Christine Siddoway
@iphigenesdream.bsky.social
Field geologist, US Antarctic Program investigator - West Antarctica, College professor, Proterozoic-lover, admirer of Iphigene Ochs. Favorite mineral: Cordierite. Best rock types: mylonite, kinzigite and diamictite! Favorite weather: blowing snow.
Happy #SantaBarbaraDay -- patron saint of #Geologists and Miners, among others! may be called upon to keep #lightning at bay.
A Day to Honor Saint Barbara
December 4th was the universal feast of St. Barbara, until the revision of the General Roman Calendar. Saint Barbara was a maiden of great beauty whose father locked her in a tower to remove her from ...
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December 5, 2025 at 2:14 AM
Happy #SantaBarbaraDay -- patron saint of #Geologists and Miners, among others! may be called upon to keep #lightning at bay.
Reposted by Christine Siddoway
MYIC drilling team landed at Dome C earlier today. We are one day behind schedule, which in the face of logistical and weather challenges of operating in Antarctica is a big WIN!!
Two months ahead of us for deep drill set up and ice coring. Bring it on!!
Two months ahead of us for deep drill set up and ice coring. Bring it on!!
November 21, 2025 at 5:54 AM
MYIC drilling team landed at Dome C earlier today. We are one day behind schedule, which in the face of logistical and weather challenges of operating in Antarctica is a big WIN!!
Two months ahead of us for deep drill set up and ice coring. Bring it on!!
Two months ahead of us for deep drill set up and ice coring. Bring it on!!
Reposted by Christine Siddoway
📍❄️🐧 Happy #AntarcticaDay! Sixty-six years ago today, the Antarctic Treaty designated the continent as a “natural reserve, devoted to peace and science.” Today, nearly 60 nations recognize this treaty.
December 1, 2025 at 1:16 PM
📍❄️🐧 Happy #AntarcticaDay! Sixty-six years ago today, the Antarctic Treaty designated the continent as a “natural reserve, devoted to peace and science.” Today, nearly 60 nations recognize this treaty.
Reposted by Christine Siddoway
It’s Antarctica Day! Give it up for this articulated skeleton of Thrinaxodon, an early mammal relative from 250 million years ago, found in the Transantarctic Mountains 8 years ago. This continent has an amazing fossil heritage that we’re continuing to learn more about!
December 1, 2025 at 5:25 PM
It’s Antarctica Day! Give it up for this articulated skeleton of Thrinaxodon, an early mammal relative from 250 million years ago, found in the Transantarctic Mountains 8 years ago. This continent has an amazing fossil heritage that we’re continuing to learn more about!
Reposted by Christine Siddoway
Happy Antarctica Day!
Today we celebrate 66 years of the Antarctic Treaty, an international promise to keep Antarctica a continent of peace, science, and environmental protection.
Today we celebrate 66 years of the Antarctic Treaty, an international promise to keep Antarctica a continent of peace, science, and environmental protection.
December 1, 2025 at 7:50 AM
Happy Antarctica Day!
Today we celebrate 66 years of the Antarctic Treaty, an international promise to keep Antarctica a continent of peace, science, and environmental protection.
Today we celebrate 66 years of the Antarctic Treaty, an international promise to keep Antarctica a continent of peace, science, and environmental protection.
Reposted by Christine Siddoway
Happy Antarctica Day! We’ve recently updated this map to show consultative and non-consultative signatories of the Antarctic Treaty, signed on this day in 1959. The Treaty designates Antarctica a continent for peace and science. December 1st raises awareness of this global agreement and its goals.
December 1, 2025 at 5:01 PM
Happy Antarctica Day! We’ve recently updated this map to show consultative and non-consultative signatories of the Antarctic Treaty, signed on this day in 1959. The Treaty designates Antarctica a continent for peace and science. December 1st raises awareness of this global agreement and its goals.
Antarctica Day celebrations at the Paleontological Research Institution's Museum of the Earth earlier today.
Alejandra Gandolfo gave a talk about Antarctica's green history as a bridge for flora in Gondwana, grad students presented on subglacial robot research and Antarctic dinos were drawn!
Alejandra Gandolfo gave a talk about Antarctica's green history as a bridge for flora in Gondwana, grad students presented on subglacial robot research and Antarctic dinos were drawn!
