life-and-climate/
▶️https://aappartnership.org.au/unlocking-how-iron-shapes-ocean-life-and-climate/
H5 strain of bird flu on Heard Island? Samples are yet to be tested. "The majority of mortalities were detected in elephant seal pups and in a small number of adults." — Dr Julie McInnes, wildlife ecologist with AAD and @imas-utas.bsky.social
▶️ www.abc.net.au/news/2025-10...
📸 Matt Curnock
▶️ www.abc.net.au/news/2025-10...
📸 Matt Curnock
October 24, 2025 at 5:06 AM
H5 strain of bird flu on Heard Island? Samples are yet to be tested. "The majority of mortalities were detected in elephant seal pups and in a small number of adults." — Dr Julie McInnes, wildlife ecologist with AAD and @imas-utas.bsky.social
▶️ www.abc.net.au/news/2025-10...
📸 Matt Curnock
▶️ www.abc.net.au/news/2025-10...
📸 Matt Curnock
🧗 "I always want to make sure that, as far as possible, we will always be able to access somebody in trouble." — Dr Will Hobbs, AAPP sea ice scientist @utas.edu.au
Congrats to Will and the Climbers Club of Tasmania Vertical Rescue Team for their national award
▶️ www.abc.net.au/news/2025-10...
Congrats to Will and the Climbers Club of Tasmania Vertical Rescue Team for their national award
▶️ www.abc.net.au/news/2025-10...
October 16, 2025 at 11:18 PM
🧗 "I always want to make sure that, as far as possible, we will always be able to access somebody in trouble." — Dr Will Hobbs, AAPP sea ice scientist @utas.edu.au
Congrats to Will and the Climbers Club of Tasmania Vertical Rescue Team for their national award
▶️ www.abc.net.au/news/2025-10...
Congrats to Will and the Climbers Club of Tasmania Vertical Rescue Team for their national award
▶️ www.abc.net.au/news/2025-10...
In our annual workshop this week, a hundred or so enthusiastic AAPP-ers spent two great days discussing our research so far and where we need to take it, to fully explore the pivotal roles of #Antarctica and the Southern Ocean in the global #climate system.
▶️ aappartnership.org.au/2025-aapp-wo...
▶️ aappartnership.org.au/2025-aapp-wo...
October 16, 2025 at 4:20 AM
In our annual workshop this week, a hundred or so enthusiastic AAPP-ers spent two great days discussing our research so far and where we need to take it, to fully explore the pivotal roles of #Antarctica and the Southern Ocean in the global #climate system.
▶️ aappartnership.org.au/2025-aapp-wo...
▶️ aappartnership.org.au/2025-aapp-wo...
Congratulations to #Antarctic ice-sheet modeller Dr Chen Zhao on another excellent award!
🏆 aappartnership.org.au/rising-star-...
@czhao-ice.bsky.social @utas.edu.au @imas-utas.bsky.social @antarcticsciaus.bsky.social
🏆 aappartnership.org.au/rising-star-...
@czhao-ice.bsky.social @utas.edu.au @imas-utas.bsky.social @antarcticsciaus.bsky.social
October 8, 2025 at 10:53 PM
Congratulations to #Antarctic ice-sheet modeller Dr Chen Zhao on another excellent award!
🏆 aappartnership.org.au/rising-star-...
@czhao-ice.bsky.social @utas.edu.au @imas-utas.bsky.social @antarcticsciaus.bsky.social
🏆 aappartnership.org.au/rising-star-...
@czhao-ice.bsky.social @utas.edu.au @imas-utas.bsky.social @antarcticsciaus.bsky.social
🌏 Why Antarctica matters to Australia
🛝 Abrupt changes in the Antarctic environment
🌊 Antarctica and sea-level rise
AAPP & @antarcticsciaus.bsky.social have sent these policy briefs to hundreds of politicians and policymakers around Australia.
Download yours ▶️ aappartnership.org.au/antarctic-re...
🛝 Abrupt changes in the Antarctic environment
🌊 Antarctica and sea-level rise
AAPP & @antarcticsciaus.bsky.social have sent these policy briefs to hundreds of politicians and policymakers around Australia.
Download yours ▶️ aappartnership.org.au/antarctic-re...
September 29, 2025 at 4:56 AM
🌏 Why Antarctica matters to Australia
🛝 Abrupt changes in the Antarctic environment
🌊 Antarctica and sea-level rise
AAPP & @antarcticsciaus.bsky.social have sent these policy briefs to hundreds of politicians and policymakers around Australia.