December 2, 2025 at 4:23 AM
Reposted by Christine Siddoway
Antarctica Day celebrations at the Paleontological Research Institution's Museum of the Earth earlier today.
Alejandra Gandolfo gave a talk about Antarctica's green history as a bridge for flora in Gondwana, grad students presented on subglacial robot research and Antarctic dinos were drawn!
Alejandra Gandolfo gave a talk about Antarctica's green history as a bridge for flora in Gondwana, grad students presented on subglacial robot research and Antarctic dinos were drawn!
December 1, 2025 at 2:30 AM
Antarctica Day celebrations at the Paleontological Research Institution's Museum of the Earth earlier today.
Alejandra Gandolfo gave a talk about Antarctica's green history as a bridge for flora in Gondwana, grad students presented on subglacial robot research and Antarctic dinos were drawn!
Alejandra Gandolfo gave a talk about Antarctica's green history as a bridge for flora in Gondwana, grad students presented on subglacial robot research and Antarctic dinos were drawn!
@schmidtocean.bsky.social committing great resources to #SouthernOcean monitoring and research
We wish you a happy Antarctica Day!
The #AntarcticClimateConnections team was moved by the experience of crossing the divide — not just between countries & continents, but between the known & the unknown in Antarctica. Watch our short film, Crossing the Divide: youtu.be/C4e3GZkGwxk?...
The #AntarcticClimateConnections team was moved by the experience of crossing the divide — not just between countries & continents, but between the known & the unknown in Antarctica. Watch our short film, Crossing the Divide: youtu.be/C4e3GZkGwxk?...
Crossing the Divide | Climate Connections at the Ice-Sea Interface
YouTube video by Schmidt Ocean
youtu.be
December 2, 2025 at 4:20 AM
@schmidtocean.bsky.social committing great resources to #SouthernOcean monitoring and research
Reposted by Christine Siddoway
🌏 Happy Antarctica Day! ❄️
Today we celebrate global cooperation in protecting and understanding one of Earth’s most unique and fragile environments.
A huge thanks to all our researchers for driving this work forward every day.
🎥 Learn more in our new ACEAS video: www.youtube.com/watch?v=AGg3...
Today we celebrate global cooperation in protecting and understanding one of Earth’s most unique and fragile environments.
A huge thanks to all our researchers for driving this work forward every day.
🎥 Learn more in our new ACEAS video: www.youtube.com/watch?v=AGg3...
Introduction to ACEAS
YouTube video by ACEAS
www.youtube.com
December 1, 2025 at 1:48 AM
🌏 Happy Antarctica Day! ❄️
Today we celebrate global cooperation in protecting and understanding one of Earth’s most unique and fragile environments.
A huge thanks to all our researchers for driving this work forward every day.
🎥 Learn more in our new ACEAS video: www.youtube.com/watch?v=AGg3...
Today we celebrate global cooperation in protecting and understanding one of Earth’s most unique and fragile environments.
A huge thanks to all our researchers for driving this work forward every day.
🎥 Learn more in our new ACEAS video: www.youtube.com/watch?v=AGg3...
Reposted by Christine Siddoway
Happy Antarctica Day! On December 1 in 1959, 12 nations signed the Antarctic Treaty, which established #Antarctica as a "natural reserve, devoted to peace and science".
Images from my season with @swais2c.bsky.social - good luck for this season!
Images from my season with @swais2c.bsky.social - good luck for this season!
December 1, 2025 at 9:07 AM
Happy Antarctica Day! On December 1 in 1959, 12 nations signed the Antarctic Treaty, which established #Antarctica as a "natural reserve, devoted to peace and science".
Images from my season with @swais2c.bsky.social - good luck for this season!
Images from my season with @swais2c.bsky.social - good luck for this season!
Reposted by Christine Siddoway
"Bergy Bits" and Bliss
Happy Antarctica Day! #LoveAntarctica #AntarcticaDay #MountainMonday #ClassicMono
Dalgiesh Bay, Pourquoi Pas Island, Antarctica 🇦🇶
🧭 67°42'46" S 67°44'40" W
#photography #landscape #originalcontent #blackandwhite #monochrome #TRLT #travel #offthebeatenpath #Antarctica
Happy Antarctica Day! #LoveAntarctica #AntarcticaDay #MountainMonday #ClassicMono
Dalgiesh Bay, Pourquoi Pas Island, Antarctica 🇦🇶
🧭 67°42'46" S 67°44'40" W
#photography #landscape #originalcontent #blackandwhite #monochrome #TRLT #travel #offthebeatenpath #Antarctica
December 1, 2025 at 6:35 PM
"Bergy Bits" and Bliss
Happy Antarctica Day! #LoveAntarctica #AntarcticaDay #MountainMonday #ClassicMono
Dalgiesh Bay, Pourquoi Pas Island, Antarctica 🇦🇶
🧭 67°42'46" S 67°44'40" W
#photography #landscape #originalcontent #blackandwhite #monochrome #TRLT #travel #offthebeatenpath #Antarctica
Happy Antarctica Day! #LoveAntarctica #AntarcticaDay #MountainMonday #ClassicMono
Dalgiesh Bay, Pourquoi Pas Island, Antarctica 🇦🇶
🧭 67°42'46" S 67°44'40" W
#photography #landscape #originalcontent #blackandwhite #monochrome #TRLT #travel #offthebeatenpath #Antarctica
Happy Antarctica Day! 💙
1 December is the anniversary of the signing of the Antarctic Treaty in 1959.
Australia was one of 12 original signatories to the Treaty, which established #Antarctica as a "natural reserve, devoted to peace and science".
1 December is the anniversary of the signing of the Antarctic Treaty in 1959.
Australia was one of 12 original signatories to the Treaty, which established #Antarctica as a "natural reserve, devoted to peace and science".
December 2, 2025 at 4:17 AM
How did I miss this post, @tomarney.com ?? That is one mighty fine title page!! #AntarcticaDay #AmundsenSea #IRD #SouthernOcean #subglacialBedrock #WAIS #WestAntarcticIceSheet 🙌
December 2, 2025 at 4:14 AM
How did I miss this post, @tomarney.com ?? That is one mighty fine title page!! #AntarcticaDay #AmundsenSea #IRD #SouthernOcean #subglacialBedrock #WAIS #WestAntarcticIceSheet 🙌
Just picture it: the British Isles with #IceShelves and a thoroughly frozen #EnglishChannel .... until calving off the shelves released enormous #icebergs !
Icebergs? The size of a city? 90 miles from the UK? Must be a joke, right?
No! Our new paper in @natcomms.nature.com shows massive tabular icebergs broke off the UK in the last ice age before the UK’s ice shelves disintegrated from climate warming.
🧵
www.nature.com/articles/s41...
@bas.ac.uk
No! Our new paper in @natcomms.nature.com shows massive tabular icebergs broke off the UK in the last ice age before the UK’s ice shelves disintegrated from climate warming.
🧵
www.nature.com/articles/s41...
@bas.ac.uk
Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation - Nature Communications
Massive tabular icebergs broke off of the UK during the last ice age. The widespread break-up of the ice shelves which produced these giant icebergs can be traced to around 18,000 years ago, and likel...
www.nature.com
December 2, 2025 at 4:11 AM
Just picture it: the British Isles with #IceShelves and a thoroughly frozen #EnglishChannel .... until calving off the shelves released enormous #icebergs !
In this day and age -- there is NO reason for this hammer fisted bludgeoning of Life , of #marinelife
I will forever be haunted by this footage.
Trawling has only been filmed underwater a few times in documentary history, and never with such clarity.
What’s so heart-rending about these shots is watching how the animals don’t just get swept up — they swim for their lives.
🌎🦑🧪
Trawling has only been filmed underwater a few times in documentary history, and never with such clarity.
What’s so heart-rending about these shots is watching how the animals don’t just get swept up — they swim for their lives.
🌎🦑🧪
December 2, 2025 at 4:08 AM
In this day and age -- there is NO reason for this hammer fisted bludgeoning of Life , of #marinelife
Reposted by Christine Siddoway
🌟OPEN ACCESS🌟 In a new #BSSA paper, scientists present a new way to determine moment magnitude for moderate-to-large earthquakes within about 6 to 11 minutes after origin time. ⚒️
pubs.geoscienceworld.org/ssa/bssa/art...
pubs.geoscienceworld.org/ssa/bssa/art...
December 2, 2025 at 3:00 AM
🌟OPEN ACCESS🌟 In a new #BSSA paper, scientists present a new way to determine moment magnitude for moderate-to-large earthquakes within about 6 to 11 minutes after origin time. ⚒️
pubs.geoscienceworld.org/ssa/bssa/art...
pubs.geoscienceworld.org/ssa/bssa/art...