Download yours ▶️ aappartnership.org.au/antarctic-re...
🛝 Abrupt changes in the Antarctic environment
🌊 Antarctica and sea-level rise
AAPP & @antarcticsciaus.bsky.social have sent these policy briefs to hundreds of politicians and policymakers around Australia.
Download yours ▶️ aappartnership.org.au/antarctic-re...
🌀The stratospheric polar vortex is a belt of high-speed cyclonic winds around 12-20km high over the poles. When temperatures in the stratosphere – which contains the ozone layer – start rising in the southern spring, the ozone hole over the Antarctic grows.
2025 ozone: @copernicusecmwf.bsky.social
2025 ozone: @copernicusecmwf.bsky.social
September 26, 2025 at 6:32 AM
🌀The stratospheric polar vortex is a belt of high-speed cyclonic winds around 12-20km high over the poles. When temperatures in the stratosphere – which contains the ozone layer – start rising in the southern spring, the ozone hole over the Antarctic grows.
2025 ozone: @copernicusecmwf.bsky.social
2025 ozone: @copernicusecmwf.bsky.social
🌊 “The fact that 1.5 million Australians may be impacted by rising seas and coastal hazards by 2050 is shocking, even for this sea level scientist.” — Prof Matt King @deformedearth.bsky.social @antarcticsciaus.bsky.social @utas.edu.au
▶️ aappartnership.org.au/antarctic-sc...
▶️ aappartnership.org.au/antarctic-sc...
September 15, 2025 at 9:08 AM
🌊 “The fact that 1.5 million Australians may be impacted by rising seas and coastal hazards by 2050 is shocking, even for this sea level scientist.” — Prof Matt King @deformedearth.bsky.social @antarcticsciaus.bsky.social @utas.edu.au
▶️ aappartnership.org.au/antarctic-sc...
▶️ aappartnership.org.au/antarctic-sc...
💪 A superpower of the Southern Ocean is taking up heat and carbon from humans and slowing the rate of global warming, by exchanging heat and carbon between the atmosphere and the deep ocean.
🔄 The freeze-and-melt cycle of sea ice drives this exchange by changing water density and acting as a pump.
🔄 The freeze-and-melt cycle of sea ice drives this exchange by changing water density and acting as a pump.
September 12, 2025 at 6:34 AM
💪 A superpower of the Southern Ocean is taking up heat and carbon from humans and slowing the rate of global warming, by exchanging heat and carbon between the atmosphere and the deep ocean.
🔄 The freeze-and-melt cycle of sea ice drives this exchange by changing water density and acting as a pump.
🔄 The freeze-and-melt cycle of sea ice drives this exchange by changing water density and acting as a pump.
"Safeguarding the polar regions from dangerous geoengineering: a critical assessment of proposed concepts and future prospects", published in Frontiers in Science
▶️ doi.org/10.3389/fsci...
▶️ doi.org/10.3389/fsci...
September 10, 2025 at 4:17 AM
"Safeguarding the polar regions from dangerous geoengineering: a critical assessment of proposed concepts and future prospects", published in Frontiers in Science
▶️ doi.org/10.3389/fsci...
▶️ doi.org/10.3389/fsci...
🚨 WORK WITH US at @imas-utas.bsky.social IN HOBART!
🦐 Research Associate – Krill Physiologist
🚢 Study #climate change impacts on #Antarctic krill through fieldwork on marine voyages and aquaria experiments
✍️ Applications close 26 October 2025
▶️ careers.utas.edu.au/en/job/50143...
🦐 Research Associate – Krill Physiologist
🚢 Study #climate change impacts on #Antarctic krill through fieldwork on marine voyages and aquaria experiments
✍️ Applications close 26 October 2025
▶️ careers.utas.edu.au/en/job/50143...
September 8, 2025 at 2:16 AM
🚨 WORK WITH US at @imas-utas.bsky.social IN HOBART!
🦐 Research Associate – Krill Physiologist
🚢 Study #climate change impacts on #Antarctic krill through fieldwork on marine voyages and aquaria experiments
✍️ Applications close 26 October 2025
▶️ careers.utas.edu.au/en/job/50143...
🦐 Research Associate – Krill Physiologist
🚢 Study #climate change impacts on #Antarctic krill through fieldwork on marine voyages and aquaria experiments
✍️ Applications close 26 October 2025
▶️ careers.utas.edu.au/en/job/50143...