Reposted by Christine Siddoway
Kelly: He runs around on stage talking about lethality and the warrior ethos.. That’s not the message that should be coming from the Secretary of Defense… He runs around on a stage like he’s a 12 year old playing army. It’s embarrassing.
December 1, 2025 at 9:12 PM
Kelly: He runs around on stage talking about lethality and the warrior ethos.. That’s not the message that should be coming from the Secretary of Defense… He runs around on a stage like he’s a 12 year old playing army. It’s embarrassing.
@hollypickett28.bsky.social Happy Antarctica Day!
December 2, 2025 at 3:26 AM
@hollypickett28.bsky.social Happy Antarctica Day!
Reposted by Christine Siddoway
How to avoid politics on Bluesky 🦋 [THREAD]
When scientists left X, many hoped for a quieter space. But politics will take over your feeds unless you actively do something about it. This guide will help you if you just want to follow your scientific interest!
mikeyoungacademy.dk/researchers-...
When scientists left X, many hoped for a quieter space. But politics will take over your feeds unless you actively do something about it. This guide will help you if you just want to follow your scientific interest!
mikeyoungacademy.dk/researchers-...
Researchers are (also) stoking politics on Bluesky. Here is how to avoid it
When researchers migrated from X to Bluesky, the hope was for a quieter space. They wanted less outrage, and more science. But reality is biting back. So here are a few tips to avoid the politics anyw...
mikeyoungacademy.dk
September 18, 2025 at 10:18 AM
How to avoid politics on Bluesky 🦋 [THREAD]
When scientists left X, many hoped for a quieter space. But politics will take over your feeds unless you actively do something about it. This guide will help you if you just want to follow your scientific interest!
mikeyoungacademy.dk/researchers-...
When scientists left X, many hoped for a quieter space. But politics will take over your feeds unless you actively do something about it. This guide will help you if you just want to follow your scientific interest!
mikeyoungacademy.dk/researchers-...
Reposted by Christine Siddoway
Devastating fire on Tongariro -- An iwi-supported ten-year rāhui over the fire ground will provide time for the whenua to heal and for restoration and recovery to begin.
The fire is out, but Tongariro is now at risk of losing its unique biological legacy
The disaster should raise questions about how we fund, manage and protect these vulnerable habitats when climate change is outpacing conservation efforts.
theconversation.com
November 16, 2025 at 8:14 PM
Devastating fire on Tongariro -- An iwi-supported ten-year rāhui over the fire ground will provide time for the whenua to heal and for restoration and recovery to begin.
Reposted by Christine Siddoway
Donald Trump is destroying the US in ways that even al-Qaeda never envisioned.
October 22, 2025 at 11:15 AM
Donald Trump is destroying the US in ways that even al-Qaeda never envisioned.
Reposted by Christine Siddoway
This is good reporting on the disaster in Alaska if you're looking for a reliable summary.
This is a bigger disaster than I think most are realizing. 1500 people have been displaced by the flooding with an exceptionally complicated response and recovery.
www.youtube.com/watch?v=t5kz...
This is a bigger disaster than I think most are realizing. 1500 people have been displaced by the flooding with an exceptionally complicated response and recovery.
www.youtube.com/watch?v=t5kz...
Rescue crews airlift hundreds out of rural Alaskan villages after powerful storm
YouTube video by PBS NewsHour
www.youtube.com
October 17, 2025 at 11:31 AM
This is good reporting on the disaster in Alaska if you're looking for a reliable summary.
This is a bigger disaster than I think most are realizing. 1500 people have been displaced by the flooding with an exceptionally complicated response and recovery.
www.youtube.com/watch?v=t5kz...
This is a bigger disaster than I think most are realizing. 1500 people have been displaced by the flooding with an exceptionally complicated response and recovery.
www.youtube.com/watch?v=t5kz...
#Oceans and marine #biosphere are well-tuned and responsive to Earth's imbalances...
Fifty miles off the Tuscan coast, in a sparkling blue expanse, ancient creatures are roosting beneath the waves. They spend their days feasting on an unlikely source of nourishment: methane, a potent greenhouse gas that leaks out of cracks in the seafloor. www.nytimes.com/2025/10/06/c...
October 13, 2025 at 11:55 AM
#Oceans and marine #biosphere are well-tuned and responsive to Earth's imbalances...